Fictional elements, isotopes and atomic particles
Encyclopedia
This list contains chemical element
Chemical element
A chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus. Familiar examples of elements include carbon, oxygen, aluminum, iron, copper, gold, mercury, and lead.As of November 2011, 118 elements...

s, material
Material
Material is anything made of matter, constituted of one or more substances. Wood, cement, hydrogen, air and water are all examples of materials. Sometimes the term "material" is used more narrowly to refer to substances or components with certain physical properties that are used as inputs to...

s, isotope
Isotope
Isotopes are variants of atoms of a particular chemical element, which have differing numbers of neutrons. Atoms of a particular element by definition must contain the same number of protons but may have a distinct number of neutrons which differs from atom to atom, without changing the designation...

s or (sub)atomic particle
Particle physics
Particle physics is a branch of physics that studies the existence and interactions of particles that are the constituents of what is usually referred to as matter or radiation. In current understanding, particles are excitations of quantum fields and interact following their dynamics...

 that exist primarily in works of fiction
Fiction
Fiction is the form of any narrative or informative work that deals, in part or in whole, with information or events that are not factual, but rather, imaginary—that is, invented by the author. Although fiction describes a major branch of literary work, it may also refer to theatrical,...

 (usually fantasy
Fantasy
Fantasy is a genre of fiction that commonly uses magic and other supernatural phenomena as a primary element of plot, theme, or setting. Many works within the genre take place in imaginary worlds where magic is common...

 or science fiction
Science fiction
Science fiction is a genre of fiction dealing with imaginary but more or less plausible content such as future settings, futuristic science and technology, space travel, aliens, and paranormal abilities...

). No actual periodic elements end in "-ite", though many mineral
Mineral
A mineral is a naturally occurring solid chemical substance formed through biogeochemical processes, having characteristic chemical composition, highly ordered atomic structure, and specific physical properties. By comparison, a rock is an aggregate of minerals and/or mineraloids and does not...

s have names with this suffix. Some of the materials listed as elements below may indeed be minerals, alloys, or other such combinations, but fictional works are often vague on such distinctions. Grouping is done by what seems most likely.

Fictional elements and materials

Name Source Uses
Acoustium Batman Beyond
Batman Beyond
Batman Beyond is an American animated television series created by Warner Bros. Animation in collaboration with DC Comics as a continuation of the Batman legacy...

Featured in the episode "Shriek", an alloy that amplifies sonic vibration.
Adamant
Adamant
Adamant and similar words are used to refer to any especially hard substance, whether composed of diamond, some other gemstone, or some type of metal. Both adamant and diamond derive from the Greek word αδαμας , meaning "untameable"...

Greek Mythology
Greek mythology
Greek mythology is the body of myths and legends belonging to the ancient Greeks, concerning their gods and heroes, the nature of the world, and the origins and significance of their own cult and ritual practices. They were a part of religion in ancient Greece...

,Various later works
A strong, hard metal. has numerous mentions going back to antiquity. The term initially referred to any unknown super-hard material but in Medieval works it may also refer to magnetic materials.
Adamantite Greek Mythology
Greek mythology
Greek mythology is the body of myths and legends belonging to the ancient Greeks, concerning their gods and heroes, the nature of the world, and the origins and significance of their own cult and ritual practices. They were a part of religion in ancient Greece...

, Dungeons & Dragons
Dungeons & Dragons
Dungeons & Dragons is a fantasy role-playing game originally designed by Gary Gygax and Dave Arneson, and first published in 1974 by Tactical Studies Rules, Inc. . The game has been published by Wizards of the Coast since 1997...

, Dwarf Fortress
Dwarf Fortress
Slaves to Armok: God of Blood, Chapter II: Dwarf Fortress, also called Slaves to Armok II: Dwarf Fortress, but most commonly known simply as Dwarf Fortress, is a freeware computer game by Bay 12 Games for Microsoft Windows, Linux, and Mac OS X set in a high fantasy universe that combines aspects of...

, RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

, World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

, and other games.
A strong metal. Sometimes spelled "Adamantine". Presumably derived from the classic term and fictional material Adamant
Adamant
Adamant and similar words are used to refer to any especially hard substance, whether composed of diamond, some other gemstone, or some type of metal. Both adamant and diamond derive from the Greek word αδαμας , meaning "untameable"...

, which has numerous mentions going back to antiquity; the term initially referred to any unknown super-hard material, and finally settled on diamond. Often green.
Adamantium Marvel Comics
Marvel Comics
Marvel Worldwide, Inc., commonly referred to as Marvel Comics and formerly Marvel Publishing, Inc. and Marvel Comics Group, is an American company that publishes comic books and related media...

, Final Fantasy
Final Fantasy
is a media franchise created by Hironobu Sakaguchi, and is developed and owned by Square Enix . The franchise centers on a series of fantasy and science-fantasy role-playing video games , but includes motion pictures, anime, printed media, and other merchandise...

, Warhammer 40K, Morrowind, Maplestory
MapleStory
MapleStory is a free-to-play, 2D, side-scrolling massively multiplayer online role-playing game developed by the South Korean company Wizet. Several versions of the game are available for specific countries or regions, and each is published by various companies such as Nexon...

Adamantium is a series of closely related compounds of iron mixed with chemical resins. It has been frequently described as being virtually indestructible. Substance of the skeleton of Wolverine
Wolverine (comic book)
Wolverine is a number of Marvel Comics comic book series starring the X-Men member Wolverine.-Publication history:The first Wolverine was a limited series written by Chris Claremont with pencils by Frank Miller, inks by Joe Rubinstein, letters by Tom Orzechowski, and colored by Glynis Wein...

.
Afraidium Robots
Robots (film)
Robots is a 2005 American computer-animated comedy film produced by Blue Sky Studios for 20th Century Fox, and was released theatrically on March 11, 2005. The story was created by Chris Wedge and William Joyce, a children's book author/illustrator. The two were trying to create a film version of...

The robot Fender claims to be made of this metal. "It's yellow," he states, "and tastes like chicken."
Agricite SWAT Kats It is a metal mineral that occurs in the ground and is mined outside of MegaKat City. It is incredibly strong and is used to make hardened objects like tanks.
Alkahest
Alkahest
Alkahest is a hypothetical universal solvent, having the power to dissolve every other substance, including gold. It was much sought after by alchemists for what they thought would be its invaluable medicinal qualities. The name is believed to have been invented by Paracelsus from Switzerland,...

Alchemy
Alchemy
Alchemy is an influential philosophical tradition whose early practitioners’ claims to profound powers were known from antiquity. The defining objectives of alchemy are varied; these include the creation of the fabled philosopher's stone possessing powers including the capability of turning base...

A powerful substance, most known as a "universal solvent", which could dissolve everything. It was sought in alchemy.
Allanite Steel The Tunnel
The Tunnel (1935 film)
The Tunnel, also known as Transatlantic Tunnel in the United States, is a 1935 British science fiction film based on the 1913 novel Der Tunnel by Bernhard Kellermann, about the building of a transatlantic tunnel. It was directed by Maurice Elvey and stars Richard Dix, Leslie Banks, Madge Evans,...

Allanite steel was the special superior alloy developed by Richard "Mac" McAllan that made the construction of a transatlantic tunnel
Transatlantic tunnel
A transatlantic tunnel is a theoretical tunnel which would span the Atlantic Ocean between North America and Europe and would carry mass transit of some type—trains are envisioned in most proposals.Using advanced technologies, speeds of are envisaged....

 possible in the 1935 film The Tunnel
The Tunnel (1935 film)
The Tunnel, also known as Transatlantic Tunnel in the United States, is a 1935 British science fiction film based on the 1913 novel Der Tunnel by Bernhard Kellermann, about the building of a transatlantic tunnel. It was directed by Maurice Elvey and stars Richard Dix, Leslie Banks, Madge Evans,...

, based on the novel Der Tunnel
Der Tunnel (novel)
Der Tunnel is a novel by Bernhard Kellermann published in April 1913. The novel sold 100,000 copies in the six months after its publication, and it became one of the most successful books of the first half of the 20th Century. By 1939 its circulation had reached millions...

 by Bernhard Kellermann
Bernhard Kellermann
Bernhard Kellermann was a well known German author and poet.- Life :Bernhard Kellermann enrolled in 1899 at Munich's Technical University initially in general studies, but later focused on German literature and painting....

.
AM2 The Sten Chronicles
The Sten Chronicles
The Sten Chronicles are a series of eight military science fiction novels by Chris Bunch and Allan Cole published from 1982 to 1993. The series was originally published by Del Rey and then re-released by Orbit...

Antimatter mineral from parallel universe (only known to Emperor), the unique energy source that provides all power needs of mankind and the Earth Empire.
Amazonium DC Comics
DC Comics
DC Comics, Inc. is one of the largest and most successful companies operating in the market for American comic books and related media. It is the publishing unit of DC Entertainment a company of Warner Bros. Entertainment, which itself is owned by Time Warner...

Found only on the island of Themyscira
Themyscira
Themyscira is a fictional island nation in the DC Comics universe that is the place of origin of Wonder Woman and her sister Amazons. Known as Paradise Island since Wonder Woman and the island's first appearance in All Star Comics #8 , it was renamed "Themyscira" with the character's February...

, this metal is used in alloys to create extremely strong and lightweight armor. An example of an amazonium alloy is found in Wonder Woman
Wonder Woman
Wonder Woman is a DC Comics superheroine created by William Moulton Marston. She first appeared in All Star Comics #8 . The Wonder Woman title has been published by DC Comics almost continuously except for a brief hiatus in 1986....

's bracelets. See also feminum.
Andrium Master of Orion
Master of Orion
Master of Orion is a turn-based, 4X science fiction computer strategy game released in 1993 by MicroProse on the MS-DOS and Mac OS operating systems. The purpose of the game is to lead one of ten races to dominate the galaxy through a combination of diplomacy and conquest while developing...

Andrium Armor is the fourth strongest type of armor in the Master of Orion
Master of Orion
Master of Orion is a turn-based, 4X science fiction computer strategy game released in 1993 by MicroProse on the MS-DOS and Mac OS operating systems. The purpose of the game is to lead one of ten races to dominate the galaxy through a combination of diplomacy and conquest while developing...

 series.
Antidermis Bionicle
Bionicle
Bionicle is a line of toys by the LEGO Group marketed primarily for 5- to 16-year-olds. The line was launched on December 30, 2000 in Europe and June/July 2001 in Canada and the United States. "Bionicle" is a portmanteau constructed from the words "biological" and "chronicle"...

Antidermis, a green-black liquid or gas, it makes up the essence of the Makuta. The Piraka use it to enslave other creatures, namely Matoran, whom it makes susceptible to suggestion. It also strengthens Brutaka's species and makes the Skakdi violently ill. The only known substance which counteracts its effects is Energized Protodermis.
Anti-plastic Doctor Who—"Rose
Rose (Doctor Who)
"Rose" is the first episode of Series One of the British science-fiction television series Doctor Who. Written by show runner Russell T Davies and directed by Keith Boak, the episode was first broadcast on 26 March 2005....

"
Anti-plastic is a substance that destroys plastic, including creatures made out of living plastic, such as the Nestene Consciousness
Auton
The Autons are an artificial life form from the British science fiction television series Doctor Who, and adversaries of the Doctor. First appearing in Jon Pertwee's first serial as the Doctor, Spearhead from Space in 1970, they were the first monsters on the show to be presented in colour.Autons...

. Can be made by mixing materials such as hair spray, nail polish and other substances like such, as seen in Autonomy
Autonomy (Doctor Who)
Autonomy is a BBC Books original novel written by Daniel Blythe and based on the long-running British science fiction television series Doctor Who. It features the Tenth Doctor without an official companion. It was released on September 3, 2009, alongside The Taking of Chelsea 426 and The...

.
Arcanite (Warcraft) Warcraft universe
Warcraft Universe
Warcraft is a franchise of video games, novels, and other media originally created by Blizzard Entertainment. The series is made up of Four core games: Warcraft: Orcs & Humans, Warcraft II: Tides of Darkness, Warcraft III: Reign of Chaos, and World of Warcraft...

A dull, flexible metal that can be forged to an edge sharper than iron and steel.
Arenak (Skylark series) Skylark of Space Epoxy-like substance that when catalyzed by salt
Salt
In chemistry, salts are ionic compounds that result from the neutralization reaction of an acid and a base. They are composed of cations and anions so that the product is electrically neutral...

 becomes useful armor much harder than the best Terran steel. Salt is highly coveted by both opposing sides warring over a world that the Skylark visits because of its extreme rarity on that world. The more barbaric side (Mardonale) was about to kill the Skylark crew to obtain the salt from their bodies, before being stopped by Prince Dunark, leader of the more civilized side of the war.
Argonite
Argonite
Argonite is a name brand and registered trademark owned by Ginge-Kerr for a mixture of 50% argon and 50% nitrogen . It is an inert gas used in gaseous fire suppression systems. Ginge-Kerr is part of United Technologies Fire & Security...

Marvel Comics Earth-712, RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

A radioactive substance which weakens the fictional superhero Hyperion
Hyperion (comics)
Hyperion is the name of several fictional characters that appear in publications published by Marvel Comics. The first character debuted in The Avengers #69 Hyperion is the name of several fictional characters that appear in publications published by Marvel Comics. The first character debuted in...

. (So just as Hyperion corresponds to Superman, Argonite corresponds to kryptonite
Kryptonite
Kryptonite is a fictional material from the Superman mythos —the ore form of a radioactive element from Superman's home planet of Krypton. It is famous for being the ultimate physical weakness of Superman, and the word kryptonite has since become synonymous with an Achilles' heel —the one weakness...

.) In RuneScape it appears as a light blue metal found only in Daemonheim.
Atium Mistborn series
Mistborn series
The Mistborn series is a trilogy of high fantasy novels, written by Brandon Sanderson. Published by Tor Fantasy between 2006 and 2008, the series currently consists of Mistborn: The Final Empire, Mistborn: The Well of Ascension, and Mistborn: The Hero of Ages. A stand-alone short novel titled...

A metal which allows Mistborn to see a few seconds into the future, thereby allowing them to anticipate the moves of an opponent. It also enhances the mind to cope with and understand these new insights, effectively turning a Mistborn invincible for a short time. Atium burns very quickly.
Atmosphereum (also often spelled as "Atmospherium") The Lost Skeleton of Cadavra
The Lost Skeleton of Cadavra
The Lost Skeleton of Cadavra is an independent film spoofing 1950s era B-movies. It was videotaped on a budget of less than USD $100,000, and converted to black-and-white film in post-production. Larry Blamire acted in and directed the film, wrote its screenplay and provided the voice of the...

An extremely rare element, abundant in outer space, which among many other uses is a power source and capable of raising the dead. If obtained and researched, it would certainly have countless benefits for science.
Australium Team Fortress 2
Team Fortress 2
Team Fortress 2 is a free-to-play team-based first-person shooter multiplayer video game developed by Valve Corporation. A sequel to the original mod Team Fortress based on the Quake engine, it was first released as part of the video game compilation The Orange Box on October 10, 2007 for Windows...

An element originating from Australia that is similar to gold, the major difference being the nucleus resembling a pair of boxing kangaroos. It can adapt and transform itself into different states and forms, therefore making it extremely valuable and sought-after. It enhances the intelligence of whoever holds it and is known to turn complete idiots into geniuses. Side effects includes a steroids-like effect and a peculiar love for beer. Aided in the invention of Teleporter Pads, Invisibility Watches, Life Extending Machines, and the "entire spectrum of mustache sciences".
Axonite Doctor Who
Doctor Who
Doctor Who is a British science fiction television programme produced by the BBC. The programme depicts the adventures of a time-travelling humanoid alien known as the Doctor who explores the universe in a sentient time machine called the TARDIS that flies through time and space, whose exterior...

—"The Claws of Axos
The Claws of Axos
-Writing:In late 1969, script editor Terrance Dicks contacted new writing duo Bob Baker and Dave Martin after reading a draft script they had sent around the BBC for another production, A Man's Life. After offering the duo a seven-part story in November 1969 for Doctor Whos eighth season, Baker and...

"
Axonite is supposedly a "thinking" molecule that can replicate any substance, but, in the end, turns out to be a malevolent element that intends to spread itself across the cosmos in order to feed itself.
Balthazate Guild Wars
Guild Wars
Guild Wars is an episodic series of online 3D fantasy role-playing games developed by ArenaNet and published by NCsoft. Although often defined as an MMORPG the developers define it as a CORPG due to significant differences from the MMORPG genre. It provides two main modes of gameplay—a cooperative...

A crystalline material found beneath the Shiverpeaks. Balthazate looks similar to quartz
Quartz
Quartz is the second-most-abundant mineral in the Earth's continental crust, after feldspar. It is made up of a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall formula SiO2. There are many different varieties of quartz,...

 crystals roughly half the size of a man. It is a highly potent explosive as shown when four crystals bring down a large portion of a cave when ignited.
Balthorium ("Balthorium-G") Dr. Strangelove, The Middleman (TV series)
The Middleman (TV series)
The Middleman is an American television series. The series, which was developed for television by Javier Grillo-Marxuach for ABC Family, is based on the Viper Comics series, The Middleman, created by Grillo-Marxuach and Les McClaine...

-"The Obsolescent Cryogenic Meltdown"
In Dr. Strangelove it is an element used in the Russians' doomsday device. It is possible that this is a mispronunciation, on the part of actor Peter Bull
Peter Bull
Peter Cecil Bull, DSC was a British character actor.- Biography :He was the fourth and youngest son of Hammersmith MP Sir William James Bull, 1st Bt..Bull was educated at Winchester College...

, of the words "Cobalt
Cobalt
Cobalt is a chemical element with symbol Co and atomic number 27. It is found naturally only in chemically combined form. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal....

-Thorium
Thorium
Thorium is a natural radioactive chemical element with the symbol Th and atomic number 90. It was discovered in 1828 and named after Thor, the Norse god of thunder....

 G," as both (real) elements can be used in atomic weapons to increase the amount of dangerous nuclear fallout
Nuclear fallout
Fallout is the residual radioactive material propelled into the upper atmosphere following a nuclear blast, so called because it "falls out" of the sky after the explosion and shock wave have passed. It commonly refers to the radioactive dust and ash created when a nuclear weapon explodes...

, which agrees with the sense in which "Balthorium" is used in the movie.
In The Middleman (TV series)
The Middleman (TV series)
The Middleman is an American television series. The series, which was developed for television by Javier Grillo-Marxuach for ABC Family, is based on the Viper Comics series, The Middleman, created by Grillo-Marxuach and Les McClaine...

 it is a very rare mineral which is necessary to power The Candle's Melting Ray.
Basidiumite (also Brumblium) Eleanor Cameron
Eleanor Cameron
Eleanor Frances Butler Cameron was a Canadian children's author. Her first book was The Unheard Music, published in 1950.-Life:...

's Mushroom Planet series
A slightly greenish solid, twice the density of uranium. Infragreen spectrum. Makes up the blue-green planet Basidium.
Bassnium Mega Man
Mega Man (video game)
Mega Man, known as in Japan, is a video game developed and published by Capcom for the Nintendo Entertainment System . It is the first game in the original Mega Man series and the entire Mega Man franchise...

A material accidentally discovered by Dr. Wily while attempting to create a robot similar to Mega Man. Bass was the result.
Bathus RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

A weak grey metal found only in RuneScape's Daemonheim.
Bazillionium Bayonetta
Bayonetta
is a hack and slash action game for the Xbox 360 and PlayStation 3 developed by Platinum Games in cooperation with publisher Sega. Set in a fictional city in Europe, the game centers on its title character, Bayonetta, who uses pistols and magical attacks to defeat enemies...

A metal used as an energy source for a quadruple pair of pistols known as the Bazillions, capable of generating bursts of crimson colored energy by physical force that can tear through molecular bonds and the time-space continuum.
Bazoolium Doctor Who
Doctor Who
Doctor Who is a British science fiction television programme produced by the BBC. The programme depicts the adventures of a time-travelling humanoid alien known as the Doctor who explores the universe in a sentient time machine called the TARDIS that flies through time and space, whose exterior...

A gold-colored metal that can predict the weather.
Beerium Young Einstein
Young Einstein
Young Einstein is an Australian comedy film directed by and starring Yahoo Serious, released in 1988.-Plot:Albert Einstein, the son of an apple farmer in Tasmania in the early 1900s, splits a beer atom with a chisel in order to add bubbles to beer, discovers the theory of relativity and travels to...

According to Yahoo Serious
Yahoo Serious
Yahoo Serious , born Greg Pead , is an Australian film actor, director and score composer. He is best known for his 1988 comedy Young Einstein. He also created Reckless Kelly in 1993 and Mr. Accident in 2000...

, who wrote and directed Young Einstein
Young Einstein
Young Einstein is an Australian comedy film directed by and starring Yahoo Serious, released in 1988.-Plot:Albert Einstein, the son of an apple farmer in Tasmania in the early 1900s, splits a beer atom with a chisel in order to add bubbles to beer, discovers the theory of relativity and travels to...

 as well as acting out the lead role, splitting the beerium atom infuses beer
Beer
Beer is the world's most widely consumed andprobably oldest alcoholic beverage; it is the third most popular drink overall, after water and tea. It is produced by the brewing and fermentation of sugars, mainly derived from malted cereal grains, most commonly malted barley and malted wheat...

 with bubbles.
Bendezium Metroid Prime
Metroid Prime
Metroid Prime is a video game developed by Retro Studios and Nintendo for the Nintendo GameCube, released in North America on November 17, 2002...

An extremely tough metal that can only be destroyed by a power bomb.
Beresium Star Trek: Enterprise
Star Trek: Enterprise
Star Trek: Enterprise is a science fiction television series. It follows the adventures of humanity's first warp 5 starship, the Enterprise, ten years before the United Federation of Planets shown in previous Star Trek series was formed.Enterprise premiered on September 26, 2001...

—"Terra Nova"
An asteroid which hit the Terra Nova colony contained this geological element. This impact of beresium created a "poison rain" which killed many colonists and drove the rest underground.
Bernalium Doctor Who
Doctor Who
Doctor Who is a British science fiction television programme produced by the BBC. The programme depicts the adventures of a time-travelling humanoid alien known as the Doctor who explores the universe in a sentient time machine called the TARDIS that flies through time and space, whose exterior...

—"The Wheel in Space
The Wheel in Space
The Wheel in Space is a serial in the British science fiction television series Doctor Who, which originally aired in six weekly parts from 27 April to 1 June 1968...

"
Evidently a conductive material, given its use in a high-energy weapon system. It gets its name from J. D. Bernal
J. D. Bernal
John Desmond Bernal FRS was one of Britain’s best known and most controversial scientists, called "Sage" by his friends, and known for pioneering X-ray crystallography in molecular biology.-Origin and education:His family was Irish, of mixed Italian and Spanish/Portuguese Sephardic Jewish origin...

, a British physicist.
Berynium Screamers A substance required for space flight.
Beskar Star Wars
Star Wars
Star Wars is an American epic space opera film series created by George Lucas. The first film in the series was originally released on May 25, 1977, under the title Star Wars, by 20th Century Fox, and became a worldwide pop culture phenomenon, followed by two sequels, released at three-year...

A metal used by the Mandalorian warriors. Also known as Mandalorian Iron.
Black Steel RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

A mid-strength metal in RuneScape. Its origin is unknown as it cannot be mined or smelted.
Blasium/Blazium Buck Rogers in the 25th Century (TV series)
Buck Rogers in the 25th Century (TV series)
Buck Rogers in the 25th Century is an American science fiction adventure television series produced by Universal Studios. The series ran for two seasons between 1979–1981, and the feature-length pilot episode for the series was released as a theatrical film several months before the series aired....

-"Twiki is Missing"
A white rock-like substance that resembles sugar cubes, and when ignited, a small amount "can blow up a small moon." Buck uses it later to reduce the mass of a frozen-oxygen meteor that is about to enter Earth's atmosphere.
Blingidium Wigu "The rarest compound in the universe." A large statue made of this substance in the shape of Topato is dug up by Wigu's family. Touching it leads to a feeling of ecstasy ("feeling light" and "tasting watermelon"). It is destroyed by the Space Mummy.
Blurite RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

A rare lightweight bluish-tinged metal. Mostly used for decoration as it is too soft for weaponry.
Boing! Judge Dredd
Judge Dredd
Judge Joseph Dredd is a comics character whose strip in the British science fiction anthology 2000 AD is the magazine's longest running . Dredd is an American law enforcement officer in a violent city of the future where uniformed Judges combine the powers of police, judge, jury and executioner...

Plastic of extremely high elasticity
Elasticity (physics)
In physics, elasticity is the physical property of a material that returns to its original shape after the stress that made it deform or distort is removed. The relative amount of deformation is called the strain....

Bolonium or Bolognium (or likely Baloneyium) Futurama
Futurama
Futurama is an American animated science fiction sitcom created by Matt Groening and developed by Groening and David X. Cohen for the Fox Broadcasting Company. The series follows the adventures of a late 20th-century New York City pizza delivery boy, Philip J...

, The Simpsons
The Simpsons
The Simpsons is an American animated sitcom created by Matt Groening for the Fox Broadcasting Company. The series is a satirical parody of a middle class American lifestyle epitomized by its family of the same name, which consists of Homer, Marge, Bart, Lisa and Maggie...

, etc.
A fictional element used to describe something as impossible or nonsensical. In the Futurama
Futurama
Futurama is an American animated science fiction sitcom created by Matt Groening and developed by Groening and David X. Cohen for the Fox Broadcasting Company. The series follows the adventures of a late 20th-century New York City pizza delivery boy, Philip J...

 episode "A Clone of My Own
A Clone of My Own
"A Clone of My Own" is episode ten in season two of Futurama. It originally aired in North America on April 9, 2000. It marks the first appearance of the recurring character Cubert Farnsworth.- Plot :...

", Cubert Farnsworth
Cubert Farnsworth
Cubert Farnsworth is a fictional character, Professor Farnsworth's clone from the animated television series Futurama. He was created from a growth on Professor Farnsworth's back in 2989. Cubert differs from the Professor in appearance due to his nose being squashed up against the wall of his...

 used the term "Weapons-grade
Weapons-grade
A weapons-grade substance is one that is pure enough to be used to make a weapon or has properties that make it suitable for weapons use. Weapons-grade plutonium and uranium are the most common examples, but it may also be used to refer to chemical and biological weapons...

 bolonium" as an insult to his "parent," Hubert Farnsworth's technology demonstrations. An episode of The Simpsons
The Simpsons
The Simpsons is an American animated sitcom created by Matt Groening for the Fox Broadcasting Company. The series is a satirical parody of a middle class American lifestyle epitomized by its family of the same name, which consists of Homer, Marge, Bart, Lisa and Maggie...

 featured an Oscar Mayer
Oscar Mayer
Oscar Mayer is an American meat and cold cut production company, owned by Kraft Foods, known for its hot dogs, bologna, bacon and Lunchables products.-History:...

 promotional periodic table of elements with the element, which states that the atomic weight of bolonium is "delicious" or "snacktacular."
The Star Trek The Motion Picture official blueprints published in 1980 specifically identify the Klingon K't'inga-class battle-cruiser as possessing bolognium engine shields.
Bombastium Uncle Scrooge
Uncle Scrooge
Uncle Scrooge is a comic book with the stingy Scrooge McDuck "the richest duck in the world" as the main character. The series also featured Donald Duck and his nephews as supporting characters. The first 70 issues mostly consisted of stories written and drawn by Carl Barks, the creator of Scrooge...

An element each atom of which, when dropped in a barrel of water, is capable of generating a barrel containing a different flavor of ice cream
Ice cream
Ice cream is a frozen dessert usually made from dairy products, such as milk and cream, and often combined with fruits or other ingredients and flavours. Most varieties contain sugar, although some are made with other sweeteners...

, according to Carl Barks
Carl Barks
Carl Barks was an American Disney Studio illustrator and comic book creator, who invented Duckburg and many of its inhabitants, such as Scrooge McDuck , Gladstone Gander , the Beagle Boys , The Junior Woodchucks , Gyro Gearloose , Cornelius Coot , Flintheart Glomgold , John D...

. It is discovered by the Brutopians. Scrooge McDuck
Scrooge McDuck
Scrooge McDuck is a cartoon character created in 1947 by Carl Barks and licensed by The Walt Disney Company. Scrooge is an anthropomorphic white duck with a yellow-orange bill, legs, and feet. He typically wears a red or blue frock coat, top hat, pince-nez glasses, and spats...

 pays one trillion dollars and six kitchen sinks for a soccer ball-sized sample of it in an auction in a 1957 story in Uncle Scrooge
Uncle Scrooge
Uncle Scrooge is a comic book with the stingy Scrooge McDuck "the richest duck in the world" as the main character. The series also featured Donald Duck and his nephews as supporting characters. The first 70 issues mostly consisted of stories written and drawn by Carl Barks, the creator of Scrooge...

 comics #17. In a Duck Tales story it is used to power a time machine
Time travel
Time travel is the concept of moving between different points in time in a manner analogous to moving between different points in space. Time travel could hypothetically involve moving backward in time to a moment earlier than the starting point, or forward to the future of that point without the...

 invented by Gyro Gearloose
Gyro Gearloose
Gyro Gearloose is a fictional character, an anthropomorphic chicken created by Carl Barks for The Walt Disney Company. He is part of the Scrooge McDuck universe, appearing in comic book stories as a friend of Donald Duck, Scrooge and anyone who is associated with them. He was also a frequent star...

.
Brightsteel Brisingr of the Inheritance Cycle
Inheritance Cycle
The Inheritance Cycle is a series of fantasy novels by Christopher Paolini. It was previously titled the Inheritance Trilogy until Paolini's announcement on October 30, 2007 that there would be a fourth book...

A mysterious metal that comes from meteors and is extremely hard. It was used by Rhunön, an elven smith, to make all the swords of the Dragon Riders, including Eragon's sword, Brisingr. Swords made of brightsteel, and enchanted in the right way, will never break. She found the brightsteel in deposits throughout Ellesméra, one deposit often being enough to make several swords. Swords often took multiple weeks of preparation and work to be made. Rhunön was unable to find any more by the time Eragon needed a sword, though, so he had to find it using a prophecy of a werecat
Werecat
A werecat is a therianthropic creature of folklore, horror, and occultism, described as being a shape-shifter similar to a Werewolf....

, Solembum, had given him, which was to look under the Menoa Tree when he needed a weapon. He found a piece of brightsteel ore there, and was able to make his sword with Rhunön's help.
Bulerite Macrolife
Macrolife
Macrolife: A Mobile Utopia is a 1979 science fiction novel by American author George Zebrowski.-Plot introduction:By 2021, Earth's nations are at peace, and even the erstwhile poorer nations are beginning to enjoy stable political and economic regimes...

Bulerite which is used to build the huge cities which house the Earth's (and colonies) teeming millions, are at the pinnacle of their influence and wealth. Unfortunately, it is discovered—-too late-—that the substance is inherently flawed, in that after a time it destabilizes and self-destructs with spectacular results.
Bydogen R-Type
R-Type
is a side scrolling shoot-em-up arcade game produced by Irem in 1987. The player controls a space fighter named R-9a "Arrowhead" to defend humanity against a mysterious but powerful alien life-form known as "Bydo", which was later discovered to be not entirely alien in origin...

A gel-like substance created by human militaries as a living weapon, which grew out of control into an alien menace. The Force modules contain and use bydogen to augment the weaponry of the attached R-Type ship.
Byzanium Raise the Titanic! A highly powerful radioactive element, the only supply of which was believed to have been transported in a vault aboard RMS Titanic.
Calculon The Adventures of Tintin
The Adventures of Tintin
The Adventures of Tintin is a series of classic comic books created by Belgian artist , who wrote under the pen name of Hergé...

, Destination Moon
Destination Moon (Tintin)
Destination Moon is the sixteenth of The Adventures of Tintin, a series of classic comic-strip albums, written and illustrated by Belgian writer and illustrator Hergé, featuring young reporter Tintin as a hero...

Discovered by Professor Cuthbert Calculus
Professor Calculus
Professor Cuthbert Calculus is a fictional character in The Adventures of Tintin, the series of classic Belgian comic books written and illustrated by Hergé...

. This substance has a silicon base and can resist very high temperatures. It was one of the scientific discoveries that enabled Professor Calculus to plan a manned mission to the Moon.
Caesium-frankolithic-mixia-lubidium-rixidixidexi-doxidroxide Red Dwarf
Red Dwarf
Red Dwarf is a British comedy franchise which primarily comprises eight series of a television science fiction sitcom that aired on BBC Two between 1988 and 1999 and Dave from 2009–present. It gained cult following. It was created by Rob Grant and Doug Naylor, who also wrote the first six series...

, Only The Good...
Only The Good...
Only the Good... is the final episode in the eighth series and the original run of the British science fiction series Red Dwarf. It was first shown in the UK on 5 April 1999 in the 9:00pm BBC2 time slot, and was written by Doug Naylor and directed by Ed Bye...

A chemical famous in its era, it was the cure for a virus that was eating away at the hulls of the mining ship, the Red Dwarf. It is not to be confused with Caesiumfrankolithicmixialubidiumrixidexidixidoxidroxide, which is a completely different compound.
Capsidium Teenage Mutant Ninja Turtles (1987)
Teenage Mutant Ninja Turtles (1987 TV series)
Teenage Mutant Ninja Turtles is an American animated television series produced by Murakami-Wolf-Swenson. The pilot was shown during the week of December 28, 1987 in syndication as a five part miniseries and began its official run on October 1, 1988...

—"The Fifth Turtles"
Creates energy during planetary conjunctions if the lights hit the Capsidium, used by Krang
Krang
Krang is a fictional supervillain who appears in the Sonic The Hedgehog TV shows and most frequently in the 1987 STH cartoon and its associated media, such as the Teenage Mutant Ninja Turtles Adventures comic book and most of the classic TMNT video games....

 and Shredder
Shredder (TMNT)
The Shredder is a fictional character and primary antagonist from the Teenage Mutant Ninja Turtles franchise. At one point or another in every incarnation of the TMNT stories, he has been the archenemy of Splinter and the Turtles...

 to power the Technodrome
Technodrome
The Technodrome is the semi-spherical tank-like metallic mobile subterranean fortress of Krang and Shredder, the main villains in the 1987 Teenage Mutant Ninja Turtles cartoon, the Archie Teenage Mutant Ninja Turtles Adventures comics and most TMNT video game adaptations. The Technodrome was also...

.
Carbonite Star Wars Episode V: The Empire Strikes Back
Star Wars Episode V: The Empire Strikes Back
Star Wars Episode V: The Empire Strikes Back is a 1980 American epic space opera film directed by Irvin Kershner. The screenplay, based on a story by George Lucas, was written by Leigh Brackett and Lawrence Kasdan...

A cryonic alloy, carbonite was originally used to keep tibanna gas fresh. The chamber in the Cloud City of Bespin was reconfigured to provide stasis for Luke Skywalker
Luke Skywalker
Luke Skywalker is a fictional character and the main protagonist of the original film trilogy of the Star Wars franchise, where he is portrayed by Mark Hamill. He is introduced in Star Wars Episode IV: A New Hope, in which he is forced to leave home, and finds himself apprenticed to the Jedi master...

 for his transport to Emperor Palpatine. It was tested on Han Solo
Han Solo
Han Solo is a fictional character in the Star Wars franchise played by Harrison Ford. Introduced in the film Star Wars Episode IV: A New Hope , Solo and his Wookiee co-pilot, Chewbacca , become involved in the Rebel Alliance against the Galactic Empire...

, whom Boba Fett
Boba Fett
Boba Fett is a character in Star Wars. A bounty hunter hired by Darth Vader to find the Millennium Falcon, he is a minor villain in both Star Wars Episode V: The Empire Strikes Back and Star Wars Episode VI: Return of the Jedi....

 then transported to Jabba the Hutt
Jabba the Hutt
Jabba the Hutt is a fictional character in George Lucas's space opera film saga Star Wars. Designed as a large, slug-like alien, his appearance has been described by film critic Roger Ebert as "Dickensian," a cross between a toad and the Cheshire Cat....

 to collect a price on Solo's head. It was then used to transport criminals. One known side effect of being encased in carbonite is temporary blindness.
Carbonium Fury3
Fury3
Fury3 is a video game developed by Terminal Reality and published by Microsoft in 1995 for Microsoft Windows. It is not a sequel to Terminal Velocity, but the two games share basic game mechanics and use the same engine...

Found exclusively on the planet L24-D. Carbonium explodes with 48 times the power and radiation damage of a fusion bomb.
Cargonite The 4-D Man
4D Man
4D Man is a 1959 American science fiction independent film, produced by Jack H. Harris from his own original screenplay and directed by Irvin S. Yeaworth Jr.-Plot:...

The mineral developed by scientist Scott Nelson capable of acting as "the ultimate defense," impenetrable to all weapons.
Carmot Alchemy
Alchemy
Alchemy is an influential philosophical tradition whose early practitioners’ claims to profound powers were known from antiquity. The defining objectives of alchemy are varied; these include the creation of the fabled philosopher's stone possessing powers including the capability of turning base...

This term was used by alchemists for a mythological element which the Philosopher's Stone
Philosopher's stone
The philosopher's stone is a legendary alchemical substance said to be capable of turning base metals into gold or silver. It was also sometimes believed to be an elixir of life, useful for rejuvenation and possibly for achieving immortality. For many centuries, it was the most sought-after goal...

 is said to be made of. The two items could be one and the same.
Cataclysmite H. Beam Piper
H. Beam Piper
Henry Beam Piper was an American science fiction author. He wrote many short stories and several novels. He is best known for his extensive Terro-Human Future History series of stories and a shorter series of "Paratime" alternate history tales.He wrote under the name H. Beam Piper...

's Fuzzy
Little Fuzzy
Little Fuzzy is the name of a 1962 science fiction novel by H. Beam Piper, and is now in public domain. It is generally seen as a work of juvenile fiction. It was nominated for the 1963 Hugo Award for Best Novel....

 novels
A high explosive material, useful in mining and prospecting, presumably more powerful than dynamite
Dynamite
Dynamite is an explosive material based on nitroglycerin, initially using diatomaceous earth , or another absorbent substance such as powdered shells, clay, sawdust, or wood pulp. Dynamites using organic materials such as sawdust are less stable and such use has been generally discontinued...

.
Cavorite H.G. Wells' The First Men in the Moon
The First Men in the Moon
The First Men in the Moon is a 1901 scientific romance novel by the English author H. G. Wells. The novel tells the story of a journey to the moon undertaken by the two protagonists, the impoverished businessman Mr Bedford and the brilliant but eccentric scientist Dr. Cavor...

 and The War of the Worlds
The War of the Worlds
The War of the Worlds is an 1898 science fiction novel written by H. G. Wells.The War of the Worlds may also refer to:- Radio broadcasts :* The War of the Worlds , the 1938 radio broadcast by Orson Welles...

Cavorite is impervious to gravity and can shield other materials from its effects. It is used to shield a craft from Earth's pull, allowing easy flight. It was named after its discoverer, Dr. Cavor, who used it to travel to the Moon. It also coats Martian flying machines, although it is referred to as a "gravity-blocking substance", and not Cavorite. It is also used in The League of Extraordinary Gentlemen
The League of Extraordinary Gentlemen
The League of Extraordinary Gentlemen is a comic book series written by Alan Moore and illustrated by Kevin O'Neill, publication of which began in 1999. The series spans two six-issue limited series and a graphic novel from the America's Best Comics imprint of Wildstorm/DC, and a third miniseries...

, Robert Buettner's Orphan
Orphan
An orphan is a child permanently bereaved of or abandoned by his or her parents. In common usage, only a child who has lost both parents is called an orphan...

 series, A Deepness in the Sky
A Deepness in the Sky
A Deepness in the Sky is a Hugo Award–winning science fiction novel by Vernor Vinge. Published in 1999, the novel is a loose prequel to his earlier novel A Fire Upon the Deep...

, Dr Grordbort's Contrapulotronic Dingus Directory (written and illustrated by Greg Broadmore, WETA Studios, New Zealand), and the second-season premier of Warehouse 13
Warehouse 13
Warehouse 13 is an American fantasy television series that premiered on July 7, 2009 on the Syfy network.Executive-produced by Jack Kenny and David Simkins, the dramatic comedy from Universal Media Studios has been described as borrowing much from 1980s television series Friday the 13th: The...

.
Celestial Bronze Percy Jackson and the Olympians
Percy Jackson and the Olympians
Percy Jackson & the Olympians is a pentalogy of adventure and fantasy fiction books authored by Rick Riordan. The series consists of five books, as well as spin-off titles such as The Demigod Files and Demigods and Monsters. Set in the United States, the books are predominantly based on Greek...

A metal that can only hurt immortals such as gods or monsters and their offspring
Cernium-116 Knight Rider (original series) in episode "Knight of the Juggernaut" An isotope produced by bombarding "a mass of plutonium with titanium ions..." It "is more radioactive than uranium...and highly unstable..."
Cheddite Harry Harrison's Star Smashers of the Galaxy Rangers
Star Smashers of the Galaxy Rangers
Star Smashers of the Galaxy Rangers is a comic science fiction novel by Harry Harrison. It is about two college students, Chuck van Chider and his friend Jerry Courtenay, who accidentally invent a device that can transport them through space, powered by a substance called "Cheddite", which is...

The result of a college prank where a student placed a chunk of cheddar cheese in a powerful cyclotron. The resulting material was dense, black and produced a powerful energy field when exposed to electricity. This field could be used to flip a spacecraft through enormous distances virtually instantaneously when incorporated into a Cheddite drive unit. Not to be confused with the real-world explosive compound
Cheddite
Cheddite is a class of explosive materials that were originally manufactured in the town of Chedde in Haute-Savoie, France in the early twentieth century. Closely related to Sprengel explosives, cheddites consisted of a high proportion of inorganic chlorates mixed with nitroaromatics Cheddite is a...

 of the same name.
Chelonium The Science of Discworld
The Science of Discworld
The Science of Discworld is a 1999 book by novelist Terry Pratchett and popular science writers Ian Stewart and Jack Cohen. Two sequels, The Science of Discworld II: The Globe and The Science of Discworld III: Darwin's Watch, have been written by the same authors.The book alternates between a...

A material which according to the Unseen University
Unseen University
The Unseen University is a school of wizardry in Terry Pratchett's Discworld series of fantasy novels. Located in the city of Ankh-Morpork, the UU is staffed by a faculty composed of mostly indolent and inept old wizards. The university's name is a pun on the Invisible College...

 wizards mostly makes up the world-bearing turtle "Great A'Tuin." Since they can do a test to determine its (non)existence in Roundworld, they are probably correct.
"Chemical X" The Powerpuff Girls
The Powerpuff Girls
The Powerpuff Girls is an American animated television series created by animator Craig McCracken and produced by Hanna-Barbera for Cartoon Network...

When Professor Utonium was creating the Powerpuff Girls, he accidentally added this chemical to the mixture of sugar, spice and "everything nice." It is responsible for granting the girls their super-human powers. Its chemical opposite and neutralizer is a mysterious substance called "Antidote X."
Chromedigizoid Digimon
Digimon
, short for , is a Japanese media franchise encompassing digital toys, anime, manga and video games. The franchise's eponymous creatures are monsters of various forms living in a "Digital World", a parallel universe that originated from Earth's various communication networks.-Conception and...

A digital metal alloy, present in many Digimon
Digimon (creature)
Digimon are fictional creatures from the Japanese Digimon media franchise. They are central to several anime series and films, manga, video games and other merchandise. The word "Digimon" is invariable in the plural, and stands for "Digital Monster"...

 as armor or weapons.
Chronoton Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

, Futurama
Futurama
Futurama is an American animated science fiction sitcom created by Matt Groening and developed by Groening and David X. Cohen for the Fox Broadcasting Company. The series follows the adventures of a late 20th-century New York City pizza delivery boy, Philip J...

, Teen Titans, Jets 'N' Guns
Jets'n'Guns
Jets'n'Guns is a 2D, side-scrolling shoot 'em up computer game released in late 2004 for Microsoft Windows by RakeInGrass software. In April 2006, a version for Mac OS X was released. In December 2006 an expansion, Jets'n'Guns Gold, was released...

, Mighty Morphin Power Rangers
Mighty Morphin Power Rangers
Mighty Morphin Power Rangers is an American live-action children's television series based on the 16th installment of the Japanese Super Sentai franchise, Kyōryū Sentai Zyuranger. Both the show and its related merchandise saw unbridled overnight success, catapulting into pop culture in mere months...

From Greek: Χρόνος (Chronos
Chronos
In Greek mythology, Chronos in pre-Socratic philosophical works is said to be the personification of time. His name in Greek means "time" and is alternatively spelled Chronus or Khronos.Chronos was imagined as an incorporeal god, serpentine in form, with three heads—those of a man, a bull, and...

, "time") + -ον (on, "elementary particle"). Alternate spellings: "chroniton." Associated with manipulating or traveling through time in Star Trek, as well as in Futurama, where it also has rejuvenation effects. A chronoton bomb in Teen Titans destroys chronotons in a given area, stopping that area's progression through time. A "chroniton rifle" is the most powerful weapon in Jets 'N' Guns.
Cinnabryl Mystara
Mystara
Mystara is a campaign setting for the Dungeons & Dragons fantasy role playing game. Although it has officially been dropped from production by its creators, many fans continue to develop and evolve this fantasy setting jointly, continuing its original theme of group development.-Development:It...

 Dungeons & Dragons
Dungeons & Dragons
Dungeons & Dragons is a fantasy role-playing game originally designed by Gary Gygax and Dave Arneson, and first published in 1974 by Tactical Studies Rules, Inc. . The game has been published by Wizards of the Coast since 1997...

A glowing red magical metal that temporarily halts the Red Curse created by vermeil. Depleted cinnabryl is called red steel, and is used for weaponry and armour. Not to be confused with the real-world mercury
Mercury (element)
Mercury is a chemical element with the symbol Hg and atomic number 80. It is also known as quicksilver or hydrargyrum...

 ore cinnabar
Cinnabar
Cinnabar or cinnabarite , is the common ore of mercury.-Word origin:The name comes from κινναβαρι , a Greek word most likely applied by Theophrastus to several distinct substances...

.
Claudia Last Exile
Last Exile
is a Japanese animated television series created by Gonzo. It featured a production team led by director Koichi Chigira, character designer Range Murata, and production designer Mahiro Maeda. The three had previously worked together in Blue Submarine No. 6, one of the first CG anime series...

An element used to power vanships and larger airships. It glows a light blue and is found naturally in solid form. However, while in liquid form, it generates an anti-gravity field when put through certain processes, which allows the aforementioned ships to fly. Its solid form is also used as a unit of currency, simply called a claudia.
Collapsium H. Beam Piper
H. Beam Piper
Henry Beam Piper was an American science fiction author. He wrote many short stories and several novels. He is best known for his extensive Terro-Human Future History series of stories and a shorter series of "Paratime" alternate history tales.He wrote under the name H. Beam Piper...

's Terro-Human Future History stories
Collapsed matter (i.e., no longer possessing separate electron shells) plated in extremely thin layers (a "micro-microinch" being typical) onto more conventional metals and used as shielding for spacecraft and reactors. May refer to degenerate matter
Degenerate matter
Degenerate matter is matter that has such extraordinarily high density that the dominant contribution to its pressure is attributable to the Pauli exclusion principle. The pressure maintained by a body of degenerate matter is called the degeneracy pressure, and arises because the Pauli principle...

 or neutronium
Neutronium
Neutronium is a proposed name for a substance composed purely of neutrons. The word was coined by scientist Andreas von Antropoff in 1926 for the conjectured "element of atomic number zero" that he placed at the head of the periodic table...

. No direct relationship to the same term used in the works of Wil McCarthy
Wil McCarthy
Wil McCarthy is a science fiction novelist, Chief Technology Officer for Galileo Shipyards , and the science columnist for Syfy...

.
Colour out of space
Colour out of space (species)
A colour out of space is a fictional extraterrestrial in the writings of the horror fiction author H. P. Lovecraft. It first appeared in Lovecraft's short story "The Colour Out of Space" .-Description:...

H. P. Lovecraft
H. P. Lovecraft
Howard Phillips Lovecraft --often credited as H.P. Lovecraft — was an American author of horror, fantasy and science fiction, especially the subgenre known as weird fiction....

's horror tale "The Colour Out of Space
The Colour Out of Space
"The Colour Out of Space" is a short story written by American fantasy author H. P. Lovecraft in March 1927. In the tale, an unnamed narrator pieces together the story of an area known by the locals as the "blasted heath" in the wild hills west of Arkham, Massachusetts...

"
Toxic and mutagen
Mutagen
In genetics, a mutagen is a physical or chemical agent that changes the genetic material, usually DNA, of an organism and thus increases the frequency of mutations above the natural background level. As many mutations cause cancer, mutagens are therefore also likely to be carcinogens...

ic element with apparent radioactive properties, of indescribable color and unknown spectrum, from a meteorite that lands in a field.
Corbomite Star Trek
Star Trek: The Original Series
Star Trek is an American science fiction television series created by Gene Roddenberry, produced by Desilu Productions . Star Trek was telecast on NBC from September 8, 1966, through June 3, 1969...

 (1966), "The Corbomite Maneuver"
Commonly believed to be fictional within the fictional Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

 universe. The supposedly non-existent substance was invented by Captain James T. Kirk
James T. Kirk
James Tiberius "Jim" Kirk is a character in the Star Trek media franchise. Kirk was first played by William Shatner as the principal lead character in the original Star Trek series. Shatner voiced Kirk in the animated Star Trek series and appeared in the first seven Star Trek movies...

 as part of a bluff to prevent the destruction of the U.S.S. Enterprise I
Starship Enterprise
The Enterprise or USS Enterprise is the name of several fictional starships, some of which are the focal point for various television series and films in the Star Trek franchise created by Gene Roddenberry. It is considered a name of legacy in the fleet...

 by another vessel. The material and device (both called "corbomite" in the bluff) supposedly redirect any destructive energy back to its source, destroying the attacker. The material has since appeared in various other series and video games set in the Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

 universe.
Cordite Metroid Prime
Metroid Prime
Metroid Prime is a video game developed by Retro Studios and Nintendo for the Nintendo GameCube, released in North America on November 17, 2002...

In its purest form, Cordite is a smokeless powder composed primarily of nitrocglicerine. An elaborate processing procedure transforms this powder into an extremely dense solid. Cordite is so strong, in fact, that in laboratory tests it consistently withstood direct hits from war-grade missiles. Cordite can only be weakened by simultaneous strikes with multiple missiles. Cordite can be destroyed by using a super missile; a charged energy blast with five combined missiles. Not to be confused with the real-world smokeless propellant compound
Cordite
Cordite is a family of smokeless propellants developed and produced in the United Kingdom from 1889 to replace gunpowder as a military propellant. Like gunpowder, cordite is classified as a low explosive because of its slow burning rates and consequently low brisance...

 of the same name.
Corrodium Ben 10
Ben 10
The Omnitrix was originally created by a Galvan named Azmuth. The Omnitrix was intended to allow beings to experience life as other species in order to bring understanding and foster peace in the universe....

An alien element that is capable of mutating certain lifeforms. Prolonged exposure is required for the mutations to be permanent.
Corrodium Zero Effect
Zero Effect
Zero Effect is a 1998 mystery film written and directed by Jake Kasdan . It stars Bill Pullman as "the world's most private detective" Daryl Zero and Ben Stiller as his assistant Steve Arlo....

Referenced when Zero is doing Gloria's taxes and she inquires about the fictional "Corrodium 3 deduction", which he explains pertains to "class 3 decay toxins, such as corrodium and maalgorium"
Cortexrulestheworldium Crash Team Racing
Crash Team Racing
Crash Team Racing is a racing video game developed by Naughty Dog and published by Sony Computer Entertainment for the PlayStation. The game was released in North America on September 30, 1999 and in Europe and Australia later the same year. It was re-released for the Sony Greatest Hits line-up in...

A chemical element discovered in the epilogue of Crash Team Racing. Recognized and named by the conceited scientist Doctor Neo Cortex, when he returned to scientific research. Little is known about it, besides its atomic Number, 117.
Cortosis Star Wars
Star Wars
Star Wars is an American epic space opera film series created by George Lucas. The first film in the series was originally released on May 25, 1977, under the title Star Wars, by 20th Century Fox, and became a worldwide pop culture phenomenon, followed by two sequels, released at three-year...

A lightsaber
Lightsaber
A lightsaber is a fictional weapon in the Star Wars universe, a "laser sword." It consists of a polished metal hilt which projects a blade of light about 1.33 metres long. The lightsaber is the signature weapon of the Jedi order and their Sith counterparts, both of whom can use them for close...

 resistant metal.
Crapcrapium Futurama: The Beast with a Billion Backs
Futurama: The Beast with a Billion Backs
Futurama: The Beast with a Billion Backs is an animated science-fiction comedy film, the second of the four Futurama straight-to-DVD films. The film was released in the United States and Canada on June 24, 2008, followed by a UK release on June 30, 2008 and an Australian release on August 6, 2008....

In a dispute about the relative hardness of Diamondium and Diamondillium, Crapcrapium is referred to as a disparaging comparator. The implication is that Crapcrapium is soft.
Croach Codex Alera
Codex Alera
Codex Alera is a fantasy book series by Jim Butcher. The series chronicles the coming-of-age of a young man named Tavi in the realm of Alera, an empire similar to Rome, on the world of Carna. Every Aleran has some degree of command over elemental forces or spirits called furies, save for Tavi, who...

A translucent, waxy substance created by the Vord, an alien race. It slowly absorbs and dissolves bio-matter, and is then itself a source of sustenance. To the Vord it is both air and food, and they provide spider-like creatures that tend to its constant maintenance. Croach is spread wherever Vord make their home.
Chogokin Z / Super-Alloy Z Mazinger Z
Mazinger Z
, known briefly as Tranzor Z in United States, is a Super Robot manga and anime series created by Go Nagai. The first manga version was serialized in Shueisha Weekly Shōnen Jump from October 1972 to August 1973, and it later continued in Kodansha TV Magazine from October 1973 to September 1974. In...

This is the metal utilized to construct the eponymous Super Robot
Super Robot
is a term used in manga and anime to describe a giant robot or mecha, with an arsenal of fantastic super-powered weapons, extreme resistance to damage unless the plot calls for it, sometimes transformable or combined from two or more robots and/or vehicles usually piloted by young, daring heroes,...

 of the anime series Mazinger Z. In the series, Chogokin Z is created from the newly-discovered element Japanium
Fictional elements, isotopes and atomic particles
This list contains chemical elements, materials, isotopes or atomic particle that exist primarily in works of fiction . No actual periodic elements end in "-ite", though many minerals have names with this suffix...

. Other variant metals include Chogokin New-Z, used to construct Great Mazinger
Great Mazinger
is a manga comic book and anime television series by manga artist Go Nagai, made as a direct continuation of the successful Mazinger Z series...

, and Chogokin New-Zα, which was the basis material for Mazinkaiser
Mazinkaiser (robot)
Mazinkaiser is a fictional robot from the anime and manga series of the same name, based on Go Nagai's Mazinger Z and featured in the 2001-2003 OVA series, Mazinkaiser and animated movie, Mazinkaiser: Deathmatch! Ankoku Daishogun. Within the story, Mazinkaiser was created by Professor Juzō Kabuto...

. The series' sequel Grendizer
Grendizer
is a super robot TV anime and manga created by manga artist Go Nagai. It is the third entry in the Mazinger trilogy. It was broadcasted on Japanese television from October 5, 1975, to February 27, 1977, and lasted 74 episodes...

 features an unrelated but still highly similar metal called Space Alloy Gren.

The term "chogokin
Chogokin
is Japanese for "Super Alloy" and is a fictitious material which first appeared in Go Nagai's Mazinger Z manga and anime. It was later adopted by Popy in 1972 as the name of a new line of die-cast metal robot and character toys sold in Japan...

" has since become a trademarked name for toys and models manufactured in Japan by Bandai
Bandai
is a Japanese toy making and video game company, as well as the producer of a large number of plastic model kits. It is the world's third-largest producer of toys . Some ex-Bandai group companies produce anime and tokusatsu programs...

. It is also informally and frequently used by collectors to describe toys with high die-cast metal content, or in a nostalgic sense toward those earlier Super Robot series and toys.
Chrysadamantium John C. Wright's The Golden Age Trilogy
The Golden Age (John C. Wright novel)
The Golden Age is a science fiction trilogy by the American writer John C. Wright. It consists of three books, The Golden Age, The Phoenix Exultant and The Golden Transcendence.-Plot introduction:...

A transuranic element used as a building material; can only be damaged through the use of black holes and antimatter
Antimatter
In particle physics, antimatter is the extension of the concept of the antiparticle to matter, where antimatter is composed of antiparticles in the same way that normal matter is composed of particles...

Cryazin Eleventh Hour
Eleventh Hour (U.S. TV series)
Eleventh Hour is an American science-based drama television series, which is based on the 2006 British series of the same name. The series originally ran on CBS from October 9, 2008 to April 2, 2009 and aired on Thursdays at 10 pm . The series was a joint venture between Jerry Bruckheimer...

Featured in Episode 1.6 ("Frozen"), it is an organic compound with phosphorus, boron and oxygen that reacts with itself endothermically in the presence of potassium.
Crystallium Robert L. Forward's novel Dragon's Egg
Dragon's Egg
Dragon's Egg is a hard science fiction novel written by Robert L. Forward and published in 1980. In the story, Dragon's Egg is a neutron star with a surface gravity 67 billion times that of Earth, and inhabited by cheela, intelligent creatures that have the volume of sesame seeds and live a...

A crystallized compound of degenerate matter, part of the internal chemistry of the cheela, used by them to form bone-like structures.
Cybertronium Transformers
Transformers
A transformer is a device that transfers electrical energy from one circuit to another by magnetic coupling.Transformer may also refer to:* ASUS Eee Pad Transformer, an Android 3.2 Honeycomb tablet computer manufacturer by Asus...

 Original Series
A quantum metal, useless by itself (only found on Cybertron-like planets, and possibly artificially created by the Quintessons), that, when alloyed with other metals, creates the dimensional storage space useful for transformations—extra supplies, components, weaponry, or the like. The Dinobots were created without this metal, which explains their huge humanoid bodies.
Daeyalt RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

A turquoise ore, mined by human slaves of the vampyres. All that is known about it is that the ore had "some magical hoobery-joobery on it" and that "those vampyre types are after the hoobery-joobery".
Dalekanium Doctor Who
Doctor Who
Doctor Who is a British science fiction television programme produced by the BBC. The programme depicts the adventures of a time-travelling humanoid alien known as the Doctor who explores the universe in a sentient time machine called the TARDIS that flies through time and space, whose exterior...

A metal used by the Dalek
Dalek
The Daleks are a fictional extraterrestrial race of mutants from the British science fiction television series Doctor Who. Within the series, Daleks are cyborgs from the planet Skaro, created by the scientist Davros during the final years of a thousand-year war against the Thals...

s as a component of their armoured casings. Also, named in an alternate reality
Parallel universe (fiction)
A parallel universe or alternative reality is a hypothetical self-contained separate reality coexisting with one's own. A specific group of parallel universes is called a "multiverse", although this term can also be used to describe the possible parallel universes that constitute reality...

, as an unstable explosive powerful enough to penetrate those casings.
Dark Iron World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

A metal found in the Burning Steppes and the Searing Gorge. Favoured mineral of the Dark Iron dwarves and the Blackrock clan of Orcs. To be worked with, the use of the Dark Forge and the Dark Anvil, within the Blackrock Depths, is required.
Dark Ore The Legend of Zelda: Spirit Tracks
The Legend of Zelda: Spirit Tracks
The Legend of Zelda: Spirit Tracks, released as in Japan, is the fifteenth installment of Nintendo's The Legend of Zelda series. Developed by Nintendo for the Nintendo DS handheld game console, it was released worldwide throughout December 2009 after Nintendo president Satoru Iwata announced the...

Dark Matter Futurama
Futurama
Futurama is an American animated science fiction sitcom created by Matt Groening and developed by Groening and David X. Cohen for the Fox Broadcasting Company. The series follows the adventures of a late 20th-century New York City pizza delivery boy, Philip J...

Dark matter is the biological waste of Nibblonians. First introduced in "Love's Labors Lost in Space," the extremely dense black material, usually clumped in perfect spheres, is the primary source of power in the 30th century. It also exists in another form, dark matter oil, in "The Birdbot of Ice-Catraz
The Birdbot of Ice-Catraz
"The Birdbot of Ice-Catraz" is the fifth episode in the third production season of Futurama. It originally aired in North America on March 4, 2001 as the ninth episode of the third season. The episode was written by Dan Vebber and directed by James Purdum...

" a dark matter oil spill on Pluto caused the penguin population to become ultra-fertile. In the movie Bender's Game, it is explained that all dark matter is linked by two crystals that give it its properties as fuel. "Dark Matter
Dark matter
In astronomy and cosmology, dark matter is matter that neither emits nor scatters light or other electromagnetic radiation, and so cannot be directly detected via optical or radio astronomy...

" is also a legitimate term in cosmology.
Darksteel Magic: The Gathering
Magic: The Gathering
Magic: The Gathering , also known as Magic, is the first collectible trading card game created by mathematics professor Richard Garfield and introduced in 1993 by Wizards of the Coast. Magic continues to thrive, with approximately twelve million players as of 2011...

A dull, dark grey metal that is found on the metal plane of Mirrodin. Constructions built out of darksteel are effectively indestructible. Notable constructions include the Darksteel Colossus and the Darksteel Reactor.
Denzium Metroid Prime
Metroid Prime
Metroid Prime is a video game developed by Retro Studios and Nintendo for the Nintendo GameCube, released in North America on November 17, 2002...

A durable mineral capable to being destroyed with a power bomb (similar to Bendizium)
Destinium My Sims In My Sims Agents, destinium is a rare, but worthless, crystal. However, Morcucorp is secretly mining it from a mine underneath DJ Candy's Club. They plan to use Candy's Radio towers to generate high frequency electromagnetic waves for the transmutation
Transmutation
Transmutation may refer to:*Biological transmutation, the claim that nuclear transmutation occurs within living organisms*Dimensional transmutation, a physical mechanism that transforms a pure number into a parameter with a dimension...

 of destinium into fortunate.
Destronium Transformers Animated A liquid that helps Cybertronians repair themselves. It is plentiful on Cybertron
Cybertron
Cybertron is a fictional planet, the homeworld of the Transformers in the various fictional incarnations of the metaseries and toyline by Hasbro. In the Japanese series, the planet is referred to as "Cybertron" pronounced as セイバートロン Seibātoron...

, but on Earth, humans were only able to synthesize small samples. At high speeds, destronium can get very volatile and would take out half a city the size of Detroit if it detonates.
Deutronium Lost in Space
Lost in Space
Lost in Space is a science fiction TV series created and produced by Irwin Allen, filmed by 20th Century Fox Television, and broadcast on CBS. The show ran for three seasons, with 83 episodes airing between September 15, 1965, and March 6, 1968...

A substance with many uses, refined into a flammable liquid which the Robinsons required as fuel for the Jupiter 2. It is mined as small white pebbles by either drilling or pumping out of the ground. Some species consume deutronium as food, including the Cyclamen
Cyclamen
Cyclamen is a genus of 23 species of perennials growing from tubers, valued for their flowers with upswept petals and variably patterned leaves...

 and the People of the Green Mist.
Diamondillium Futurama: The Beast with a Billion Backs
Futurama: The Beast with a Billion Backs
Futurama: The Beast with a Billion Backs is an animated science-fiction comedy film, the second of the four Futurama straight-to-DVD films. The film was released in the United States and Canada on June 24, 2008, followed by a UK release on June 30, 2008 and an Australian release on August 6, 2008....

A substance harder than anything in this universe. The only substance that rivals its hardness is diamondium, though odds are it may be the same substance under a different name.
Diamondium Futurama: The Beast with a Billion Backs
Futurama: The Beast with a Billion Backs
Futurama: The Beast with a Billion Backs is an animated science-fiction comedy film, the second of the four Futurama straight-to-DVD films. The film was released in the United States and Canada on June 24, 2008, followed by a UK release on June 30, 2008 and an Australian release on August 6, 2008....

A substance harder than anything in this universe. The only substance that rivals its hardness is diamondillium, though odds are it may be the same substance under a different name.
Dilithium Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

A fictional crystalline mineral, in the universe of Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

, that is used to regulate the anti-matter-powered warp drives that allow starships to travel faster than light. (Although dilithium
Dilithium
Dilithium, Li2, is a diatomic molecule comprising two lithium atoms covalently bonded together. Li2 is known in the gas phase. It has a bond order of 1, an internuclear separation of 267.3 pm and a bond energy of 101 kJ mol−1....

 is a real molecule, it is a gas with none of the properties of the fictional crystals, and the writers were unaware of its existence.)
Dilustel DC Comics
DC Comics
DC Comics, Inc. is one of the largest and most successful companies operating in the market for American comic books and related media. It is the publishing unit of DC Entertainment a company of Warner Bros. Entertainment, which itself is owned by Time Warner...

Captain Atom's
Captain Atom
Captain Atom is a fictional comic book superhero that has existed in three basic incarnations. Created by writer Joe Gill and artist/co-writer Steve Ditko, he first appeared in Space Adventures #33 . Captain Atom was created for Charlton Comics but was later acquired by DC Comics and revised for...

 metallic "skin" is composed of a portion of the alien being known as Silver Shield, and is called Dilustel. Pieces of the alien's metal body were used in Project Atom, and on later subjects like Major Force
Major Force
Major Force is a fictional character in the DC Comics universe. He is a supervillain that first appeared in Captain Atom vol. 3, #12 .-Early life:...

 and Bombshell
Bombshell (DC Comics)
Bombshell is a fictional character, a comic book superhero published by DC Comics. She first appeared in Teen Titans vol. 3, #38, and was created by Geoff Johns and Tony Daniel.-Fictional character biography:...

. The metal is almost totally indestructible. Only X-Ionizer technology can cut the metal and the magical guns of the Crimson Avenger
Crimson Avenger
The Crimson Avenger is the name of three separate fictional characters, superheroes who exist in the DC Comics universe.-Lee Walter Travis:The original Crimson Avenger made his first published appearance in Detective Comics #20...

 were able to crack his skin. Breaking through it causes Captain Atom to Quantum Jump as if he had absorbed too much energy.
Diolacton The Quiet American
The Quiet American
The Quiet American is an anti-war novel by British author Graham Greene, first published in United Kingdom in 1955 and in the United States in 1956. It was adapted into films in 1958 and 2002. The book draws on Greene's experiences as a war correspondent for The Times and Le Figaro in French...

A fictional ingredient in making plastic explosives. When asked about the compound, the American supplier claims, Diolacton is a milk-based plastic. We use it in making the frames for eyeglasses.
Dragon RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

In the MMORPG
MMORPG
Massively multiplayer online role-playing game is a genre of role-playing video games in which a very large number of players interact with one another within a virtual game world....

 RuneScape, one of the strongest metals. It has a blood red appearance and usually adorns white horns or black paint and other features. It seems to have been forged by a race of elder dragons called the dragonkin.
Dragonbane AdventureQuest
AdventureQuest
AdventureQuest is an online flash based single-player RPG developed by Artix Entertainment in 2002. As of June 14, 2010, aq.battleon.com, the game's hosting website, and www.battleon.com, the game's homepage, have an Alexa rating of 3,041...

A mineral which is poisonous to dragons. It is the material that the legendary Dragon Blade is made of.
Duodecaplylatomate E. E. Smith
E. E. Smith
Edward Elmer Smith, Ph.D., also, E. E. Smith, E. E. "Doc" Smith, Doc Smith, "Skylark" Smith, and Ted was a food engineer and early science fiction author who wrote the Lensman series and the Skylark series, among others...

's Lensman series
An extremely powerful atomic explosive, usually referred to by the shortened name "duodec". Its most unusual property is that its blast effects proceed at the speed of light, rather than at conventional shock wave
Shock wave
A shock wave is a type of propagating disturbance. Like an ordinary wave, it carries energy and can propagate through a medium or in some cases in the absence of a material medium, through a field such as the electromagnetic field...

 speed.
Duralinium Doctor Who
The Nightmare of Black Island
The Nightmare of Black Island is a BBC Books original novel written by Mike Tucker and based on the long running science fiction television series Doctor Who. It was published on September 21, 2006, alongside The Art of Destruction and The Price of Paradise...

A mineral used in the construction of buildings and other structures, especially space ship hulls are made from toughened duralinium. It is highly abundant on the planet Uxarieus.
Durallium Elite/The Dark Wheel Spacecraft in the computer Game Elite and the short story The Dark Wheel (based on Elite) by Robert Holdstock were made of this material after it was treated by being time stressed. It was the only known material able to withstand the rigors of passing through Witch-space, the method of interstellar travel used in the game and novella.
Duralloy Master of Orion series Duralloy Armor is the sixth strongest type of armor in the Master of Orion series.

Duralloy is also featured in some role-playing games, namely Metamorphosis Alpha
Metamorphosis Alpha
Metamorphosis Alpha is a science fiction role-playing game. It was created by James M. Ward and originally produced by TSR, the publisher of Dungeons & Dragons...

 and Gamma World
Gamma World
Gamma World is a science fantasy role-playing game, originally designed by James M. Ward and Gary Jaquet, and first published by TSR in 1978. It borrowed heavily from James M. Ward's earlier product, Metamorphosis Alpha.-Setting:...

. In both of these games, Duralloy has properties vary similar to Adamantium from the Marvel Universe
Marvel Universe
The Marvel Universe is the shared fictional universe where most comic book titles and other media published by Marvel Entertainment take place, including those featuring Marvel's most familiar characters, such as Spider-Man, the Hulk, the X-Men, and the Avengers.The Marvel Universe is further...

. In Gamma World
Gamma World
Gamma World is a science fantasy role-playing game, originally designed by James M. Ward and Gary Jaquet, and first published by TSR in 1978. It borrowed heavily from James M. Ward's earlier product, Metamorphosis Alpha.-Setting:...

, Duralloy can also be found in special containment drums, that maintains it in a molten state by a magnetic field. Once the seal is broken, the liquid metal must be used quickly (about a minute) before it cools down and becomes permanently solid. The cool down is rapid, and absorbs background heat.
Duranium Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

Spacecraft hulls are made from the super metal alloys duranium and tritanium.
Durasteel Star Wars
Star Wars
Star Wars is an American epic space opera film series created by George Lucas. The first film in the series was originally released on May 25, 1977, under the title Star Wars, by 20th Century Fox, and became a worldwide pop culture phenomenon, followed by two sequels, released at three-year...

Durasteel is one of the most used alloys in the Star Wars universe. Its qualities include: being very flexible, resistant to heat and cold, monumentally physically stress resistant, and the color brown. Because of these it is the most common material for the manufacture of spacecraft hulls.
Dureum E. E. Smith
E. E. Smith
Edward Elmer Smith, Ph.D., also, E. E. Smith, E. E. "Doc" Smith, Doc Smith, "Skylark" Smith, and Ted was a food engineer and early science fiction author who wrote the Lensman series and the Skylark series, among others...

's Lensman series
Artificial, ultra-dense metal, the only known material that will not occupy the same space as other matter (coming from elsewhere) in a hyper-spatial tube, hence used in armor, weapons, etc. that might encounter anyone or anything a tube. Invented by the Eddorians and used in their exploration of other universes, given to their subject races in the Lensman universe, and eventually discovered and copied by the Galactic Patrol.
Durium The Infinite Atom
The Incredible Planet
The Incredible Planet is a science fiction fix-up novel by American author John W. Campbell, Jr.. It was published in 1949 by Fantasy Press in an edition of 3,998 copies. The novel is a collection of three linked novelettes that were not accepted for the magazine Astounding...

Durium was an ultra-strong, extremely dense, infusible sapphire blue alloy of made from resistium and other "ultra-elements" (which had an atomic structure consisting of a nucleus of "negatrons," orbital protons and without any electrons present in the atom at all), in The Infinite Atom by John W. Campbell, Jr. Durium would also be featured in several of the later works of E.E. "Doc" Smith.
Dwarfstar Alloy/Hull Metal Various Ships' hulls from various sci-fi novels starting in the 1920s were said to be built using this ultra-strong material. It is an extremely condensed state of matter, i.e. Neutron Star material, and used as a plot device to make nearly invulnerable ships without having to invent some implausible new materials.
Eitr
Eitr
Eitr is a mythical substance in Norse mythology. This liquid substance is the origin of all living things, the first giant Ymir was conceived from eitr...

Norse Mythology
Norse mythology
Norse mythology, a subset of Germanic mythology, is the overall term for the myths, legends and beliefs about supernatural beings of Norse pagans. It flourished prior to the Christianization of Scandinavia, during the Early Middle Ages, and passed into Nordic folklore, with some aspects surviving...

, Tomb Raider Underworld
A bright blue liquid, where life comes from.
Electromatter Futurama: The Beast with a Billion Backs
Futurama: The Beast with a Billion Backs
Futurama: The Beast with a Billion Backs is an animated science-fiction comedy film, the second of the four Futurama straight-to-DVD films. The film was released in the United States and Canada on June 24, 2008, followed by a UK release on June 30, 2008 and an Australian release on August 6, 2008....

Described by Hubert J. Farnsworth
Hubert J. Farnsworth
Professor Hubert J. Farnsworth, or simply The Professor, is a fictional character in the American animated television series Futurama. He is voiced by Billy West using a combination of impressions of Burgess Meredith and Frank Morgan. Farnsworth is the proprietor of the Planet Express delivery...

 as "Matter's Badass Grandma". A pink substance that mainly exists in the dimension on the other side of the anomaly; can only be broken or punctured by more electromatter. The tentacles of the planet-monster, Yivo, are made from electromatter.
Element 99 Singularity
Singularity (video game)
Singularity received generally favorable reviews. On review aggregator website Metacritic, Singularity received a rating of 76 for the PC and Xbox 360 versions, and 77 for the PlayStation 3 version...

Also known as E99, the Element 99 was a powerful source of energy. Scientific research on the element discovered the E99's ability to alter time, and thus, the substance was used by Dr. Viktor Barisov to create the TMD, or Time Manipulation Device.
Element 115 Tomb Raider III
Tomb Raider III
Tomb Raider III is an action-adventure video game developed by Core Design and published by Eidos Interactive. It is the third instalment in the Tomb Raider series, and the sequel to Tomb Raider II...

A turquoise element named by Area 51, Element 115 came down to Earth on a meteor which landed in Antarctica. The element was worshipped by the Polynesian's ancestors who once lived there (naming the place "Kuma-Kuma"), until their sixth leader Mauki was born without a face, as a mutilating reaction to the material. The people then fled to Polynesia. The artefact can shoot powerful turquoise blasts, and can also be used to speed up and personally alter evolution, even evolving an already developed life form.
Element 115 Dark Reign: The Future of War Discovered in the outer planets in the early days of exploration of the solar system, Element 115 was used by Alpheus Togra, founder and head of the Togra Foundation in his experiments where he successfully converted the angular momentum of electrons directly into mass. It is unique in that it was the only element with an atomic weight greater than 92 to not undergo spontaneous fission immediately.
Element 115 Call of Duty: Zombies A dark red element, and is exclusive to the Nazi Zombie backstory. It arrived on Earth on meteors, including one in Japan where the third Nazi Zombie map is set, the meteors emit strange noise and electrical pulses. Element 115 has been used to power most of the out-of-place high tech such as the teleporters, and is thought to have created the original zombies.
Element 115 Seven Days This transuranic element salvaged from the Roswell crash by the scientists behind Operation Backstep generates a time distortion field around the Backstep Chronosphere, displacing it through space and time.
Element 152 DC Comics
DC Comics
DC Comics, Inc. is one of the largest and most successful companies operating in the market for American comic books and related media. It is the publishing unit of DC Entertainment a company of Warner Bros. Entertainment, which itself is owned by Time Warner...

Element created by Mon-El by combining gold
Gold
Gold is a chemical element with the symbol Au and an atomic number of 79. Gold is a dense, soft, shiny, malleable and ductile metal. Pure gold has a bright yellow color and luster traditionally considered attractive, which it maintains without oxidizing in air or water. Chemically, gold is a...

, silver
Silver
Silver is a metallic chemical element with the chemical symbol Ag and atomic number 47. A soft, white, lustrous transition metal, it has the highest electrical conductivity of any element and the highest thermal conductivity of any metal...

 and iron
Iron
Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal in the first transition series. It is the most common element forming the planet Earth as a whole, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust...

. It has anti-gravity properties and was eventually used in rings, allowing members of the Legion of Super-Heroes
Legion of Super-Heroes
The Legion of Super-Heroes is a fictional superhero team in the 30th and 31st centuries of the . The team first appears in Adventure Comics #247 , and was created by Otto Binder and Al Plastino....

 to fly. Arm Fall Off Boy
Arm Fall Off Boy
Arm Fall Off Boy is a DC Comics superhero from the 30th century. His first appearance was in Secret Origins Vol. 2 #46, , he was drawn by Curt Swan...

 is thought to have gained his superpowers through mishandling this element.
Element 250 (Sturginium) Dystopian wars
Dystopian wars
Dystopian Wars is a steampunk miniature wargame published by Spartan Games. It is set in an alternate timeline in the year 1870 when a number of technological discoveries have taken place that didn't occur in reality.- Background :...

Discovered in an Antarctic crevasse, this powers the world in 1870. It has numberless strange qualities; hardening tin twentyfold, lightening steel twentyfold, whilst on the other hand being able to soften artillery shells and human skeletons, it can be used in reactors and also has teleportational qualities. Leakages are known to create interspacial portals, which can link together to form mildly dangerous singularities, and if a vehicle's core explodes, it may teleport it "into the ether", from whence it is not known whether recovery is possible.
Element X Ben 10
Ben 10
The Omnitrix was originally created by a Galvan named Azmuth. The Omnitrix was intended to allow beings to experience life as other species in order to bring understanding and foster peace in the universe....

Element of extraterrestrial origin that, when combined with a precise mixture of an unspecified form of iron ore at high temperatures, has enough explosive capacity to destroy an entire solar system
Solar System
The Solar System consists of the Sun and the astronomical objects gravitationally bound in orbit around it, all of which formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago. The vast majority of the system's mass is in the Sun...

.
Element Zero Mass Effect
Mass Effect
Mass Effect is an action role-playing game developed by BioWare for the Xbox 360 and Microsoft Windows by Demiurge Studios. The Xbox 360 version was released worldwide in November 2007 published by Microsoft Game Studios...

Also known as eezo, generated when solid matter is affected by the energy of a star going supernova. When subjected to an electrical current it produces a field that increases or decreases the mass of an object. Used in a number of applications, the most noticeable being FTL travel. Humans exposed to this element while still in the womb may gain the ability to generate their own fields and are known as biotics.
Elementium Max Steel: Forces of Nature
Max Steel: Forces of Nature
Max Steel: Forces of Nature is a 2005 direct-to-DVD film based on the tv series and action figure line.-Plot:In this movie, Jefferson Smith gets to Bio-Constrictor's base. There he finds several Bio-Con's clones in stasis, most of them failed experiments, with one exception: one of them, Elementor,...

Isotopes giving power over the classical element
Classical element
Many philosophies and worldviews have a set of classical elements believed to reflect the simplest essential parts and principles of which anything consists or upon which the constitution and fundamental powers of anything are based. Most frequently, classical elements refer to ancient beliefs...

s Earth, Water, Wind, and Fire.
Elementium World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

An element that came from the Elemental Plane, thus making it very rare in Azeroth. It is capable of channeling elemental energies. It is used to craft special artefacts such as Thunderfury, Blessed Blade of the Windseeker.
Elephantanium Duck Dodgers
Duck Dodgers
Duck Edgar Dumas Aloysius Eoghain Dodgers is the metafictional star of a series of cartoons produced by Warner Bros. He is actually the famous cartoon star Daffy Duck, cast in the role of an intergalactic future hero....

A form of rock that mutates whoever touchs it. The person remains what he is mutated into as long as he is touching it. It may make the person addicted to it when they look at it.
Elephantigen The Science of Discworld
The Science of Discworld
The Science of Discworld is a 1999 book by novelist Terry Pratchett and popular science writers Ian Stewart and Jack Cohen. Two sequels, The Science of Discworld II: The Globe and The Science of Discworld III: Darwin's Watch, have been written by the same authors.The book alternates between a...

A material which according to the Unseen University
Unseen University
The Unseen University is a school of wizardry in Terry Pratchett's Discworld series of fantasy novels. Located in the city of Ankh-Morpork, the UU is staffed by a faculty composed of mostly indolent and inept old wizards. The university's name is a pun on the Invisible College...

 wizards makes up the four world-bearing elephants: Berilia, Tubul, Great T'phon and Jerakeen. Since they determine with a simple test that it does not exist in Roundworld
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...

, they are probably correct.
Elerium-115 UFO: Enemy Unknown The element, atomic number 115, upon which all alien power systems are based. It facilitates space flight by emitting gravity waves under particle bombardment. Used as a fuel for advanced craft, and to power weapons and devices based on alien technology.
Emperium Ragnarok Online
Ragnarok Online
Ragnarok Online , often referred to as RO, is a massively multiplayer online role-playing game or MMORPG created by GRAVITY Co., Ltd. based on the manhwa Ragnarok by Lee Myung-jin. It was first released in South Korea on 31 August 2002 for Microsoft Windows and has since been released in many other...

A crystalline element which is to be broken as a condition of winning a castle in guild wars. 'Merely owning this gloriously resplendent gem is said to be a sign of being chosen by fate to wield great power.'
Endurium Starflight
Starflight
Starflight is a computer game published by Electronic Arts and developed by Binary Systems in 1986. Originally developed for DOS and Tandy, it was later released for the Amiga, Atari ST, Macintosh and Commodore 64...

, Deadlock
Crystalline element discovered during an archeological dig powering an ancient starship
Starship
A starship or interstellar spacecraft is a theoretical spacecraft designed for traveling between the stars, as opposed to a vehicle designed for orbital spaceflight or interplanetary travel....

 and used to power other starships based on the discovered starships's technology. An entire planet
Planet
A planet is a celestial body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.The term planet is ancient, with ties to history, science,...

 composed of the element is discovered moving through the galaxy
Galaxy
A galaxy is a massive, gravitationally bound system that consists of stars and stellar remnants, an interstellar medium of gas and dust, and an important but poorly understood component tentatively dubbed dark matter. The word galaxy is derived from the Greek galaxias , literally "milky", a...

 triggering solar flares and wiping out all life in the solar systems it passes through. Eventually, the element is discovered to be a sentient
Sentience
Sentience is the ability to feel, perceive or be conscious, or to have subjective experiences. Eighteenth century philosophers used the concept to distinguish the ability to think from the ability to feel . In modern western philosophy, sentience is the ability to have sensations or experiences...

 life form. In the Deadlock serier, it is an element with 5x the potential of iron and the same power of steel. It may be processed into Tridium.
Energon Transformers A highly radioactive, highly unstable material that can by synthesized through refinement of other materials, though the process to do this is unknown, and naturally-occurring energon does exist. Energon can be either crystalline or liquid in form, and can appear in a variety of colors.
Energized Protodermis Bionicle
Bionicle
Bionicle is a line of toys by the LEGO Group marketed primarily for 5- to 16-year-olds. The line was launched on December 30, 2000 in Europe and June/July 2001 in Canada and the United States. "Bionicle" is a portmanteau constructed from the words "biological" and "chronicle"...

Energized Protodermis is a sentient substance which originated from Spherus Magna, the home planet of the Great Beings. It can manifest a bipedal form in any source of the substance in the universe. It is also the "cure" for the Antidermis controlling a living being.
Eternium DC Comics
DC Comics
DC Comics, Inc. is one of the largest and most successful companies operating in the market for American comic books and related media. It is the publishing unit of DC Entertainment a company of Warner Bros. Entertainment, which itself is owned by Time Warner...

An ore that is said to be a major source of magic
Magic (paranormal)
Magic is the claimed art of manipulating aspects of reality either by supernatural means or through knowledge of occult laws unknown to science. It is in contrast to science, in that science does not accept anything not subject to either direct or indirect observation, and subject to logical...

 power. Comes from only one location: the Rock of Eternity
Rock of Eternity
A feature of Captain Marvel stories, the Rock of Eternity is apparently situated at the exact centre of space and time, meaning that from there different locations in space-time can be accessed, along with other dimensions. It was from fragments of Heaven and Hell. It is home to the Wizard Shazam...

, the home of the wizard Shazam
Shazam (comics)
Shazam is a comic book character created by Bill Parker and C. C. Beck for Fawcett Comics. He is an ancient sorcerer who gives young Billy Batson the power to transform into the superhero Captain Marvel...

 and guarded by all members of the Marvel family
Marvel Family
The Marvel Family is a group of fictional characters, a team of superheroes in the Fawcett Comics and DC Comics universes. Created in 1942 by writer Otto Binder and Fawcett artists C. C...

. The Rock was destroyed in the 30th century, causing the fourth Captain Marvel
Thunder (comics)
Thunder is a fictional superhero published by DC Comics. She was first described in Green Arrow vol. 2 #26 and first appeared the next month in Outsiders vol. 3 #1...

 to search for the pieces. Following the explosion, however, eternium proved to be harmful to her, in a manner comparable with Kryptonite
Kryptonite
Kryptonite is a fictional material from the Superman mythos —the ore form of a radioactive element from Superman's home planet of Krypton. It is famous for being the ultimate physical weakness of Superman, and the word kryptonite has since become synonymous with an Achilles' heel —the one weakness...

's effect on Kryptonians. Also referenced in World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

 as the most difficult lockbox in the game, only dropped in high level dungeons and can only be opened by experienced lockpickers. Is also a metal rarely found in all mineral veins in Outland. A material called eternium also appeared in the He-Man and the Masters of the Universe cartoon, where it was the material He-Man's breastplate and harness ware made of, serving to magnify his strength.
Etherion Fairy Tail
Fairy Tail
is a Japanese manga series written and illustrated by Hiro Mashima. It has been serialized in Weekly Shōnen Magazine since August 23, 2006, and has been published by Kodansha in 29 tankōbon volumes . An ongoing anime produced by A-1 Pictures and Satelight was released in Japan on October 12, 2009,...

, Rave Master
Rave Master
, is a manga series written and illustrated by Hiro Mashima. The manga was serialized in Shōnen Magazine from July 1999 through July 2005, and published in thirty-five tankōbon by Kodansha. The manga series was licensed for an English release in North America by Tokyopop until Kodansha allowed...

A crystal that is said to be indestructible. This crystal has the power to turn nothing into something and something into nothing.

In Fairy Tail, Etherion is a powerful crystal used to destroy. In Rave Master, Etherion is a power that Resha harbours, she can create things from nothing and she can also destroy things.
Etherium /
Aetherium /
Volucite /
Hikouseki /
Levitation Stone
Castle in the Sky
Castle in the Sky
All compositions by Joe Hisaishi.#"The Girl Who Fell from the Sky" – 2:27#"Morning in Slag Ravine" – 3:04#"A Fun Brawl " – 4:27#"Memories of Gondoa" – 2:46#"Discouraged Pazu" – 1:46#"Robot Soldier " – 2:34...

, Magic: The Gathering
Magic: The Gathering
Magic: The Gathering , also known as Magic, is the first collectible trading card game created by mathematics professor Richard Garfield and introduced in 1993 by Wizards of the Coast. Magic continues to thrive, with approximately twelve million players as of 2011...

A bright blue mineral present in small amounts in all rocks in the location Castle in the Sky takes place in. Pure crystals of etherium, which are very difficult to manufacture, are capable of repelling gravity to a degree, causing objects to float. It also stimulates plant growth.

In Magic: The Gathering, etherium is an extremely rare metal created by the sphinx Crucius the Mad. On the shard Esper, vedalken wizards strive to infuse everything with etherium. The planeswalker Tezzeret the Seeker constructs his entire right arm out of pure eetherium before his spark ignited, thus enabling him to fuel his mages abilities until his spark ignited, which then served to make him stronger still.
The Levitation Stone (飛行石), "Hikouseki" in romaji, is speculated to be its English version "Volucite".
Exsidian Bionicle
Bionicle
Bionicle is a line of toys by the LEGO Group marketed primarily for 5- to 16-year-olds. The line was launched on December 30, 2000 in Europe and June/July 2001 in Canada and the United States. "Bionicle" is a portmanteau constructed from the words "biological" and "chronicle"...

An abundant metal found near the ice-village of Iconox on Planet Bara Magna. It is valued for its endurance and can withstand sand erosion and rust better than other metals. It is used by Glatorians to coat their blades and strengthen them.
Faidon Skylark of Space
Skylark (series)
Skylark is a science fiction/space opera series by the late E. E. "Doc" Smith. The first book The Skylark of Space is revolutionary in the genre, in which a scientist discovers a space-drive, builds a starship, and flies off with three companions to encounter alien civilizations and fight a...

 book series
Self-luminous blue crystals which are created out of crystallized energy in supernova explosions and can only be wrought in the core of a white dwarf
White dwarf
A white dwarf, also called a degenerate dwarf, is a small star composed mostly of electron-degenerate matter. They are very dense; a white dwarf's mass is comparable to that of the Sun and its volume is comparable to that of the Earth. Its faint luminosity comes from the emission of stored...

. They can be used as jewels but can even be shaped into containers for neutronium.
Fel Iron World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

Iron which has been corrupted by demons. Found in the shattered remnants of the planet Draenor, now known as Outland. Exclusive to The Burning Crusade
Feldon Blake's 7
Blake's 7
Blake's 7 is a British science fiction television series produced by the BBC for its BBC1 channel. The series was created by Terry Nation, a prolific television writer and creator of the Daleks for the television series Doctor Who. Four series of Blake's 7 were produced and broadcast between 1978...

In the fourth series episode "Games" Feldon is identified as the hardest known and currently most valuable substance in the universe. It is found in the asteroid belt
Asteroid belt
The asteroid belt is the region of the Solar System located roughly between the orbits of the planets Mars and Jupiter. It is occupied by numerous irregularly shaped bodies called asteroids or minor planets...

 and on several insignificant planets. It is extremely rare, and was prized as a precious stone until its use as an energy concentrator was discovered. Its crystal
Crystal
A crystal or crystalline solid is a solid material whose constituent atoms, molecules, or ions are arranged in an orderly repeating pattern extending in all three spatial dimensions. The scientific study of crystals and crystal formation is known as crystallography...

s are the basis of the revolutionary if potentially unstable and explosive Feldon power systems.
Felsteel World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

A powerful alloy created from Fel Iron and Eternium.
Feminum Wonder Woman
Wonder Woman (TV series)
Wonder Woman is an American television series based on the DC Comics comic book superhero of the same name. Starring Lynda Carter as Wonder Woman/Diana Prince and Lyle Waggoner as Steve Trevor, the show originally aired from 1975 to 1979....

 TV Series
An element found only on Paradise Island
Themyscira
Themyscira is a fictional island nation in the DC Comics universe that is the place of origin of Wonder Woman and her sister Amazons. Known as Paradise Island since Wonder Woman and the island's first appearance in All Star Comics #8 , it was renamed "Themyscira" with the character's February...

. Its ore can be fashioned into a bulletproof metal, but is usually used for jewelry, such as bracelets. The element feminum was created for the TV series only and is not strictly canonical
Canon (fiction)
In the context of a work of fiction, the term canon denotes the material accepted as "official" in a fictional universe's fan base. It is often contrasted with, or used as the basis for, works of fan fiction, which are not considered canonical...

 in the DC Universe
DC Universe
The DC Universe is the shared universe where most of the comic stories published by DC Comics take place. The fictional characters Superman, Batman and Wonder Woman are well-known superheroes from this universe. Note that in context, "DC Universe" is usually used to refer to the main DC continuity...

, where it is an analog to amazonium (see above).
Finkilium I Dream of Jeannie
I Dream of Jeannie
I Dream of Jeannie is a 1960s American sitcom with a fantasy premise. The show starred Barbara Eden as a 2,000-year-old genie, and Larry Hagman as an astronaut who becomes her master, with whom she falls in love and eventually marries...

 TV sitcom
A rare metal sought by NASA and imperative to the success of the Saturn 12 program. Mentioned in episode 116, "Guess Who's Going to Be A Bride."
Flubber The Absent-Minded Professor
The Absent-Minded Professor
The Absent-Minded Professor is a 1961 black-and-white Walt Disney Productions film based on the short story A Situation of Gravity, by Samuel W. Taylor....

The title role invented flubber ("flying rubber"), a rubbery material that bounces off a hard surface faster than it struck the surface.
Fortunate My Sims The crystal used to power the evil crown of morcubus in My Sims: Agents.
Fulgarator/Deflagrator Facing the Flag
Facing the Flag
Facing the Flag or For the Flag is an 1896 patriotic novel by Jules Verne. The book is part of the Voyages Extraordinaires series....

An extremely powerful explosive developed by the literally mad scientist Thomas Roch in Jules Verne
Jules Verne
Jules Gabriel Verne was a French author who pioneered the science fiction genre. He is best known for his novels Twenty Thousand Leagues Under the Sea , A Journey to the Center of the Earth , and Around the World in Eighty Days...

's book and placed at the disposal of the pirate Ker Karaje. To produce an explosion the application of a liquid known as "Deflagrator" is needed. A few grams suffice to smash a long tunnel through tough volcanic rock. Several thousand tons would smash the entire Earth and render it into a new asteroid belt
Asteroid belt
The asteroid belt is the region of the Solar System located roughly between the orbits of the planets Mars and Jupiter. It is occupied by numerous irregularly shaped bodies called asteroids or minor planets...

, though no one in the book is eager to go that far.
Froonium Farscape
Farscape
Farscape is an Australian-American science fiction television series filmed in Australia and produced originally for the Nine Network. The series was conceived by Rockne S. O'Bannon and produced by Jim Henson Productions and Hallmark Entertainment...

A substance created by series producer Richard Manning while he still worked on Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

 to represent any esoteric material. Appeared in Farscape
Farscape
Farscape is an Australian-American science fiction television series filmed in Australia and produced originally for the Nine Network. The series was conceived by Rockne S. O'Bannon and produced by Jim Henson Productions and Hallmark Entertainment...

 as an in-joke in several episodes. Manning's Fandom nickname is "Froonium Ricky."
Galvorn Middle-earth
Middle-earth
Middle-earth is the fictional setting of the majority of author J. R. R. Tolkien's fantasy writings. The Hobbit and The Lord of the Rings take place entirely in Middle-earth, as does much of The Silmarillion and Unfinished Tales....

A jet black metal (probably an alloy) devised by the Dark Elf Eöl
Eöl
Eöl, called the Dark Elf, is a fictional character in J. R. R. Tolkien's Middle-earth legendarium. He is introduced in The Silmarillion as an Elf of Beleriand and is a character existing in some form from the earliest to the latest writings....

 after he became greatly skilled in metalwork after learning the craft from the Dwarves of Nogrod and Belegost. The unique metal was as strong as the steel of the Dwarves, extremely malleable, and resistant to injury by metal weapons. Its only known use is in Eöl's armour, which he wore whenever he left his forest residence.
Gamilus Space Battleship Yamato
Space Battleship Yamato
is a Japanese science fiction anime series featuring an eponymous spacecraft. It is also known to English-speaking audiences as Space Cruiser Yamato; an English-dubbed and heavily edited version of the series was broadcast on North American and Australian television as Star Blazers...

A rare substance only found on the distant planet Gamilus, twin planet of Iscandar, 147,000 light years from Earth. It is a valuable building material, but it is unknown what it is used for or what properties it has. It is similar to Iscandarium, listed below.
Gemanite Avatar: The Last Airbender
Avatar: The Last Airbender
Avatar: The Last Airbender is an American animated television series that aired for three seasons on Nickelodeon from 2005 to 2008. The series was created and produced by Michael Dante DiMartino and Bryan Konietzko, who served as executive producers along with Aaron Ehasz...

This stone uses a person's own energy to grow in size. It can be used to encapsulate prisoners in the growing rock, but it can be broken by an earth bender. Gemanite is also edible as an energy rich rock-candy.
Gethre Old Kingdom Trilogy A material used for making coats of mail in the form of overlapping scales; lighter and possibly stronger than steel, as it does not scratch when scraped with metal weapons. Sabriel guesses that it is a form of ceramic, but the art of its making has been lost. The only gethre coats seen in the Old Kingdom novels are heirlooms from the Abhorsen's armoury.
Ghost Rock Deadlands
Deadlands
Deadlands is a genre-mixing alternate history roleplaying game which combines the Western and horror genres, with some Steampunk elements. It was written by Shane Lacy Hensley and published by Pinnacle Entertainment Group....

In the Great Maze, miners discover "ghost rock," a mineral that burns hotter and longer than coal and is used as the basis for most Deadlands technology as well as alchemical potions and semi-magical materials.
Globidium Eureka
Eureka (TV series)
Eureka is an American science fiction television series that premiered on Syfy on July 18, 2006. Since then four seasons have aired, and a fifth is currently being filmed. The second half of season 4 began on SyFy on July 11, 2011 and ended on September 19, 2011...

A nuclear element artificially created at Global Dynamics (hence the name), an advanced research facility in the futuristic town of geniuses called Eureka. It is much safer than plutonium with ten times the energy output. It takes six months to create artificially. It has no health risks compared to elements like plutonium but if taken out of its container it would emit moderate levels of radioactivity (specifically gamma radiation). It has a blue gel-like appearance (which implies that it might be a nonmetal, though this has not been confirmed) and it apparently can be contained in a cylinder of glass or metal. So far it has only been stated in the 12th episode of season three, "It's Not Easy Being Green," which aired on July 31, 2009.
Grimacite The Kingdom of Loathing This material is what one of the Kingdom's two moons is made of. A chunk of it fell onto the Desert Beach after the moon, Grimace, was hit by a comet. The Penguin Mafia was using it for unknown purposes until the Naughty Sorceress made off with it.
Gundanium Alloy New Mobile Report Gundam Wing An almost immutable, heat-resistant, and electrically neutral material used by the Gundams, it absorbs Electro-magnetic waves
Electromagnetic radiation
Electromagnetic radiation is a form of energy that exhibits wave-like behavior as it travels through space...

. Additionally, heat and beam weapons produced using gundanium are much stronger than similar weapons made using traditional titanium, thanks to its extremely high melting point.
H-128 City Beneath the Sea(1971)
City Beneath the Sea (1971 film)
City Beneath the Sea is a 1971 science fiction television film and television pilot for a proposed series by Irwin Allen. It started as a conceptual 10 minute demo reel as a means to sell the plot and concept to television studios. The concept wasn't bought initially and a few years later Allen...

In Irwin Allen's City Beneath the Sea, H-128 was an extremely radioactive metallic isotope which required gold shielding for safe storage.
Hellion Kingdom of Loathing
Kingdom of Loathing
Kingdom of Loathing is a browser-based, multiplayer role-playing game designed and operated by Asymmetric Publications, including creator Zack "Jick" Johnson and writer Josh "Mr. Skullhead" Nite. The game was released in 2003...

The Hellion is a charged atom of Infernium. Appears in-game as a monster made up of a single large (and deadly) atom which attacks by burning you with its particles. When defeated it will sometimes drop a "Hellion Cube" which is used to make "Hell Broth" much the same way a bouillon cube makes regular broth.
Hydrium Airborn by Kenneth Oppel
Kenneth Oppel
Kenneth Oppel is a Canadian author. Born in Port Alberni, British Columbia, he spent his childhood in Victoria, British Columbia and Halifax, Nova Scotia. He has also lived in Newfoundland and Labrador, England and Ireland....

Hydrium is an naturally occurring elemental gas lighter than hydrogen, usually found issuing from volcanic vents. Used in airships as a lifting gas and thus as economically valuable in series, as oil is in the real world. In the second book of the series (Skybreaker) control of a mysterious process involving splitting water with light & electricity to make Hydrium, as well as hydrogen and oxygen, is a major plot motivator. Hydrium, for reasons unexplained, smells of over-ripe mangos but with a betraying slight bitterness to it.
Herculaneum Blake's 7
Blake's 7
Blake's 7 is a British science fiction television series produced by the BBC for its BBC1 channel. The series was created by Terry Nation, a prolific television writer and creator of the Daleks for the television series Doctor Who. Four series of Blake's 7 were produced and broadcast between 1978...

Tough, firepower resistant substance; the Liberator's hull was made of this.
Herculite Voyage to the Bottom of the Sea
Voyage to the Bottom of the Sea
Voyage to the Bottom of the Sea is an American science fiction film, produced and directed by Irwin Allen, released by 20th Century Fox in 1961. The story was written by Irwin Allen and Charles Bennett. Walter Pidgeon starred as Admiral Harriman Nelson, with Robert Sterling as Captain Lee Crane...

A tensile hull material, with great resistance to pressure, that was invented by Admiral Harriman Nelson for his submarine, the Seaview.
Ice-nine
Ice-nine
Ice-nine is a fictional material appearing in Kurt Vonnegut's novel Cat's Cradle. It is supposed to be a more stable polymorph of water than common ice which instead of melting at 0 degrees Celsius , melts at 45.8 °C...

Cat's Cradle
Cat's Cradle
Cat's Cradle is the fourth novel by American writer Kurt Vonnegut, first published in 1963. It explores issues of science, technology, and religion, satirizing the arms race and many other targets along the way...

A form of water ice that has a melting point of about 114° Fahrenheit, making it solid at room temperature. A crystal of ice-nine can serve as a seed to solidify vast bodies of water. (Although there is a real form of water ice with a similar designation, ice IX
Ice IX
Ice IX is a form of solid water stable at temperatures below 140 K and pressures between 200 and 400 MPa. It has a tetragonal crystal lattice and a density of 1.16 g/cm³, 26% higher than ordinary ice. It is formed by cooling ice III from 208 K to 165 K...

, it exists only at low temperatures and high pressures and has nothing in common with the fictional ice-nine.)
Illithium Baldur's Gate II: Shadows of Amn
Baldur's Gate II: Shadows of Amn
Baldur's Gate II: Shadows of Amn is a computer role-playing game developed by BioWare and released on September 26, 2000. The game is the sequel to Baldur's Gate, and, opening only a few months after the events of the earlier game, continues the story of the player character, whose unique heritage...

A precious metal that can be used both for sculpture and for creating weapons that are effective against the undead
Undead
Undead is a collective name for fictional, mythological, or legendary beings that are deceased and yet behave as if alive. Undead may be incorporeal, such as ghosts, or corporeal, such as vampires and zombies...

.
Illudium Phosdex Looney Tunes
Looney Tunes
Looney Tunes is a Warner Bros. animated cartoon series. It preceded the Merrie Melodies series and was Warner Bros.'s first animated theatrical series. Since its first official release, 1930's Sinkin' in the Bathtub, the series has become a worldwide media franchise, spawning several television...

Also known as the shaving cream atom, it was found only on Planet X, which was unfortunately destroyed when both Duck Dodgers
Duck Dodgers
Duck Edgar Dumas Aloysius Eoghain Dodgers is the metafictional star of a series of cartoons produced by Warner Bros. He is actually the famous cartoon star Daffy Duck, cast in the role of an intergalactic future hero....

 and Marvin the Martian
Marvin the Martian
Marvin the Martian is a fictional character appearing in the Looney Tunes cartoons. Marvin's likeness appears in miniature on the Spirit rover on Mars.-Conception and creation:...

 tried to conquer it for Earth and Mars, respectively.
Illyrion Samuel R. Delany
Samuel R. Delany
Samuel Ray Delany, Jr., also known as "Chip" is an American author, professor and literary critic. His work includes a number of novels, many in the science fiction genre, as well as memoir, criticism, and essays on sexuality and society.His science fiction novels include Babel-17, The Einstein...

's book Nova
Nova (novel)
Nova is a science fiction novel by Samuel R. Delany. Nominally space opera, it explores the politics and culture of a future where cyborg technology is universal, yet major decisions can involve using tarot cards. It has strong mythological overtones, relating to both the Grail Quest and Jason's...

Valuable heavy element which the heroes must harvest from the centre of a star as it turns into a nova.
Imperium X Sten Highly inert element that does not annihilate when comes in contact with AM2. Is used to contain and store AM2.
Impervium Donald Duck
Donald Duck
Donald Fauntleroy Duck is a cartoon character created in 1934 at Walt Disney Productions and licensed by The Walt Disney Company. Donald is an anthropomorphic white duck with a yellow-orange bill, legs, and feet. He typically wears a sailor suit with a cap and a black or red bow tie. Donald is most...

, Magic: The Gathering
Magic: The Gathering
Magic: The Gathering , also known as Magic, is the first collectible trading card game created by mathematics professor Richard Garfield and introduced in 1993 by Wizards of the Coast. Magic continues to thrive, with approximately twelve million players as of 2011...

, Star Wars
Star Wars
Star Wars is an American epic space opera film series created by George Lucas. The first film in the series was originally released on May 25, 1977, under the title Star Wars, by 20th Century Fox, and became a worldwide pop culture phenomenon, followed by two sequels, released at three-year...

 and 1987 Teenage Mutant Ninja Turtles cartoon
Teenage Mutant Ninja Turtles (1987 TV series)
Teenage Mutant Ninja Turtles is an American animated television series produced by Murakami-Wolf-Swenson. The pilot was shown during the week of December 28, 1987 in syndication as a five part miniseries and began its official run on October 1, 1988...

, Four Musketurtles
Material of which the doors of Scrooge McDuck
Scrooge McDuck
Scrooge McDuck is a cartoon character created in 1947 by Carl Barks and licensed by The Walt Disney Company. Scrooge is an anthropomorphic white duck with a yellow-orange bill, legs, and feet. He typically wears a red or blue frock coat, top hat, pince-nez glasses, and spats...

's money bin are made, according to Carl Barks
Carl Barks
Carl Barks was an American Disney Studio illustrator and comic book creator, who invented Duckburg and many of its inhabitants, such as Scrooge McDuck , Gladstone Gander , the Beagle Boys , The Junior Woodchucks , Gyro Gearloose , Cornelius Coot , Flintheart Glomgold , John D...

. Also, the material out of which darksteel is made. An element named impervium is also in the 1987 Teenage Mutant Ninja Turtles cartoon
Teenage Mutant Ninja Turtles (1987 TV series)
Teenage Mutant Ninja Turtles is an American animated television series produced by Murakami-Wolf-Swenson. The pilot was shown during the week of December 28, 1987 in syndication as a five part miniseries and began its official run on October 1, 1988...

, used by Krang
Krang
Krang is a fictional supervillain who appears in the Sonic The Hedgehog TV shows and most frequently in the 1987 STH cartoon and its associated media, such as the Teenage Mutant Ninja Turtles Adventures comic book and most of the classic TMNT video games....

 to power a force field generator. In Star Wars
Star Wars
Star Wars is an American epic space opera film series created by George Lucas. The first film in the series was originally released on May 25, 1977, under the title Star Wars, by 20th Century Fox, and became a worldwide pop culture phenomenon, followed by two sequels, released at three-year...

, impervium is a white plastic used to make Stormtrooper
Stormtrooper
Stormtroopers were specialist soldiers of the German Army in World War I. In the last years of the war, Stoßtruppen were trained to fight with "infiltration tactics", part of the Germans' new method of attack on enemy trenches...

 armor.
Imulsion Gears of War
Gears of War
Gears of War is a military science fiction third-person shooter video game developed by Epic Games and published by Microsoft Game Studios...

A liquid element discovered on the planet Sera. When an unspecified amount of Imulsion was sublimated by the Lightmass bomb at the end of the first game in a major attack on the Locust Horde, the gas seeped into the atmosphere, resulting in a disease called 'Rust Lung.'
Incendicite World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

A mineral only found within Thelgen's Rock in the Wetlands. Wanted by Pilot Stonegear. It has explosive qualities.
Indurium World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

A mineral found within the depths of the Titan vault Uldaman. Used by certain Goblins to build racing cars.
Inertron Buck Rogers in the 25th Century (Newspaper strip) Chemical element that is repelled by gravity, much as the same poles of two magnets will repel each other. Inertron's action is similar to that of Cavorite (see above).
Inertron Legion of Super-Heroes
Legion of Super-Heroes
The Legion of Super-Heroes is a fictional superhero team in the 30th and 31st centuries of the . The team first appears in Adventure Comics #247 , and was created by Otto Binder and Al Plastino....

Chemical element that is resistant to all known forms of chemical and electromagnetic interaction. It is essentially indestructible. A telepathic reality-rending device, "The Miracle Machine," was enclosed in a cube of this substance.
Infernium Kingdom of Loathing
Kingdom of Loathing
Kingdom of Loathing is a browser-based, multiplayer role-playing game designed and operated by Asymmetric Publications, including creator Zack "Jick" Johnson and writer Josh "Mr. Skullhead" Nite. The game was released in 2003...

Infernium ionizes to Hellion. Additionally, Demoninjas sometimes brag about their katana blades being made of Infernium, and claim that the blades are unbreakable, but this is demonstrably false; their most noteworthy property seems to be that they are perpetually hot.
Inoson The Skylark of Space
The Skylark of Space
The Skylark of Space by Edward E. "Doc" Smith was written between 1915 and 1921 while Smith was working on his doctorate. Though the original idea for the novel was Smith's, he co-wrote the first part of the novel with Lee Hawkins Garby, the wife of his college classmate and later neighbor Carl Garby...

Arenak, dagal and inoson, transparent, super-hardened treatments of ordinary metals which appear in E. E. Smith
E. E. Smith
Edward Elmer Smith, Ph.D., also, E. E. Smith, E. E. "Doc" Smith, Doc Smith, "Skylark" Smith, and Ted was a food engineer and early science fiction author who wrote the Lensman series and the Skylark series, among others...

's The Skylark of Space and its sequels. Inoson was the theoretically strongest substance in the universe.
Insidium Orion's Arm world building project A form of exotic matter used in the construction of steath spacecraft and satellites. Insidium is engineered to absorb certain specific kinds of electromagnetic radiation, rendering it invisible to normal detection. This can be overcome, or worked around, but overall it makes a highly effective stealth construction material. Because it is exotic matter, it is rare, and produced and refined only by highly advanced societies ruled by A.I. gods, or used by their minions.
Isodesium Star Trek: Voyager - Elite Force An extremely rare substance. While many of its uses are unknown, it was used by the Voyager crew to counter the effects of a large forcefield trapping the ship.
Iscandarium Space Battleship Yamato
Space Battleship Yamato
is a Japanese science fiction anime series featuring an eponymous spacecraft. It is also known to English-speaking audiences as Space Cruiser Yamato; an English-dubbed and heavily edited version of the series was broadcast on North American and Australian television as Star Blazers...

A rare substance only found on the distant planet Iscandar, twin planet of Gamilus, 147,000 light years from Earth. It is a valuable building material, but it is unknown what it is used for or what properties it has.
Isogen EVE Online
EVE Online
Eve Online is a video game by CCP Games. It is a player-driven, persistent-world MMORPG set in a science fiction space setting. Characters pilot customizable ships through a galaxy of over 7,500 star systems. Most star systems are connected to one or more other star systems by means of stargates...

Light-bluish crystal, formed by intense pressure deep within large asteroids and moons. Used in electronics and weapons manufacturing. Only found in abundance in a few areas.
Japanium Mazinger Z
Mazinger Z
, known briefly as Tranzor Z in United States, is a Super Robot manga and anime series created by Go Nagai. The first manga version was serialized in Shueisha Weekly Shōnen Jump from October 1972 to August 1973, and it later continued in Kodansha TV Magazine from October 1973 to September 1974. In...

Extremely strong material used in the construction of Mazinger Z. Discovered by Doctor Tanaka. See also Super Alloy Z and volcanium.
Jasmium Frank Herbert's Dune
Frank Herbert's Dune
Frank Herbert's Dune is a 2001 3D video game based on the 2000 Sci Fi Channel miniseries of the same name. The game was not a commercial or critical success, and was the last product by Cryo Interactive, which went bankrupt shortly after the game's failure.As Paul, the son of the Duke Atreides's...

Extraterrestrial mineral whose presence in composite minerals and metallic alloys (specifically, Jasmium quartz and Plasteel) results in incredible tensile and mechanical strength. Used to make monomolecular edged weapons.
Jethrik Doctor Who
Doctor Who
Doctor Who is a British science fiction television programme produced by the BBC. The programme depicts the adventures of a time-travelling humanoid alien known as the Doctor who explores the universe in a sentient time machine called the TARDIS that flies through time and space, whose exterior...

The rarest of elements, Jethrik (also spelled Jethryk) is found native as a blue mineral of incredible value. A few kilograms could "power a battlefleet for an entire campaign." In "The Ribos Operation
The Ribos Operation
The Ribos Operation is a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from September 2 to September 23, 1978. This serial introduces Mary Tamm as the companion Romana. After finishing his first year as producer of Doctor Who,...

," the Doctor and his assistant Romana retrieve the first Key to Time segment in its guise as a lump of the mineral.
Jezz JezzBall
JezzBall
JezzBall is a video game in which red-and-white balls, referred to as atoms, bounce about a rectangular field of play, or room. The player advances to the next level by containing the atoms in progressively smaller spaces, until at least 75% of the area is blocked off...

A fictional material featured in JezzBall. The object of the game is to contain the material by creating walls, until a percentage of the chamber is sealed.
Jouronium Battlefield 2142
Battlefield 2142
Battlefield 2142 is a first-person shooter video game developed by Digital Illusions CE and produced by Electronic Arts . It is the fourth game in the Battlefield series...

A material used to make sniper rifle bullets and other gun components.
Jumbonium Futurama
Futurama
Futurama is an American animated science fiction sitcom created by Matt Groening and developed by Groening and David X. Cohen for the Fox Broadcasting Company. The series follows the adventures of a late 20th-century New York City pizza delivery boy, Philip J...

Each atom of this element is large enough to be easily visible to the naked eye, with marble-sized nucleons and electrons.
Kairoseki One Piece
One Piece
is a Japanese shōnen manga series written and illustrated by Eiichiro Oda. It has been serialized in Weekly Shōnen Jump since August 4, 1997; the individual chapters are being published in tankōbon volumes by Shueisha, with the first released on December 24, 1997, and the 64th volume released as...

Dull gray stone that nullifies the effects of Devil Fruits in the One Piece universe and weakens the Devil Fruit User. It can also be used to hide the presence of ships from sea monsters.
Kaiserium My Sims A rare substance descovered in Gabby's Silver mine (My Sims Agents), and an obtainable essance on the Uncharted Isle (My Sims Kingdom).
Khorium World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

A very rare, very valuable and very powerful demonic metal found on the shattered remnants of Draenor (Outland).
Kratonite RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

A light grey metal found only in RuneScape's Daemonheim.
Khaydarin Starcraft
StarCraft
StarCraft is a military science fiction real-time strategy video game developed by Blizzard Entertainment. The first game of the StarCraft series was released for Microsoft Windows on 31 March 1998. With more than 11 million copies sold worldwide as of February 2009, it is one of the best-selling...

A light blue crystal mined for unit and building construction.
Kryptonite
Kryptonite
Kryptonite is a fictional material from the Superman mythos —the ore form of a radioactive element from Superman's home planet of Krypton. It is famous for being the ultimate physical weakness of Superman, and the word kryptonite has since become synonymous with an Achilles' heel —the one weakness...

DC Comics
DC Comics
DC Comics, Inc. is one of the largest and most successful companies operating in the market for American comic books and related media. It is the publishing unit of DC Entertainment a company of Warner Bros. Entertainment, which itself is owned by Time Warner...

A crystalline material, originally in various colors with separate effects, harmful to Kryptonians and created during the destruction of Superman
Superman
Superman is a fictional comic book superhero appearing in publications by DC Comics, widely considered to be an American cultural icon. Created by American writer Jerry Siegel and Canadian-born American artist Joe Shuster in 1932 while both were living in Cleveland, Ohio, and sold to Detective...

's home planet Krypton; synthesis is also possible. John Byrne's retcon of the DC Comics universe established green kryptonite as a compound and later issues had experiments by Batman and Luthor reestablish the Pre-Crisis versions of red, blue, and gold. Kryptonite has been found in the real world (according to its chemical composition) and has none of the properties or color variations of fictional kryptonite (google real kryponite found). However, DC Comics had previously described kryptonite as an alien element with a higher atomic number than known Earth elements.
Laconia Phantasy Star
Phantasy Star series
is a series of console role-playing video games and other supplementary media created by Sega. The original game debuted in 1987 on the Sega Master System with Phantasy Star, and continues into the present with Phantasy Star Universe, Sega's foray into the realm of MMORPGs...

 video game series
Valuable metal used in the construction of weapons and armor, described as the strongest material in Algol. Found in great quantities on the planet Dezolis.
Larasium Mistborn A metal which turns anyone who consumes it into a Mistborn or Misting.
Latinum Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

A very rare and valuable silvery liquid. Gold-pressed latinum is a form of commodity money
Commodity money
Commodity money is money whose value comes from a commodity out of which it is made. It is objects that have value in themselves as well as for use as money....

 made of latinum suspended within gold. Latinum is valuable and stable as a commodity money because of its inability to be replicated—a technology, depicted in Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

, that can synthesize non-living matter, which would devalue any ordinary precious metal.
Lexonite WordGirl
WordGirl
WordGirl is an American children’s animated television series for children aged 6-12, produced by the Soup2Nuts animation unit of Scholastic Entertainment for PBS Kids...

A reddish-brown substance from the planet Lexicon that can be used to weaken Lexiconians on another planet. For example, a lexonite cage is used not only to imprison WordGirl (who is from Lexicon and lives on Earth), but also weaken her strength and intelligence.
Liquid electricity
Liquid electricity
Liquid electricity is a fictional liquid substance that often appeared in comedy short films of the silent film era. It is the "distilled essence of electricity" in liquid form, a glowing substance easily stored in bottles. It provides fantastic energy and super-speed when used as a fuel for...

Silent film
Silent film
A silent film is a film with no synchronized recorded sound, especially with no spoken dialogue. In silent films for entertainment the dialogue is transmitted through muted gestures, pantomime and title cards...

 comedies
Comedy
Comedy , as a popular meaning, is any humorous discourse or work generally intended to amuse by creating laughter, especially in television, film, and stand-up comedy. This must be carefully distinguished from its academic definition, namely the comic theatre, whose Western origins are found in...

 of the early 20th century
The "distilled essence of electricity;" a glowing, liquid substance that provided fantastic energy and super-speed to vehicles, machines, and people.
Liquid Protodermis Bionicle
Bionicle
Bionicle is a line of toys by the LEGO Group marketed primarily for 5- to 16-year-olds. The line was launched on December 30, 2000 in Europe and June/July 2001 in Canada and the United States. "Bionicle" is a portmanteau constructed from the words "biological" and "chronicle"...

A clear, silvery substance, the Matoran Universe's (namely Metru Nui) equivalent of water, also a source of food for Nui-Rama. Purified, it gains a slightly blue tint. Liquid Molten Protodermis has the properties of molten metal. It can be called "lava". Sticky Protodermis forms cage-like structures when it strikes a solid object. It is manufactured into Xia's Eccentric Rock.
Lux
Lux
The lux is the SI unit of illuminance and luminous emittance, measuring luminous flux per unit area. It is used in photometry as a measure of the intensity, as perceived by the human eye, of light that hits or passes through a surface...

Arcot, Wade, and Morey novels by John W. Campbell
John W. Campbell
John Wood Campbell, Jr. was an influential figure in American science fiction. As editor of Astounding Science Fiction , from late 1937 until his death, he is generally credited with shaping the so-called Golden Age of Science Fiction.Isaac Asimov called Campbell "the most powerful force in...

Material created from light; indestructible and transparent. Used in the hull of the heroes' spaceships. See also Relux.
Lunar Titanium/Gundarium Alloy (Alpha, Beta, Gamma) Gundam
Gundam
The is a metaseries of anime created by Sunrise studios that features giant robots called "Mobile Suits" ; usually the protagonist's MS will carry the name Gundam....

 Universal Century
Universal Century
is the original timeline of the Gundam anime metaseries. The official English name U.C. is often used instead in recent production like MS Igloo and Master Grade model instructions and official pages is the original timeline of the Gundam anime metaseries. The official English name U.C....

A Titanium
Titanium
Titanium is a chemical element with the symbol Ti and atomic number 22. It has a low density and is a strong, lustrous, corrosion-resistant transition metal with a silver color....

 alloy
Alloy
An alloy is a mixture or metallic solid solution composed of two or more elements. Complete solid solution alloys give single solid phase microstructure, while partial solutions give two or more phases that may or may not be homogeneous in distribution, depending on thermal history...

 manufactured in space which has a perfect crystal structure, but also exhibits the properties of foam metal. It can take direct hits from a 120mm machine gun and survive unscratched for the first time that area got hit. It is also a material that is highly heat-resistant and can resist atmospheric reentry
Atmospheric reentry
Atmospheric entry is the movement of human-made or natural objects as they enter the atmosphere of a celestial body from outer space—in the case of Earth from an altitude above the Kármán Line,...

 heat for a period.
Maalgorium Zero Effect
Zero Effect
Zero Effect is a 1998 mystery film written and directed by Jake Kasdan . It stars Bill Pullman as "the world's most private detective" Daryl Zero and Ben Stiller as his assistant Steve Arlo....

Referenced when Zero is doing Gloria's taxes and she inquires about the fictional "Corrodium 3 deduction," which he explains pertains to "class 3 decay toxins, such as corrodium and maalgorium."
Magicite Final Fantasy
Final Fantasy
is a media franchise created by Hironobu Sakaguchi, and is developed and owned by Square Enix . The franchise centers on a series of fantasy and science-fantasy role-playing video games , but includes motion pictures, anime, printed media, and other merchandise...

Appears in several series installments. Final Fantasy VI it appears as a red-marked dark green crystal containing the magic
Magic (paranormal)
Magic is the claimed art of manipulating aspects of reality either by supernatural means or through knowledge of occult laws unknown to science. It is in contrast to science, in that science does not accept anything not subject to either direct or indirect observation, and subject to logical...

 and soul of a dead Esper
Esper
An esper refers to an individual capable of telepathy and other similar paranormal abilities. The term was apparently coined by Alfred Bester in his 1950 short story "Oddy and Id" and is derived from the abbreviation ESP for extrasensory perception....

. In Final Fantasy XII it describes a mineral that is crystalline in nature with varying magical properties.
Magirock Terranigma
Terranigma
Terranigma, known as in Japan, is a 1995 action role-playing game for the Super Nintendo Entertainment System developed by Quintet. It was published by Enix in Japan before Nintendo localized the game and released an English version in Europe and Australia. The game was never officially released...

A blue crystal-like substance that is used as a form of currency for purchasing spells.
Mako Final Fantasy VII
Final Fantasy VII
is a role-playing video game developed by Square and published by Sony Computer Entertainment as the seventh installment in the Final Fantasy series. It was originally released in 1997 for the Sony PlayStation and was re-released in 1998 for Microsoft Windows-based personal computers and in 2009...

Liquid containing spiritual energy that is the lifeblood of the Planet. When crystallized, it is known as Materia, and can grant the use of magic
Magic (paranormal)
Magic is the claimed art of manipulating aspects of reality either by supernatural means or through knowledge of occult laws unknown to science. It is in contrast to science, in that science does not accept anything not subject to either direct or indirect observation, and subject to logical...

 and enhance natural abilities.
Maclarium Stargate SG-1
Stargate SG-1
Stargate SG-1 is a Canadian-American adventure and military science fiction television series and part of Metro-Goldwyn-Mayer's Stargate franchise. The show, created by Brad Wright and Jonathan Glassner, is based on the 1994 feature film Stargate by Dean Devlin and Roland Emmerich...

Mentioned in passing, Maclarium is a heavy element that has an atomic weight
Atomic weight
Atomic weight is a dimensionless physical quantity, the ratio of the average mass of atoms of an element to 1/12 of the mass of an atom of carbon-12...

 of over 200. No other details are given.
Maractite Neopets
Neopets
Neopets is a virtual pet website that was launched by Adam Powell and Donna Williams on November 15, 1999. Two years after the web site was launched, Adam Powell and Donna Williams sold a majority share to a consortium of investors led by Doug Dohring. On June 20, 2005, Viacom bought Neopets, Inc...

It is an element that can pass through water as easily as something could pass through air. It has an "inverted" way of corroding; it reacts fast with oxygen and carbon dioxide but stays unharmed if the oxygen is bonded to hydrogen.
Marmaros RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

An orange metal that is found only in RuneScape's Daemonheim
Marvelium Shazam Invented by Captain Marvel's nemesis, Sivana. Its atomic number is 99 (which has since been discovered and named Einsteinium
Einsteinium
Einsteinium is a synthetic element with the symbol Es and atomic number 99. It is the seventh transuranic element, and an actinide.Einsteinium was discovered in the debris of the first hydrogen bomb explosion in 1952, and named after Albert Einstein...

).
Megacyte EVE Online
EVE Online
Eve Online is a video game by CCP Games. It is a player-driven, persistent-world MMORPG set in a science fiction space setting. Characters pilot customizable ships through a galaxy of over 7,500 star systems. Most star systems are connected to one or more other star systems by means of stargates...

An extremely rare mineral found in comets and very occasionally in asteroids that have traveled through gas clouds. Has unique explosive traits that make it very valuable in the armaments industry.
Melange, the spice Dune universe
Dune universe
Dune is a science fiction franchise which originated with the 1965 novel Dune by Frank Herbert. Considered by many to be the greatest science fiction novel of all time, Dune is frequently cited as the best-selling science fiction novel in history...

The spice melange exists on only one planet in the known universe. It extends life in humans and can cause prescience and, in large enough doses, the ability to fold space. It is addictive and withdrawal is fatal.
Meowium The Solar Cat Book Atomic number 0. Primarily used as meowium dioxide (MeO2) which, when applied to the fur of a cat, produces a voltage between areas of differently colored fur in the presence of sunlight.
Mercoxit EVE Online
EVE Online
Eve Online is a video game by CCP Games. It is a player-driven, persistent-world MMORPG set in a science fiction space setting. Characters pilot customizable ships through a galaxy of over 7,500 star systems. Most star systems are connected to one or more other star systems by means of stargates...

Ore used to produce morphite.
Metatron Zone of the Enders
Zone of the Enders
The soundtrack to Zone of the Enders was released April 25, 2001 on the album Zone of the Enders Z.O.E Original Soundtrack by Konami Music Entertainment. Almost all the music was composed by the trio , and . Also, composed "Global 2 " and , "City ". The theme song "KISS ME SUNLIGHTS" was composed...

Similar to silicon
Silicon
Silicon is a chemical element with the symbol Si and atomic number 14. A tetravalent metalloid, it is less reactive than its chemical analog carbon, the nonmetal directly above it in the periodic table, but more reactive than germanium, the metalloid directly below it in the table...

, forming computer chips, but more advanced, it is capable of forming completely self-aware artificial intelligence
Artificial intelligence
Artificial intelligence is the intelligence of machines and the branch of computer science that aims to create it. AI textbooks define the field as "the study and design of intelligent agents" where an intelligent agent is a system that perceives its environment and takes actions that maximize its...

s. It also has space-compressing qualities, able to create pocket dimensions and allow faster travel.
Mexallon EVE Online
EVE Online
Eve Online is a video game by CCP Games. It is a player-driven, persistent-world MMORPG set in a science fiction space setting. Characters pilot customizable ships through a galaxy of over 7,500 star systems. Most star systems are connected to one or more other star systems by means of stargates...

Very flexible metallic mineral, dull to bright silvery green in color. Can be mixed with Tritanium to make extremely hard alloys or it can be used by itself for various purposes. Fairly common in most regions.
Minovsky Particle, Mega particle Gundam
Gundam
The is a metaseries of anime created by Sunrise studios that features giant robots called "Mobile Suits" ; usually the protagonist's MS will carry the name Gundam....

 Universal Century
Universal Century
is the original timeline of the Gundam anime metaseries. The official English name U.C. is often used instead in recent production like MS Igloo and Master Grade model instructions and official pages is the original timeline of the Gundam anime metaseries. The official English name U.C....

The two positive and negative Minovsky particles found in the Universal Century will form an I-Field when scattered in space. Depending on its density, it can block electro-magnetic waves and interfere with radar. Mega particle is a neutral version made by compressing the two Minovsky particles and used for powerful beam weaponry.
Mithril
Mithril
Mithril is a fictional metal, originally used in J. R. R. Tolkien's Middle-earth fantasy writings. It is described as silvery and stronger than steel but much lighter in weight. The malleability, lack of tarnishing and use of the metal in jewellery suggest some similarity to the non-fictional metal...

Middle-earth
Middle-earth
Middle-earth is the fictional setting of the majority of author J. R. R. Tolkien's fantasy writings. The Hobbit and The Lord of the Rings take place entirely in Middle-earth, as does much of The Silmarillion and Unfinished Tales....

, Dungeons and Dragons, RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

, World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

,Clash of Kingdoms
A durable silvery metal that is very light and easy to work. Mithril means "grey gleam", but is translated as "true silver". It was mined in native form in Moria
Moria (Middle-earth)
In the fiction of J. R. R. Tolkien, Moria was the name given by the Eldar to an enormous underground complex in north-western Middle-earth, comprising a vast network of tunnels, chambers, mines and huge halls or 'mansions', that ran under and ultimately through the Misty Mountains...

. It can also be worked into other forms with unusual properties such as reflecting only the light of the Moon. "Mythril" appears in the video game series Final Fantasy
Final Fantasy
is a media franchise created by Hironobu Sakaguchi, and is developed and owned by Square Enix . The franchise centers on a series of fantasy and science-fantasy role-playing video games , but includes motion pictures, anime, printed media, and other merchandise...

. Also, "Mithral" is used in D&D books and "Milrith" in Simon the Sorcerer
Simon the Sorcerer
Simon the Sorcerer is an adventure game that was released by Adventure Soft on 2 January 1993 for Amiga and MS-DOS formats. The story begins with the protagonist, Simon, as an ordinary teenager. His dog, "Chippy", discovers a chest in the loft of his house containing a spellbook titled "Ye Olde...

. In the Warhammer
Warhammer Fantasy (setting)
Warhammer Fantasy is a fantasy setting, created by Games Workshop, which is used by many of the company's games. Some of the best-known games set in this world are: the table top wargame Warhammer Fantasy Battle, the Warhammer Fantasy Roleplay pen-and-paper role-playing game, and the MMORPG...

 world, the High Elven metal "Ithilmar" has similar properties and usage. In RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

 it is a lightweight blue metal stronger than steel. In World of Warcraft, Mithril is a silvery-white mid-high level mineral. "Mithral" is also featured in the Dungeon Master series.
Mizzium Magic: The Gathering
Magic: The Gathering
Magic: The Gathering , also known as Magic, is the first collectible trading card game created by mathematics professor Richard Garfield and introduced in 1993 by Wizards of the Coast. Magic continues to thrive, with approximately twelve million players as of 2011...

An alchemically potent, flameproof metal used in the experiments and devices of the Izzet League in the Guildpact
Guildpact
Guildpact is a Magic: The Gathering set, second in the Ravnica Block. Guildpact was released on February 3, 2006.-Design:Ravnica was conceived following the success of Invasion. Invasion, released in 2000, emphasized interactions between the colors, and it was one of Magics most popular releases...

 expansion set. Its only appearance on cards is in the Mizzium Transreliquat, and the flavortext of Stomp and Howl. Other than that, its only other references are when mentioned in passing by members of the Creative department.
Moonsilver Exalted
Exalted
Exalted is a role-playing game published by White Wolf Publishing. The game is classified as high fantasy, but may be more accurately described as "mythic fantasy", as the developer specifically avoided drawing on J. R. R. Tolkien, but rather turned to a mixture of world mythologies for inspiration...

The most protean of the five magical materials, can be formed where the light of the Moon has boiled away the Wyld. Can be made to mimic muscle and nerves.
Monopasium 239 Blake's 7
Blake's 7
Blake's 7 is a British science fiction television series produced by the BBC for its BBC1 channel. The series was created by Terry Nation, a prolific television writer and creator of the Daleks for the television series Doctor Who. Four series of Blake's 7 were produced and broadcast between 1978...

A fuel for the Federation's space fleet, this radioactive element is found on only a few planets, including the planet code-named Horizon in the episode of the same name. The Federation has the planet's natives mine the substance by hand, killing them in 30 time units.
Monopolium Orion's Arm
Orion's Arm
Orion's Arm, is a multi-authored online science fiction world-building project, first established in 2000 by M. Alan Kazlev, Donna Malcolm Hirsekorn, Bernd Helfert and Anders Sandberg and further co-authored by many people since...

 world building project
A fictional artificial element created using monopoles by some unspecified means. Monopolium is extremely versatile and used in the construction of megascale constructs like ringworlds and Dyson Brains.
Mordite The Dresden Files
The Dresden Files
The Dresden Files is a series of contemporary fantasy/mystery novels written by Jim Butcher.He provides a first person narrative of each story from the point of view of the main character, private investigator and wizard Harry Dresden, as he recounts investigations into supernatural disturbances in...

A rare anti-life mineral. Contact instantly turns organic beings to dust.
Morphite EVE Online
EVE Online
Eve Online is a video game by CCP Games. It is a player-driven, persistent-world MMORPG set in a science fiction space setting. Characters pilot customizable ships through a galaxy of over 7,500 star systems. Most star systems are connected to one or more other star systems by means of stargates...

Morphite can only be found in the hard-to-get mercoxit ore. Hard to use as a basic building material, when it is joined with existing structures it can enhance the performance and durability manifold.
Nanominium Captain Midlands
Captain Midlands
Captain Midlands, real name "Rambling" Sid Ridley, is a fictional comic book character within Marvel Comics' shared universe the Marvel Universe...

An anti-magic gloss applied to "Rambling" Sid Ridley's shield.
Naquadah Stargate SG-1
Stargate SG-1
Stargate SG-1 is a Canadian-American adventure and military science fiction television series and part of Metro-Goldwyn-Mayer's Stargate franchise. The show, created by Brad Wright and Jonathan Glassner, is based on the 1994 feature film Stargate by Dean Devlin and Roland Emmerich...

 and Stargate Atlantis
Stargate Atlantis
Stargate Atlantis is a Canadian-American adventure and military science fiction television series and part of MGM's Stargate franchise. The show was created by Brad Wright and Robert C. Cooper as a spin-off series of Stargate SG-1, which was created by Wright and Jonathan Glassner and was itself...

A dull grey heavy metal used by the Goa'uld
Goa'uld
The Goa'uld are a fictional symbiotic race of ancient astronauts from the American-Canadian military science fiction television franchise Stargate. The Goa'uld are parasites from the planet P3X-888, integrated within a host, most of the time human. The resulting creatures are a powerful race bent...

 and others as a power source, for the construction of Stargates
Stargate (device)
A Stargate is a portal device within the Stargate fictional universe that allows practical, rapid travel between two distant locations. The devices first appear in the 1994 Roland Emmerich film Stargate, and thereafter in the television series Stargate SG-1 and its spin-offs...

, and in atomic weapons. The liquid Naquadah power-sources modules used in staff weapons glow fluorescent green. One isotope of Naquadah, Naquadriah, has similar properties but in a more extreme form. (See below for Naquadriah.)
Naquadriah Stargate SG-1
Stargate SG-1
Stargate SG-1 is a Canadian-American adventure and military science fiction television series and part of Metro-Goldwyn-Mayer's Stargate franchise. The show, created by Brad Wright and Jonathan Glassner, is based on the 1994 feature film Stargate by Dean Devlin and Roland Emmerich...

 and Stargate Universe
Stargate Universe
Stargate Universe is a Canadian-American military science fiction television series and part of MGM's Stargate franchise. It follows the adventures of a present-day, multinational exploration team traveling on the Ancient spaceship Destiny many billions of light years distant from the Milky Way...

A heavier isotope of Naquadah. Naquadriah is not naturally occurring, however a chain reaction on the planet Langara was discovered by SG-1, slowly converting the planet's Naquadah deposits. Naquadriah is even more powerful and even more unstable than Naquadah—Icarus Base used it as a power source to dial the Stargate's ninth chevron and travel billions of light years.
Narrativium The Science of Discworld
The Science of Discworld
The Science of Discworld is a 1999 book by novelist Terry Pratchett and popular science writers Ian Stewart and Jack Cohen. Two sequels, The Science of Discworld II: The Globe and The Science of Discworld III: Darwin's Watch, have been written by the same authors.The book alternates between a...

,The Science of Discworld II: The Globe
The Science of Discworld II: The Globe
The Science of Discworld II: The Globe is a 2002 book written by the novelist Terry Pratchett and the popular science writers Ian Stewart and Jack Cohen...

An element unique to the Discworld
Discworld (world)
The Discworld is the fictional setting for all of Terry Pratchett's Discworld fantasy novels. It consists of a large disc resting on the backs of four huge elephants which are in turn standing on the back of an enormous turtle, named Great A'Tuin as it slowly swims...

; proto-substance from which all things spring forth. It is the fundamental element of Story, and is how things know what they are meant to be.
Necrodermis Warhammer 40,000
Warhammer 40,000
Warhammer 40,000 is a tabletop miniature wargame produced by Games Workshop, set in a dystopian science fantasy universe. Warhammer 40,000 was created by Rick Priestley in 1987 as the futuristic companion to Warhammer Fantasy Battle, sharing many game mechanics...

A metal used by the Necrons to build their war machines and bodies. It heals and grows like an organism and has other unknown properties. Originally developed to serve as hulls for relativistic star ships which needed to resist the radiation of space. The C'tan use physical avatars made of this material.
Necrogen Magic: The Gathering
Magic: The Gathering
Magic: The Gathering , also known as Magic, is the first collectible trading card game created by mathematics professor Richard Garfield and introduced in 1993 by Wizards of the Coast. Magic continues to thrive, with approximately twelve million players as of 2011...

A thick mist covering most parts of the Mephidross, it exists solely on Mirrodin
Mirrodin
Mirrodin was the 50th Magic: The Gathering set, the 30th expert level set, and the first set in the Mirrodin Block, released in October 2003. It is a 306-card expansion set. It is also the name of the block containing the Mirrodin, Darksteel and Fifth Dawn expansion sets...

. It can be crafted into a spellbomb. It consumes metal and flesh, turning living creatures into Nim
Nim
Nim is a mathematical game of strategy in which two players take turns removing objects from distinct heaps. On each turn, a player must remove at least one object, and may remove any number of objects provided they all come from the same heap....

, a kind of living zombie. Mephidross vampires use necrogen mists to turn other creatures into vampires without harming them.
Necronium GURPS Technomancer A magical, radioactive metal, similar to Plutonium
Plutonium
Plutonium is a transuranic radioactive chemical element with the chemical symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, forming a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation...

. The 'oz' particles it radiates causes the victim to join the undead. It is produced in nuclear reactors analogous to Pu
PU
PU or Pu may refer to:* A computer processing unit, such as central processing unit and graphics processing unit * Guinea-Bissau's NATO country code...

. Depleted Necronium, devoid of all magic, is very toxic to magical creatures.
Neosteel StarCraft
StarCraft
StarCraft is a military science fiction real-time strategy video game developed by Blizzard Entertainment. The first game of the StarCraft series was released for Microsoft Windows on 31 March 1998. With more than 11 million copies sold worldwide as of February 2009, it is one of the best-selling...

In StarCraft, neosteel is a super strong metal used to construct Terran Battlecruisers, processed from mineral crystals.
Neoteutonium Steel Horizon
Steel Horizon
Steel Horizon is a strategy game published by Konami for the Sony PlayStation Portable and Nintendo DS. It was released in March 2007 in the United States....

A powerful energy source gifted to the Nazis by the mysterious Babel Syndicate, hoping to turn the tide of World War II.
Nethicite Final Fantasy XII
Final Fantasy XII
is a console role-playing video game developed and published by Square Enix for the PlayStation 2. Released in 2006, it is the twelfth title in the Final Fantasy series and the last in the series to be released exclusively on the PlayStation platform...

A stone containing a large amount of magical energy. There are two types; Deifacted Nethicite created by the Occuria to be given only to their chosen ones, and Manufacted Nethicite created artificially in the labs of Draklor under supervision of Dr. Cidolfus Bunansa.
Neutrotope Blake's 7
Blake's 7
Blake's 7 is a British science fiction television series produced by the BBC for its BBC1 channel. The series was created by Terry Nation, a prolific television writer and creator of the Daleks for the television series Doctor Who. Four series of Blake's 7 were produced and broadcast between 1978...

In the episode Mission to Destiny agents from the planet Destiny are transporting a prism made of Neutrotope which they have mortgaged their planet to purchase. The substance can convert their star's sunlight, deficient in some frequencies, to a wavelength to kill the fungus plaguing their planet's plant life.
Nintendium UrbanDictionary, Internet meme, others The hardest, most durable material known to mankind, discovered by Nintendo for usage in their console, the Nintendo Entertainment System
Nintendo Entertainment System
The Nintendo Entertainment System is an 8-bit video game console that was released by Nintendo in North America during 1985, in Europe during 1986 and Australia in 1987...

. Its manufacturing process was perfected sometime before the creation of the Gameboy. Nintendium is also at least 10 times harder than diamonds.
Nitrium Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

A metal mined from asteroids, and used in dilithium
Dilithium (Star Trek)
In the Star Trek universe, dilithium is a fictional chemical element, although dilithium is also the scientific name for a molecule composed of two lithium atoms....

 chambers.
Nitron Flash Gordon's Trip to Mars
Flash Gordon's Trip to Mars
Flash Gordon's Trip to Mars is a 1938 serial film of 15 episodes, based on the comic strip Flash Gordon. It is the second of three Flash Gordon serials made between 1936 and 1940....

 (1938)
An element found in the atmosphere of the Earth, without which all life would cease to exist. In liquid form, Nitron could be used to fuel powerful weaponry on the planet Mars. Described in Episode One, "New Worlds to Conquer".
Nitrotrinanium Hot Tub Time Machine
Hot Tub Time Machine
Hot Tub Time Machine is a 2010 American science fiction adult comedy film directed by Steve Pink. Four men, all of them bored with their adult lives, travel back to their 1980s teen-hood, courtesy of a time-shifting hot tub. It stars John Cusack, Craig Robinson, Clark Duke, Kellee Stewart, Rob...

An ingredient in the illegal Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

n energy drink
Energy drink
Energy drinks are beverages whose producers advertise that they "boost energy." These advertisements usually do not emphasize energy derived from the sugar and caffeine they contain but rather increased energy release due to a variety of stimulants and vitamins....

 Chernobly, which somehow turns a hot tub
Hot tub
A hot tub is a large tub or small pool full of heated water and used for soaking, relaxation, massage, or hydrotherapy. In most cases, they have jets for massage purposes. Hot tubs are usually located outdoors, and are often sheltered for protection from the elements, as well as for privacy....

 into a temporal wormhole
Wormhole
In physics, a wormhole is a hypothetical topological feature of spacetime that would be, fundamentally, a "shortcut" through spacetime. For a simple visual explanation of a wormhole, consider spacetime visualized as a two-dimensional surface. If this surface is folded along a third dimension, it...

 generator when poured directly onto the control panel
Nitrowhisperin Get Smart
Get Smart
Get Smart is an American comedy television series that satirizes the secret agent genre. Created by Mel Brooks with Buck Henry, the show starred Don Adams , Barbara Feldon , and Edward Platt...

A substance similar to nitroglycerin apart from one major difference, that fact it does not make any noise when exploding. It was invented when trying to make silent fireworks for the Fourth of July, and was later used in an attempt to destroy the world.
Nocxium EVE Online
EVE Online
Eve Online is a video game by CCP Games. It is a player-driven, persistent-world MMORPG set in a science fiction space setting. Characters pilot customizable ships through a galaxy of over 7,500 star systems. Most star systems are connected to one or more other star systems by means of stargates...

A highly volatile mineral only formed during supernovae, thus severely limiting the extent of its distribution. Vital ingredient in capsule production, making it very coveted.
Novite RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

A weak purple metal found only in RuneScape's Daemonheim.
Nth metal
Nth metal
Nth metal is a fictional metal in the .-Fictional history:It is native to Thanagar, the home planet of Katar Hol and Shayera Thal, the Silver Age Hawkman and Hawkwoman. Among the unusual properties of Nth metal is the ability to negate gravity, allowing a person wearing an object made of Nth...

DC universe
DC Universe
The DC Universe is the shared universe where most of the comic stories published by DC Comics take place. The fictional characters Superman, Batman and Wonder Woman are well-known superheroes from this universe. Note that in context, "DC Universe" is usually used to refer to the main DC continuity...

Metal used in the weapons of Hawkman
Hawkman
Hawkman is a fictional superhero who appears in comic books published by DC Comics. Created by writer Gardner Fox and artist Dennis Neville, the original Hawkman first appeared in Flash Comics #1, published by All-American Publications in 1940....

, Hawkgirl
Hawkgirl
Hawkgirl is the name of several female fictional superhero characters, all owned by DC Comics and existing in that company's universe. The character is one of the first costumed female superheroes...

, and other characters from Thanagar
Thanagar
Thanagar is a fictional planet in the . Thanagar is the original home of the humanoid Thanagarian race, noted for the discovery of gravity-defying Nth metal...

, it confers the ability to fly, increased strength, and various other abilities on their wielders.
Nuridium Alias
Alias (TV series)
Alias is an American action television series created by J. J. Abrams which was broadcast on ABC for five seasons, from September 30, 2001 to May 22, 2006...

Unstable material used to generate energy, feature in Season 5
Alias episodes (Season 5)
The fifth and final season of the American drama/adventure television series Alias premiered September 29, 2005 on ABC and concluded May 22, 2006 and was released on DVD in region 1 on November 21, 2006. Guest stars in season five include Gina Torres....

.
Nvidium X series A rare, superconducting
Superconductivity
Superconductivity is a phenomenon of exactly zero electrical resistance occurring in certain materials below a characteristic temperature. It was discovered by Heike Kamerlingh Onnes on April 8, 1911 in Leiden. Like ferromagnetism and atomic spectral lines, superconductivity is a quantum...

 element which is used in production of jump gates. Considered precious by all races, nvidium is especially valuable to Kha'ak who build their homes in nvidium-rich asteroids.
Obdurium Dungeons & Dragons
Dungeons & Dragons
Dungeons & Dragons is a fantasy role-playing game originally designed by Gary Gygax and Dave Arneson, and first published in 1974 by Tactical Studies Rules, Inc. . The game has been published by Wizards of the Coast since 1997...

The only non-magical metal stronger than Adamantine in Dungeons & Dragons
Dungeons & Dragons
Dungeons & Dragons is a fantasy role-playing game originally designed by Gary Gygax and Dave Arneson, and first published in 1974 by Tactical Studies Rules, Inc. . The game has been published by Wizards of the Coast since 1997...

. Introduced in the 3rd edition "Stronghold Builder's Guidebook" rulebook.
Obsidium World of Warcraft: Cataclysm
World of Warcraft: Cataclysm
World of Warcraft: Cataclysm is the third expansion pack for the massively multiplayer online role-playing game World of Warcraft, following the last expansion Wrath of the Lich King. It was officially announced at BlizzCon on August 21, 2009, although dataminers and researchers discovered details...

A metal found in Azeroth.
Octiron and Octogen Discworld
Discworld
Discworld is a comic fantasy book series by English author Sir Terry Pratchett, set on the Discworld, a flat world balanced on the backs of four elephants which, in turn, stand on the back of a giant turtle, Great A'Tuin. The books frequently parody, or at least take inspiration from, J. R. R....

A dense black metal and a magical gas that is a large part of the Discworld's crust and makes up its atmosphere. Its melting point is above the range of metal forges. The gates of Unseen University
Unseen University
The Unseen University is a school of wizardry in Terry Pratchett's Discworld series of fantasy novels. Located in the city of Ankh-Morpork, the UU is staffed by a faculty composed of mostly indolent and inept old wizards. The university's name is a pun on the Invisible College...

 are made out of it. It is used to make magic needles and bells. It releases magical
Magic (paranormal)
Magic is the claimed art of manipulating aspects of reality either by supernatural means or through knowledge of occult laws unknown to science. It is in contrast to science, in that science does not accept anything not subject to either direct or indirect observation, and subject to logical...

 radiation, but if it becomes negatively polarized, it can be used to absorb such radiation. According to Unseen University, it generates significant amounts of heat under pressure, accounting for most of the volcanic
Volcanism
Volcanism is the phenomenon connected with volcanoes and volcanic activity. It includes all phenomena resulting from and causing magma within the crust or mantle of a planet to rise through the crust and form volcanic rocks on the surface....

 geological processes on Discworld.
Omega Star Trek: Voyager
Star Trek: Voyager
Star Trek: Voyager is a science fiction television series set in the Star Trek universe. Set in the 24th century from the year 2371 through 2378, the series follows the adventures of the Starfleet vessel USS Voyager, which becomes stranded in the Delta Quadrant 70,000 light-years from Earth while...

An unstable molecule capable of destructive explosions that also disrupt subspace
Subspace (Star Trek)
In the Star Trek fictional universe, subspace is a feature of space-time which facilitates faster-than-light transit, in the form of interstellar travel or the transmission of information. Subspace obeys different laws of physics...

, making warp travel impossible. A 'perfect' energy source, Seven of Nine
Seven of Nine
Seven of Nine is a fictional character on Star Trek: Voyager, portrayed by actress Jeri Ryan. Born human, she was assimilated by the Borg at the age of six. Eighteen years later, Voyager left Borg space with Seven on board, after attempts to negotiate passage through Borg space proved only...

 mentions that the Borg revere it religiously due to its perfection and multiple components working together perfectly. By contrast, the United Federation of Planets
United Federation of Planets
The United Federation of Planets, also known as "The Federation" is a fictional interplanetary federal republic depicted in the Star Trek television series and motion pictures...

 will ignore all other considerations, including the Prime Directive, to ensure the destruction of the particle.
Omnium steel Marvel Comics
Marvel Comics
Marvel Worldwide, Inc., commonly referred to as Marvel Comics and formerly Marvel Publishing, Inc. and Marvel Comics Group, is an American company that publishes comic books and related media...

A ferroalloy stronger than titanium though weaker than adamantium. There is also a form of omnium which possess elastic ductility while retaining high durability, which was somehow employed in a full-body epidermal supplantation procedure on the villainous character Warhawk
Warhawk (Marvel Comics)
Warhawk is a fictional character in the Marvel Universe.-Fictional character biography:Warhawk was a master assassin used by the C.I.A. in Vietnam who later went insane and battled Iron Fist. Later, Warhawk regained his sanity and became a costumed criminal for hire...

.
Onnesium GDW Traveller/Marc Miller's Traveller Rare element, atomic number 118, mildly radioactive and dangerous, which has been proved to be a viable room-temperature superconductor. Onnesium is normally found as small, silvery spheres embedded within meteoric nickel-iron.
Oozium 238 Advance Wars An element/enemy from Advance Wars. It first appeared in Dual Strike and can absorb or devour any enemy.
Orichalcum
Orichalcum
Orichalcum is a metal mentioned in several ancient writings, most notably the story of Atlantis as recounted in the Critias dialogue, recorded by Plato. According to Critias, orichalcum was considered second only to gold in value, and was found and mined in many parts of Atlantis in ancient times....

Mythology (Atlantis
Atlantis
Atlantis is a legendary island first mentioned in Plato's dialogues Timaeus and Critias, written about 360 BC....

), Fate of Atlantis, Shadowrun
Shadowrun
Shadowrun is a role-playing game set in a near-future fictional universe in which cybernetics, magic and fantasy creatures co-exist. It combines genres of cyberpunk, urban fantasy and crime, with occasional elements of conspiracy fiction, horror, and detective fiction.The original game has spawned...

, Exalted
Exalted
Exalted is a role-playing game published by White Wolf Publishing. The game is classified as high fantasy, but may be more accurately described as "mythic fantasy", as the developer specifically avoided drawing on J. R. R. Tolkien, but rather turned to a mixture of world mythologies for inspiration...

, Irregular Webcomic!
Irregular Webcomic!
Irregular Webcomic! is a webcomic created by David Morgan-Mar, an Australian physicist. The comic is illustrated photographically, primarily with Lego figures, although a few of the story arcs use role playing game miniatures. The comic debuted on 31 December 2002 and ended on 29 October 2011,...

, Star Ocean
Star Ocean
is a franchise of action role-playing video games developed by tri-Ace and published and owned by Square Enix .-Creation and influence:...

, Final Fantasy
Final Fantasy (video game)
is a fantasy role-playing video game created by Hironobu Sakaguchi, developed and first published in Japan by Square in 1987. It is the first game in Square's Final Fantasy series...

 (various), Age of Mythology (The Titans Expansion)
A metallic pink
Pink
Pink is a mixture of red and white. Commonly used for Valentine's Day and Easter, pink is sometimes referred to as "the color of love." The use of the word for the color known today as pink was first recorded in the late 17th century....

 colored metal mined in Atlantis; another name for it is mountain copper. May be based on Auricupride
Auricupride
Auricupride is a natural alloy that combines copper and gold. Its chemical formula is Cu3Au. The alloy crystallizes in the Cubic crystal system and occurs as malleable grains or platey masses. It is an opaque yellow with a reddish tint. It has a hardness of 3.5 and a specific gravity of 11.5.A...

. Used to power machinery in Atlantis
Atlantis
Atlantis is a legendary island first mentioned in Plato's dialogues Timaeus and Critias, written about 360 BC....

 in the Indiana Jones
Indiana Jones
Colonel Henry Walton "Indiana" Jones, Jr., Ph.D. is a fictional character and the protagonist of the Indiana Jones franchise. George Lucas and Steven Spielberg created the character in homage to the action heroes of 1930s film serials...

 adventure game. In the Exalted
Exalted
Exalted is a role-playing game published by White Wolf Publishing. The game is classified as high fantasy, but may be more accurately described as "mythic fantasy", as the developer specifically avoided drawing on J. R. R. Tolkien, but rather turned to a mixture of world mythologies for inspiration...

 setting Orichalcum is the strongest of the five magical materials and can be made by distilling mundane gold using Gaia's blood (Magma) and concentrating sunlight using large occult mirrors. Found in Final Fantasy as a rare material with varying properties. In the Soul Calibur
Soul Calibur
is a 3D, weapons-based fighting game developed by Project Soul and produced by Namco. It is the second game in the Soul series, preceeded by Soul Edge. It was released in arcades in 1998, and it ran on the Namco System 12 hardware. In 1999 it was ported to the Dreamcast with improved graphics and...

 series, Sophitia has a sword and shield set named Orichalcum. Also named "Orichalcon" in some games.
Oxyale Final Fantasy
Final Fantasy (video game)
is a fantasy role-playing video game created by Hironobu Sakaguchi, developed and first published in Japan by Square in 1987. It is the first game in Square's Final Fantasy series...

A strange liquid that produces oxygen. Used to breathe underwater.
Oxium Ultima: Worlds of Adventure 2: Martian Dreams
Martian Dreams
Ultima: Worlds of Adventure 2: Martian Dreams is a computer RPG set in the Ultima series, published in 1991. It uses the same engine as Ultima VI, as did the first Worlds of Ultima game, The Savage Empire....

A rock mined from geodes on Mars which when kept in the mouth provides enough oxygen for the user to breathe the Martian
Mars
Mars is the fourth planet from the Sun in the Solar System. The planet is named after the Roman god of war, Mars. It is often described as the "Red Planet", as the iron oxide prevalent on its surface gives it a reddish appearance...

 atmosphere. Also called "Oxy Rocks"
Oxypheromalkahyde Spaced
Spaced
Spaced is a British television sitcom written by and starring Simon Pegg and Jessica Stevenson, and directed by Edgar Wright. It is noted for its rapid-fire editing, frequent pop culture references and jokes, eclectic music, and occasional displays of surrealism and non-sequitur humour...

Metafiction—a steroid invented by Tim Bisley's character Doktor Mandrake, which unintentionally caused the mutation of The Bear
Pergium Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

A mineral mined in The Devil in the Dark and Prodigal Daughter
Phazite Piers Anthony
Piers Anthony
Piers Anthony Dillingham Jacob is an English American writer in the science fiction and fantasy genres, publishing under the name Piers Anthony. He is most famous for his long-running novel series set in the fictional realm of Xanth.Many of his books have appeared on the New York Times Best...

's Apprentice Adept
Apprentice Adept
Apprentice Adept is a seven-book fantasy and science fiction novel series by Piers Anthony. The series takes place on Phaze and Proton, two worlds occupying the same space in two different dimensional planes. Phaze is a lush planet of magic, where Proton is a barren mining planet of science...

 series
A mineral found only in the world of Phaze, it was the source of all magic energy. On Phaze's technological alternate world, Proton, its counterpart Protonite was a powerful energy source.
Phazon Metroid Prime
Metroid Prime
Metroid Prime is a video game developed by Retro Studios and Nintendo for the Nintendo GameCube, released in North America on November 17, 2002...

, Metroid Prime 2: Echoes
Metroid Prime 2: Echoes
Metroid Prime 2: Echoes, known as in Japan, is a first-person, action-adventure video game developed by Retro Studios and published by Nintendo for the GameCube video game console. It is the seventh game in the Metroid series, a direct sequel to Metroid Prime, and the first game in the series with...

, and Metroid Prime 3: Corruption
Metroid Prime 3: Corruption
Metroid Prime 3: Corruption is a first-person action-adventure game developed by Retro Studios and published by Nintendo for the Wii video game console. It is the tenth game in the Metroid series, and the final entry in the Metroid Prime trilogy—excluding two spin-off titles. It was released in...

A blue or occasionally orange mutagenic and (in high quantities) toxic substance which is actually a form of inorganic life
Alternative biochemistry
Hypothetical types of biochemistry are forms of biochemistry speculated to be scientifically viable but not proven to exist at this time. While the kinds of living beings we know on earth commonly use carbon for basic structural and metabolic functions, water as a solvent and DNA or RNA to define...

. Originates from the planet Phaaze, which sends out seeds called "Leviathans" to corrupt planets with it.
Parium Marooned In Marooned by John W. Campbell, Jr., the Jovian exploration ship Mercury was constructed from parium and synthium, elements which had great tensile strength
Tensile strength
Ultimate tensile strength , often shortened to tensile strength or ultimate strength, is the maximum stress that a material can withstand while being stretched or pulled before necking, which is when the specimen's cross-section starts to significantly contract...

.
Philote Ender's Game
Ender's Game
Ender's Game is a science fiction novel by American author Orson Scott Card. The book originated as the short story "Ender's Game", published in the August 1977 issue of Analog Science Fiction and Fact. Elaborating on characters and plot lines depicted in the novel, Card later wrote additional...

 series
An infinitely long "string" used biologically and mechanically for instantaneous communication.
Phlogiston Dungeons & Dragons
Dungeons & Dragons
Dungeons & Dragons is a fantasy role-playing game originally designed by Gary Gygax and Dave Arneson, and first published in 1974 by Tactical Studies Rules, Inc. . The game has been published by Wizards of the Coast since 1997...

' Spelljammer
Spelljammer
Spelljammer is a campaign setting for the Advanced Dungeons & Dragons role-playing game, which features a fantastical outer space environment....

 campaign series, World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

A highly flammable medium, similar to the interstellar medium
Interstellar medium
In astronomy, the interstellar medium is the matter that exists in the space between the star systems in a galaxy. This matter includes gas in ionic, atomic, and molecular form, dust, and cosmic rays. It fills interstellar space and blends smoothly into the surrounding intergalactic space...

, in which crystal spheres containing whole planetary systems are suspended; travel is conducted by "spelljammer ships". Named after the obsolete Phlogiston theory
Phlogiston theory
The phlogiston theory , first stated in 1667 by Johann Joachim Becher, is an obsolete scientific theory that postulated the existence of a fire-like element called "phlogiston", which was contained within combustible bodies and released during combustion...

. In World of Warcraft it is a source of Energy that powers the creations of Engineers.
Phostlite The Adventures of Tintin
The Adventures of Tintin
The Adventures of Tintin is a series of classic comic books created by Belgian artist , who wrote under the pen name of Hergé...

, The Shooting Star
The Shooting Star
The Shooting Star is the tenth of The Adventures of Tintin, a series of classic comic-strip books that were written and illustrated by Belgian writer and illustrator Hergé, featuring young reporter Tintin as a hero....

Discovered by Professor Decimus Phostle and, as the name suggests, is named after him. Exposure to this element causes small living things like insects and arachnids to grow rapidly to enormous size, as well as causing plants such as fruits to go through their growth cycle, making them become enormous versions of the plants that grow them and have them make more fruits all at an astounding rate. It also appears to have the odd ability to grow exploding mushrooms, sometimes at a rapid rate for short periods of time.
Photofine Steel Doctor Who—Planet of the Dead
Planet of the Dead
"Planet of the Dead" is the first 2009 special of the British science fiction television series Doctor Who that was simultaneously broadcast on BBC One and BBC HD on 11 April 2009. It was the second of five special episodes broadcast throughout 2009 and early 2010, which served as lead actor...

Seen in the Doctor Who episode, Planet of the Dead, photofine steel is a metal that gets colder the hotter the outside temperature is. It was seen on the Tritovore's space ship.
Photonium Voyager virtual season project Used in starship hull construction, this "photon matter" has almost no mass, allowing for impressive maneuverability. It can alter its refraction index to absorb a specific amount of light and energy before becoming overloaded and returning to its original state.
Phrikk Star Wars
Star Wars
Star Wars is an American epic space opera film series created by George Lucas. The first film in the series was originally released on May 25, 1977, under the title Star Wars, by 20th Century Fox, and became a worldwide pop culture phenomenon, followed by two sequels, released at three-year...

Within the Star Wars Expanded Universe
Star Wars Expanded Universe
The Star Wars Expanded Universe encompasses all of the officially licensed, fictional background of the Star Wars universe, outside of the six feature films produced by George Lucas. The expanded universe includes books, comic books, video games, spin-off films like Star Wars: The Clone Wars,...

 phrikk is a metal strong enough to withstand the destruction of an entire world.
Pizzazium Infinionite Phineas and Ferb
Phineas and Ferb
Phineas and Ferb is an American animated television comedy series. Originally broadcast as a preview on August 17, 2007, on Disney Channel, the series follows Phineas Flynn and his English stepbrother Ferb Fletcher on summer vacation. Every day the boys embark on some grand new project, which...

A chemical element with atomic number 104 and atomic weight of 261. Despite being the least abundant chemical element, it can be purchased at the Superduper Mega Superstore in Danville. Dr. Heinz Doofenshmirtz wanted to use it for one of his evil schemes. Baljeet also wanted the pizazzium for one of his science experiments, and Candace wanted it as a gift to Jeremy.
Plasteel Dune universe
Dune universe
Dune is a science fiction franchise which originated with the 1965 novel Dune by Frank Herbert. Considered by many to be the greatest science fiction novel of all time, Dune is frequently cited as the best-selling science fiction novel in history...

, Babylon 5
Babylon 5
Babylon 5 is an American science fiction television series created, produced and largely written by J. Michael Straczynski. The show centers on a space station named Babylon 5: a focal point for politics, diplomacy, and conflict during the years 2257–2262...

Extremely tough form of steel, "stabilized with stravidium (see Below) fibers grown into its crystal structure." In Babylon 5, a "plasteel crystalline alloy" is used as the armor of the Victory-class starships and this is capable of refracting 80% of directed energy weapons.
Plasti Steel Batman Beyond
Batman Beyond
Batman Beyond is an American animated television series created by Warner Bros. Animation in collaboration with DC Comics as a continuation of the Batman legacy...

A highly durable metalloid-alloy featured in episode "Disappearing Inque"
Inque
Inque is a fictional character from the DCAU series Batman Beyond. She is a shapeshifting femme fatale with an aversion to water and electricity. Inque can turn into a dark liquid and slide through the smallest cracks, or apply herself to the surface of an object in order to avoid detection...

, having practical application as an industrial sealant.
Polarite Flash Gordon Conquers the Universe
Flash Gordon Conquers the Universe
Flash Gordon Conquers the Universe is a 1940 twelve episode serial film about Flash Gordon. It was the last of three Flash Gordon serials made from 1936 to 1940. The serial was produced and copyrighted by Universal Pictures....

 (1940)
A mineral found only in the frozen wastes of Frigia on the planet Mongo. Polarite had the ability to attract and neutralize the energized dust used by Ming the Merciless to spread the "Purple Death" on Earth. Described in Episode Two, "Freezing Torture".
Primium Mage: The Ascension
Mage: The Ascension
Mage: The Ascension is a role-playing game based in the World of Darkness, and was published by White Wolf Game Studio. The characters portrayed in the game are referred to as mages, and are capable of feats of magic...

A material designed by the Technocracy to resist magical abilities. It is also tough enough to be used as armor plate.
Promethium Warhammer 40,000
Warhammer 40,000
Warhammer 40,000 is a tabletop miniature wargame produced by Games Workshop, set in a dystopian science fantasy universe. Warhammer 40,000 was created by Rick Priestley in 1987 as the futuristic companion to Warhammer Fantasy Battle, sharing many game mechanics...

, RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

General term for any petroleum-based fuel used by Imperial
Imperium (Warhammer 40,000)
The Imperium of Man is a fictional galactic empire of over a million planets that contains the vast majority of humans in the forty-first millennium, set in the Warhammer 40,000 universe created by Games Workshop....

 vehicles. Variations are used in Imperial flame throwers, described as highly volatile incendiary gel. Unlike the real life napalm
Napalm
Napalm is a thickening/gelling agent generally mixed with gasoline or a similar fuel for use in an incendiary device, primarily as an anti-personnel weapon...

, the weaponized Promethium self-combusts on contact with oxygen and can burn even when underwater or in vacuum. In RuneScape it appears as a red high-strength metal found only in Daemonheim.

Not to be confused with real element Promethium
Promethium
Promethium is a chemical element with the symbol Pm and atomic number 61. It is notable for being the only exclusively radioactive element besides technetium that is followed by chemical elements with stable isotopes.- Prediction :...

.
Protoculture Robotech
Robotech
Robotech is an 85-episode science fiction anime adaptation produced by Harmony Gold USA in association with Tatsunoko Production Co., Ltd. and first released in the United States in 1985...

A fuel source produced from the Invid Flower of Life by the Robotech Masters. It was discovered by the scientist Zor, who would later used it in the development Robotechnology. Eight quarts of protoculture can power a Veritech Alpha Fighter for days; one quart can power a Veritech Cyclone Rider.
Protonite Piers Anthony
Piers Anthony
Piers Anthony Dillingham Jacob is an English American writer in the science fiction and fantasy genres, publishing under the name Piers Anthony. He is most famous for his long-running novel series set in the fictional realm of Xanth.Many of his books have appeared on the New York Times Best...

's Apprentice Adept
Apprentice Adept
Apprentice Adept is a seven-book fantasy and science fiction novel series by Piers Anthony. The series takes place on Phaze and Proton, two worlds occupying the same space in two different dimensional planes. Phaze is a lush planet of magic, where Proton is a barren mining planet of science...

 series
A mineral found only on the planet Proton, it was used throughout the galaxy as a powerful energy source. On Proton's magical alternate world, Phaze, its counterpart Phazite was the source of magic energy.
Protosteel Bionicle
Bionicle
Bionicle is a line of toys by the LEGO Group marketed primarily for 5- to 16-year-olds. The line was launched on December 30, 2000 in Europe and June/July 2001 in Canada and the United States. "Bionicle" is a portmanteau constructed from the words "biological" and "chronicle"...

A special form of electricity-conducting metallic Protodermis. The hardest known form of metal in existence, it was created by the artisans of Artakha. It can be damaged by another object made of protosteel, multiple types of disintegrator/laser beams, and a type of metal-eating virus.
ProtoZortium Lilith: Operation Genesis In Ehud Gat's Lilith: Operation Genesis, ProtoZortium was an alloy of metal that was partially grafted unto biological matters (proteins, possibly). The matter was 20 times more resilient than steel and could partially deflect beam weapons (such as lasers). being quasi-alive, dents and holes would regenerate over time. The super-metal was used for armors of ships and the likes but could also be laced into the bones of a human subject to form a bond that turn the bones nearly indestructible.
Psitanium Psychonauts
Psychonauts
Psychonauts is a platform video game created by Tim Schafer, developed by Double Fine Productions and published by Majesco. The game was released on April 19, 2005, for the Xbox, April 26 for Microsoft Windows and June 21 for PlayStation 2. It was released on Steam on Oct 11, 2006, as an "Xbox...

An element that can bestow or amplify psychic powers or insanity. Delivered to Earth on a meteorite, Indians used them as arrowheads. In Whispering Rock Psychic Summer Camp, they are also used as currency.
Purralinium Doona series, Treaty at Doona A metal formed by stellar nova
Nova
A nova is a cataclysmic nuclear explosion in a star caused by the accretion of hydrogen on to the surface of a white dwarf star, which ignites and starts nuclear fusion in a runaway manner...

s. Extremely rare, an even rarer impure form is used in matter transmission
Teleportation
Teleportation is the fictional or imagined process by which matter is instantaneously transferred from one place to another.Teleportation may also refer to:*Quantum teleportation, a method of transmitting quantum data...

 technology. Conductive.
Pyerite EVE Online
EVE Online
Eve Online is a video game by CCP Games. It is a player-driven, persistent-world MMORPG set in a science fiction space setting. Characters pilot customizable ships through a galaxy of over 7,500 star systems. Most star systems are connected to one or more other star systems by means of stargates...

A soft crystal-like mineral with a very distinguishing orange glow as if on fire. used as conduit and in the bio-chemical industry. Commonly found in many asteroid-ore types. See Pyrite
Pyrite
The mineral pyrite, or iron pyrite, is an iron sulfide with the formula FeS2. This mineral's metallic luster and pale-to-normal, brass-yellow hue have earned it the nickname fool's gold because of its resemblance to gold...

.
PyrE The Stars My Destination
The Stars My Destination
The Stars My Destination is a science fiction novel by Alfred Bester. Originally serialized in Galaxy magazine in four parts beginning with the October 1956 issue, it first appeared in book form in the United Kingdom as Tiger! Tiger! – after William Blake's poem "The Tyger", the first verse...

The most powerful nuclear explosive ever created. It is activated via a telepathic signal.
Pyreal Asheron's Call
Asheron's Call
Asheron's Call is a fantasy MMORPG for Microsoft Windows-based PCs developed and published by Turbine Entertainment. It was published by Microsoft until 2004. Asheron's Call is set on the continent of Dereth and its surrounding islands on the fictional planet of Auberean...

Fictional metal found on the planet Auberean and used as currency and to forge weapons.
Quantium 40 Babylon 5
Babylon 5
Babylon 5 is an American science fiction television series created, produced and largely written by J. Michael Straczynski. The show centers on a space station named Babylon 5: a focal point for politics, diplomacy, and conflict during the years 2257–2262...

Used to construct jumpgates.
Quantonium Monsters vs. Aliens
Monsters vs. Aliens
Monsters vs. Aliens is a 2009 American computer-animated 3-D science fiction film produced by DreamWorks Animation and distributed by Paramount Pictures...

A luminous green energy described only as the most powerful substance in the universe. It can be found in very specific planetoids or is created in the conditions made by the planetoids when they explode. It can mutate humans' DNA and cause them to grow in size and strength and change the color of human hair, and it appears to have some energizing capabilities on machines.
Quassium B John Pudney
John Pudney
John Sleigh Pudney was a British journalist and writer. He was known for short stories, poetry, non-fiction and children's fiction .-Education:...

's Adventure books
Fictional element which featured in a number of books by John Pudney.
Radical Isotope Andromeda
Andromeda (TV series)
Andromeda is a Canadian-American science fiction television series, based on unused material by the late Star Trek creator Gene Roddenberry, developed by Robert Hewitt Wolfe, and produced by Roddenberry's widow, Majel Barrett Roddenberry. It starred Kevin Sorbo as High Guard Captain Dylan Hunt...

Radical isotopes are one of ten elements with negative atomic weights. They are used by the Spirit of the Abyss to control beings. Detecting radical isotopes reveals a being in league with The Abyss.
Radium X The Invisible Ray Radium X was an intensively radioactive extraterrestrial element discovered by Dr. Janos Rukh (Boris Karloff
Boris Karloff
William Henry Pratt , better known by his stage name Boris Karloff, was an English actor.Karloff is best remembered for his roles in horror films and his portrayal of Frankenstein's monster in Frankenstein , Bride of Frankenstein , and Son of Frankenstein...

) in the 1936 film the The Invisible Ray. In the film, Dr. Rukh creates a death beam
Death ray
The death ray or death beam was a theoretical particle beam or electromagnetic weapon of the 1920s through the 1930s that was claimed to have been invented independently by Nikola Tesla, Edwin R. Scott, Harry Grindell Matthews, and Graichen, as well as others...

 projector which harnesses the incredible power of Radium X for use as a destructive weapon of mass terror. Interestingly, Radium X also had healing powers. In a memorable scene, Rukh restores the sight of his blind mother (Violet Kemble Cooper) with the Radium X projector after developing a filter to curb its destructive effects. According to legend, this scene inspired John Lawrence
John H. Lawrence
John Hundale Lawrence was an American physicist and physician best known for pioneering the field of nuclear medicine. -Background:John Hundale Lawrence was born in Canton, South Dakota...

 (the younger brother of physicist Ernest Lawrence
Ernest Lawrence
Ernest Orlando Lawrence was an American physicist and Nobel Laureate, known for his invention, utilization, and improvement of the cyclotron atom-smasher beginning in 1929, based on his studies of the works of Rolf Widerøe, and his later work in uranium-isotope separation for the Manhattan Project...

) to use radiation on his mother—who had been diagnosed with inoperable cancer of the uterus.
Randomonium Scooby Doo 2: Monsters Unleashed A fluorescent green element which is a viscous liquid at room temperature, it enables costumes to become the creatures they represent.
Randsdell's Metal When Worlds Collide
When Worlds Collide
When Worlds Collide is a 1933 science fiction novel co-written by Philip Wylie and Edwin Balmer; they both also co-authored the sequel After Worlds Collide...

An infusible metal of extreme strength used to insulate nuclear rocket engine nozzles in the novel When Worlds Collide.
Raritanium Ratchet & Clank
Ratchet & Clank (series)
Ratchet & Clank is a series of platform video games. The franchise was created and developed by Insomniac Games and published by Sony Computer Entertainment for the PS2 and PS3 consoles, with the exclusion of Size Matters and Secret Agent Clank, which were developed by High Impact Games for the PSP...

A rare metal that is used for various upgrades in the game. It is also extremely hard and is used to produce armor, and the Omega Doom Blades and the Ryno 4EVER are some of the few weapons that can penetrate it. Its only other purpose is for purchasing the Gold Groovitron, which gives the owner unlimited groovitrons.
Rearden Metal Atlas Shrugged
Atlas Shrugged
Atlas Shrugged is a novel by Ayn Rand, first published in 1957 in the United States. Rand's fourth and last novel, it was also her longest, and the one she considered to be her magnum opus in the realm of fiction writing...

In Ayn Rand
Ayn Rand
Ayn Rand was a Russian-American novelist, philosopher, playwright, and screenwriter. She is known for her two best-selling novels The Fountainhead and Atlas Shrugged and for developing a philosophical system she called Objectivism....

's Atlas Shrugged
Atlas Shrugged
Atlas Shrugged is a novel by Ayn Rand, first published in 1957 in the United States. Rand's fourth and last novel, it was also her longest, and the one she considered to be her magnum opus in the realm of fiction writing...

, Rearden metal is a greenish-blue alloy
Alloy
An alloy is a mixture or metallic solid solution composed of two or more elements. Complete solid solution alloys give single solid phase microstructure, while partial solutions give two or more phases that may or may not be homogeneous in distribution, depending on thermal history...

 invented by Hank Rearden. Lighter and stronger than traditional steel
Steel
Steel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...

, it is to steel what steel was to iron. Among its ingredients are iron
Iron
Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal in the first transition series. It is the most common element forming the planet Earth as a whole, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust...

 and copper
Copper
Copper is a chemical element with the symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; an exposed surface has a reddish-orange tarnish...

, two metals seldom found together in real-world structural alloys.
Red matter Star Trek (film) Red matter is a fictional substance that appears in J.J. Abrams' 2009 film Star Trek and the lead-in comic book Star Trek: Countdown
Star Trek: Countdown
Star Trek: Countdown is a four-issue comic book prequel to the 2009 film Star Trek by IDW Publishing. It follows the characters of Spock and the Romulan Nero during the year 2387, detailing the events that cause them to travel to the 23rd century...

. The rare mineral decalithium is processed into red matter that creates a black hole when it comes in contact with nuclear matter
Nuclear matter
Nuclear matter is an idealized system of interacting nucleons that exists in several phases that as yet are not fully established...

. It is used in an attempt to avert an impending natural disaster, and to destroy a planet. See also the "red ball" created by the Milo Rambaldi
Milo Rambaldi
Milo Giacomo Rambaldi is a fictional person from the American television series Alias. The work of Rambaldi, often centuries ahead of its time and tied to prophecy, plays a central role in the show.According to Alias creator J.J...

 inspired Mueller device
Mueller device
A Mueller device is a mysterious piece of technology in the US television series Alias. It usually appears as a hook-shaped armature which levitates a red-orange liquid-filled sphere. It is named for Oskar Mueller, a chemist who was believed to have invented it, though it is later revealed to have...

 on the TV show Alias
Alias (TV series)
Alias is an American action television series created by J. J. Abrams which was broadcast on ABC for five seasons, from September 30, 2001 to May 22, 2006...

, also by Abrams.
Red Rain
Blood rain
Blood rain or red rain is a phenomenon in which blood is perceived to fall from the sky in the form of rain. Cases have been recorded since Homer's Iliad, composed ca eighth century BC, and are widespread. Before the 17th century it was generally believed that the rain was actually blood...

V (TV Series 2011) A red hued rain which purports to cure effects of global warming, but is actually a form of phosphorus with ill-intention.
Red Stone Fullmetal Alchemist
Fullmetal Alchemist
, is a Japanese manga series written and illustrated by Hiromu Arakawa. The world of Fullmetal Alchemist is styled after the European Industrial Revolution...

A reddish stone made with the Red Water, a high-toxic liquid. It is used as an alchemic amplifier, as it amplifies the transmutation power of alchemists. It is also known as the incomplete Philosopher's Stone, because it has similar properties.
Relux Arcot, Wade, and Morey stories by John W. Campbell Material created from light; indestructible and totally reflective. Used in the hull of the heroes' spaceships, among other things. See also Lux.
Residuum Dungeons & Dragons
Dungeons & Dragons
Dungeons & Dragons is a fantasy role-playing game originally designed by Gary Gygax and Dave Arneson, and first published in 1974 by Tactical Studies Rules, Inc. . The game has been published by Wizards of the Coast since 1997...

 4th Edition
A fine, golden dust that results from disenchanting a magic item. It is sometimes traded as currency, measured by weight. 10,000 gold worth of residuum weighs as much as a single gold piece, with one pound being worth 500,000 gold pieces.
Resistium The Incredible Planet
The Incredible Planet
The Incredible Planet is a science fiction fix-up novel by American author John W. Campbell, Jr.. It was published in 1949 by Fantasy Press in an edition of 3,998 copies. The novel is a collection of three linked novelettes that were not accepted for the magazine Astounding...

The "hydrogen
Hydrogen
Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an average atomic weight of , hydrogen is the lightest and most abundant chemical element, constituting roughly 75% of the Universe's chemical elemental mass. Stars in the main sequence are mainly...

" of the "ultra-elements" (which had an atomic structure consisting of a nucleus of "negatrons," orbital protons and without any electrons present in the atom at all), resistium was many times stronger than steel or titanium and had unique chemical and electromagnetic properties. First featured in The Incredible Planet by John W. Campbell, Jr.
Rune essence/pure essence RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

A strange stone that is able to contain magic energy, which can be released at the owner's will. Pure essence is purer that rune essence and so can contain more complex and powerful magic. The essence is mined from large stones in a strange place accessed from a portal.
Runestone Lost Kingdoms
Lost Kingdoms
Lost Kingdoms is a fantasy video game developed by From Software and published by Activision in North America and Europe. The original Japanese version of this game is simply known as . The game was released in Japan on April 25, 2002; in North America on May 27, 2002; and in Europe on August 9, 2002...

A stone that allows the holder to unleash the powers of the monsters trapped within their card decks. Runestone is often made artificially which is less potent.
Runite RuneScape
RuneScape
RuneScape is a fantasy massively multiplayer online role-playing game released in January 2001 by Andrew and Paul Gower, and developed and published by Jagex Games Studio. It is a graphical browser game implemented on the client-side in Java, and incorporates 3D rendering...

A light blue metal that is stronger than mithril or adamantite.
Sakuradite Code Geass An element, plentiful in Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

 but rare elsewhere, that possesses incredible superconductive properties. It is used to generate and channel energy in great quantities, and is an essential component of Knightmare Frame
Knightmare Frame
, or simply Knightmares, officially designated as the Humanoid Autonomous Armored Knight, are a form of mecha in the Sunrise anime series Code Geass: Lelouch of the Rebellion. In the series, they were developed by the Holy Britannian Empire...

s' propulsion systems.
Saronite World of Warcraft: Wrath of the Lich King
World of Warcraft: Wrath of the Lich King
World of Warcraft: Wrath of the Lich King, often referred to as WotLK, WLK or Wrath, is the second expansion set for the massively multiplayer online role-playing game World of Warcraft, following The Burning Crusade...

A very strong mineral found in Northrend. It is usually sickly green or ice-blue. Saronite is the hardened blood of the Old God, Yogg-Saron, who is imprisoned within the Titan vault, Ulduar. Used by the Undead Scourge to build their fortresses and war machines.
Schwartz, liquid Spaceballs
Spaceballs
Spaceballs is a 1987 American science fiction comedy parody film co-written by, directed by, Mel Brooks and starring Bill Pullman, John Candy, Mel Brooks & Rick Moranis. It also features, Daphne Zuniga, Dick Van Patten, and the voice of Joan Rivers. The film was released by Metro-Goldwyn-Mayer on...

 by Mel Brooks
Mel Brooks
Mel Brooks is an American film director, screenwriter, composer, lyricist, comedian, actor and producer. He is best known as a creator of broad film farces and comic parodies. He began his career as a stand-up comic and as a writer for the early TV variety show Your Show of Shows...

A potent spaceship fuel, a small amount of which can propel a space Winnebago incredible distances.
Scrith Ringworld
Ringworld
Ringworld is a Hugo, Nebula, and Locus award-winning 1970 science fiction novel by Larry Niven, set in his Known Space universe and considered a classic of science fiction literature. It is followed by three sequels, and preceded by four prequels, and ties into numerous other books set in Known Space...

 by Larry Niven
Larry Niven
Laurence van Cott Niven / ˈlæri ˈnɪvən/ is an American science fiction author. His best-known work is Ringworld , which received Hugo, Locus, Ditmar, and Nebula awards. His work is primarily hard science fiction, using big science concepts and theoretical physics...

A semi-translucent, impossibly strong material, somewhat ductile under massive force, that is used as the foundation of the Ringworld. It has a strength similar to the force which binds atomic nuclei. It also has the ability to hold strong magnetic fields, meaning it is a para-magnetic substance. Compare Neutronium
Neutronium
Neutronium is a proposed name for a substance composed purely of neutrons. The word was coined by scientist Andreas von Antropoff in 1926 for the conjectured "element of atomic number zero" that he placed at the head of the periodic table...

.
Shazamium Shazam! Invented by Captain Marvel's nemesis, Sivana. Its atomic number is 98 (which has since been discovered and named Californium)
Sheol Fury3
Fury3
Fury3 is a video game developed by Terminal Reality and published by Microsoft in 1995 for Microsoft Windows. It is not a sequel to Terminal Velocity, but the two games share basic game mechanics and use the same engine...

Sheol, also known as red sheol, is a metal in the game Fury3. The isomorphic decay of this mineral attracts wormholes. Sheol is only found in the topsoil of the planet Ares.
Silverium Motherload One of many fictional elements mined from Mars
Mars
Mars is the fourth planet from the Sun in the Solar System. The planet is named after the Roman god of war, Mars. It is often described as the "Red Planet", as the iron oxide prevalent on its surface gives it a reddish appearance...

Sinisite Sinistar
Sinistar
Sinistar is an arcade game released by Williams in 1982. It belongs to a class of video games from the 1980s called "twitch games". Other "twitch games" include Tempest, Defender, and Robotron: 2084. Sinistar was developed by Sam Dicker, Jack Haeger, Noah Falstein, RJ Mical and Richard Witt...

 videogame series
A high-energy material occurring naturally in crystalline form, it is found in white (1983 original game) or blue and green (1999's Sinistar: Unleashed) variants, usually mined from asteroids. It is used in the building of pieces of technology, or purified to form the high-explosive weapons known as Sinibombs.
Sivanium Shazam! Invented by Captain Marvel's nemesis, Sivana. Its atomic number is 97 (which has since been discovered and named Berkelium)
Sky Iron His Dark Materials
His Dark Materials
His Dark Materials is a trilogy of fantasy novels by Philip Pullman comprising Northern Lights , The Subtle Knife , and The Amber Spyglass...

A superior type of metal used by the panserbjorn (armored bears) of the North, compared to which other metals are worthless. Presumably originates from meteorites.
Solarbonite Plan 9 from Outer Space
Plan 9 from Outer Space
Plan 9 from Outer Space is a 1959 science fiction film written and directed by Edward D. Wood, Jr. The film features Gregory Walcott, Mona McKinnon, Tor Johnson and Maila "Vampira" Nurmi...

A high-energy substance found on Earth and possibly other planets. It is capable of exploding the particles that make up sunlight itself. If contained in a weapon, it can set off a chain reaction that explodes sunlight, along with anything the exploding sunlight touches, that will eventually destroy the universe, possibly at the speed of light itself.
Solarite Flash Gordon Conquers the Universe
Flash Gordon Conquers the Universe
Flash Gordon Conquers the Universe is a 1940 twelve episode serial film about Flash Gordon. It was the last of three Flash Gordon serials made from 1936 to 1940. The serial was produced and copyrighted by Universal Pictures....

 (1940)
An unstable mineral with great explosive power found on the planet Mongo. Solarite was to be the ultimate weapon employed by Ming the Merciless against the people of Earth. Described in Episode Twelve, "Doom of the Dictator".
Solenite Battlestar Galactica
Battlestar Galactica
Battlestar Galactica is an American science fiction franchise created by Glen A. Larson. The franchise began with the Battlestar Galactica TV series in 1978, and was followed by a brief sequel TV series in 1980, a line of book adaptations, original novels, comic books, a board game, and video games...

A fictional substance in the original version of the science fiction series Battlestar Galactica. It may or may not be derived from solium.
Solid Protodermis Bionicle
Bionicle
Bionicle is a line of toys by the LEGO Group marketed primarily for 5- to 16-year-olds. The line was launched on December 30, 2000 in Europe and June/July 2001 in Canada and the United States. "Bionicle" is a portmanteau constructed from the words "biological" and "chronicle"...

It comes in various forms. Rock-like Protodermis can be controlled by a Toa of Stone. It was mined and collected with a Sluice in Onu-Koro and Onu-Metru. It is used as a medium for carvings. Metal-like Protodermis can be controlled by a Toa of Iron. Special types of metal Protodermis exist, like the precious metals that the Toa Hagah's armor is made of. Ice-like Protodermis can be controlled by a Toa of Ice. Crystal-like Protodermis is used for the same purpose as glass.
Solinium Artemis Fowl
Artemis Fowl (series)
Artemis Fowl is a series of fantasy novels written by Irish author Eoin Colfer and all the books are best sellers, starring the teenage criminal mastermind Artemis Fowl II. The author summed up the series as: "Die Hard with fairies." There are seven novels in the series; the first was published in...

A fictional radioactive material used by fairies to create short lasting bio-bomb that eliminates any living organism in its radius. The solinium in the bomb has a half-life of 14 seconds, and its radius can be controlled via computer. The depleted form is also used as a homing device sprayed on fairy equipment.
Solinite Star Command: Revolution
Star Command: Revolution
Star Command: Revolution is a real-time strategy game by Metropolis Digital, Inc., now Metro3D, Inc., and published by GT Interactive. It was originally released in 1996 for DOS, but it was re-released in 1998 for Windows 95/98 under the title Star Command Deluxe...

A powerful source of energy found within the Zeta Galaxy. Its discovery strained the already-present tensions between the races, resulting in all-out war.
Solium Battlestar Galactica
Battlestar Galactica
Battlestar Galactica is an American science fiction franchise created by Glen A. Larson. The franchise began with the Battlestar Galactica TV series in 1978, and was followed by a brief sequel TV series in 1980, a line of book adaptations, original novels, comic books, a board game, and video games...

In original Battlestar Galactica television series, Solium is the Colonial term for Hydrogen
Hydrogen
Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an average atomic weight of , hydrogen is the lightest and most abundant chemical element, constituting roughly 75% of the Universe's chemical elemental mass. Stars in the main sequence are mainly...

. The show's depiction of an explosive fuel that is associated with the Latin
Latin
Latin is an Italic language originally spoken in Latium and Ancient Rome. It, along with most European languages, is a descendant of the ancient Proto-Indo-European language. Although it is considered a dead language, a number of scholars and members of the Christian clergy speak it fluently, and...

 term for the sun Sol
Sun
The Sun is the star at the center of the Solar System. It is almost perfectly spherical and consists of hot plasma interwoven with magnetic fields...

 is a dead giveaway.
Solium Blake's 7
Blake's 7
Blake's 7 is a British science fiction television series produced by the BBC for its BBC1 channel. The series was created by Terry Nation, a prolific television writer and creator of the Daleks for the television series Doctor Who. Four series of Blake's 7 were produced and broadcast between 1978...

A highly radioactive element utilized by the Terran Federation in a neutron bomb
Neutron bomb
A neutron bomb or enhanced radiation weapon or weapon of reinforced radiation is a type of thermonuclear weapon designed specifically to release a large portion of its energy as energetic neutron radiation rather than explosive energy...

-type doomsday weapon to hold down hostile planets without a large military garrison.
Soulsteel Exalted
Exalted
Exalted is a role-playing game published by White Wolf Publishing. The game is classified as high fantasy, but may be more accurately described as "mythic fantasy", as the developer specifically avoided drawing on J. R. R. Tolkien, but rather turned to a mixture of world mythologies for inspiration...

The newest and the second strongest of the five magical materials, formed by alloying human souls and ore dredged up from the nightmares of dead elder gods that teeter upon the edge of oblivion. They always bring with them the chill of the abyss.
Space Alloy Gren This is the metal utilized to construct the eponymous Grendizer of the anime series Grendizer. The metal seems highly similar to Chogokin Z, another fictional metal used to construct mechs.
Specium Ultraman Dyna
Ultraman Dyna
is a Japanese tokusatsu TV show which aired between September 6, 1997 to August 29, 1998. The series is a direct sequel to the previous Ultraman series, Ultraman Tiga.-Plot:...

An element found only on Mars, used to power extremely powerful energy weapons.
Stardust Stardust
Stardust (novel)
Stardust is the first solo prose novel by Neil Gaiman. It is usually published as a novel with illustrations by Charles Vess. Stardust has a different tone and style from most of Gaiman's prose fiction, being consciously written in the tradition of pre-Tolkien English fantasy, following in the...

The remnants of a fallen star brought into the waking world from the magical land of Faerie.
Star Metal Archaic term An old term probably used to refer to magnetic metals or metals found in meteorites.
Starmetal Exalted
Exalted
Exalted is a role-playing game published by White Wolf Publishing. The game is classified as high fantasy, but may be more accurately described as "mythic fantasy", as the developer specifically avoided drawing on J. R. R. Tolkien, but rather turned to a mixture of world mythologies for inspiration...

The rarest of the five magical materials, created by the remaining essence of fallen gods.
Starmetal Conan The Adventurer
Conan the Adventurer (animated series)
Conan the Adventurer is an American animated television series adaptation of Conan the Barbarian, the literary character created by Robert E. Howard in the 1930s. Produced by Jetlag Productions and Sunbow Productions, the series debuted on September 12, 1992, ran for 65 episodes and concluded on...

A metal with magical properties found in fallen meteors. Can be forged into weapons that banish Serpent Men.
Stealth ore Artemis Fowl
Artemis Fowl
Artemis Fowl may refer to:* Artemis Fowl , a series of novels by Eoin Colfer** Artemis Fowl , the first book in the series** Artemis Fowl II, main character of the series** Artemis Fowl I, father of Artemis Fowl II...

A metal that absorbs all known wavelengths of light, making it invisible to all forms of electronic eye. It is very expensive to manufacture.
Stravidium Dune universe
Dune universe
Dune is a science fiction franchise which originated with the 1965 novel Dune by Frank Herbert. Considered by many to be the greatest science fiction novel of all time, Dune is frequently cited as the best-selling science fiction novel in history...

An apparently fibrous component of Plasteel
Plasteel
Plasteel may refer to:*Plasteel, composite of fiberglass and steel patented by automobile manufacturer Gurgel and first used in 1973*Plasteel , a durable tough form of steel mentioned by Frank Herbert in his 1965 science fiction novel Dune and its sequels*Plasteel , steel-reinforced plastic...

 which is described as being "stabilized with stravidium fibers grown into its crystal structure."
Stormphrax The Edge Chronicles
The Edge Chronicles
The Edge Chronicles is a young-adult fantasy novel series by Paul Stewart and Chris Riddell. It consists of three trilogies, plus three additional books, and others . Originally published in the United Kingdom, this series has since been published in the United States, Canada and Australia. To...

Very powerful material, in dark, it is supremely heavy, in light, it is lighter the... well, sunlight. Created in thunderstorms, it is the physical result of a lightning bolt. Precisely at twilight, it can be crushed, purifying water, no matter how contaminated. Blades made of stormphrax can be devastating, having the force of lighting.
Strongium 90 1987 Teenage Mutant Ninja Turtles cartoon
Teenage Mutant Ninja Turtles (1987 TV series)
Teenage Mutant Ninja Turtles is an American animated television series produced by Murakami-Wolf-Swenson. The pilot was shown during the week of December 28, 1987 in syndication as a five part miniseries and began its official run on October 1, 1988...

Used by gym owner Wally Airhead and his men in the episode "Leonardo Cuts Loose". Provides the user with strength.
Stygium Discworld
Discworld
Discworld is a comic fantasy book series by English author Sir Terry Pratchett, set on the Discworld, a flat world balanced on the backs of four elephants which, in turn, stand on the back of a giant turtle, Great A'Tuin. The books frequently parody, or at least take inspiration from, J. R. R....

Dull black metal which heats up in the presence of light; direct sunlight causes it to burn or explode. Typically made into rings which are always worn under a glove, usually by alumni of the Assassins Guild
Ankh-Morpork Assassins' Guild
The Ankh-Morpork Assassins' Guild is a fictional school for professional killers in Terry Pratchett's long-running Discworld series of fantasy novels...

 because of the colour.
Submarinum The Tunnel
The Tunnel (novel)
The Tunnel is William H. Gass's 1995 magnum opus that took 26 years to write and earned him the American Book Award of 1996. It was also a finalist for the PEN/Faulkner award....

New element found in the seabed rock of the Atlantic Ocean
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

 while builing the transcontinental tunnel in Bernhard Kellermann
Bernhard Kellermann
Bernhard Kellermann was a well known German author and poet.- Life :Bernhard Kellermann enrolled in 1899 at Munich's Technical University initially in general studies, but later focused on German literature and painting....

's novel.
Supermanium DC Comics
DC Comics
DC Comics, Inc. is one of the largest and most successful companies operating in the market for American comic books and related media. It is the publishing unit of DC Entertainment a company of Warner Bros. Entertainment, which itself is owned by Time Warner...

"The strongest metal known to science!...forged by him (Superman
Superman
Superman is a fictional comic book superhero appearing in publications by DC Comics, widely considered to be an American cultural icon. Created by American writer Jerry Siegel and Canadian-born American artist Joe Shuster in 1932 while both were living in Cleveland, Ohio, and sold to Detective...

) from the heart of a mighty star!" A metallic ore designed to mimic Superman’s powers, as well as intensify a red star's weak radiation output to render it identical to the far stronger output of a yellow star and even absorb kryptonite radiation. Harder and denser even than the diamond
Diamond
In mineralogy, diamond is an allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice. Diamond is less stable than graphite, but the conversion rate from diamond to graphite is negligible at ambient conditions...

 allotrope of carbon, supermanium apparently ceased to exist after the Crisis on Infinite Earths
Crisis on Infinite Earths
Crisis on Infinite Earths is a 12-issue American comic book limited series and crossover event, produced by DC Comics in 1985 to simplify its then 50-year-old continuity...

.
Supremium Supreme An element that gave Supreme his powers of flight, super strength, and more. Supremium appears throughout the comics in many colors, each one with a different reality-altering effect. White Supremium is fatal to Supreme, amber Supremium warps time, onyx Supremium erases time, sapphire Supremium affects probabilities, ruby Supremium transmutes matter, and violet Supremium has random effects which often include transmutation.
Synthium Marooned In Marooned by John W. Campbell, Jr., the Jovian exploration ship Mercury was constructed from parium and synthium, metallic super elements which had great tensile strength.
Tarydium Unreal
Unreal
Unreal is a first-person shooter video game developed by Epic MegaGames and Digital Extremes and published by GT Interactive in May 1998...

 computer game
Blue crystals that the enslaved race of Nali is forced to mine; Tarydium shards also serve as ammunition for the Stinger weapon.
Thaesium Doctor Who
Doctor Who
Doctor Who is a British science fiction television programme produced by the BBC. The programme depicts the adventures of a time-travelling humanoid alien known as the Doctor who explores the universe in a sentient time machine called the TARDIS that flies through time and space, whose exterior...

 serial The Mutants
The Mutants
The Mutants is a serial in the British science fiction television series Doctor Who, which was first broadcast in six weekly parts from 8 April to 13 May 1972....

Radioactive element used as fuel for spaceships of the Earth Empire during the 30th century that also serves an important role in the lifecycle of the native inhabitants of the planet Solos.
Terrazine StarCraft II: Wings of Liberty Similar to Vespene Gas (see Below), but with added Organic compounds that induce Psionic abilities. Used by Tosh to enhance the Psychic powers of his Spectre Agents
Titanium-A Halo
Halo (series)
Halo is a multi-million dollar science fiction video game franchise created by Bungie and now managed by 343 Industries and owned by Microsoft Studios. The series centers on an interstellar war between humanity and a theocratic alliance of aliens known as the Covenant...

In the Halo series, Titanium-A Armor is composed of a high-grade Titanium-50 alloy, specially strengthened at the molecular level. Titanium-A has numerous uses throughout the UNSC due largely to titanium being lightweight and extremely strong, with a high tolerance to heat. It took new found importance after the beginning of the Human-Covenant War; To contend with the Covenant's plasma weaponry, Humans needed armor that would withstand the heat of the directed plasma. Despite its strength and resistance to heat, the Titanium-A plating is usually boiled away within seconds, and does not effectively dissipate the plasma. Its primary use is as armor for ships. UNSC Frigates have sixty centimeters of plating on their hull, and UNSC Destroyers have up to two meters of plating. Larger ships were known to have even more, such as ten meters to a supercarrier. The UNSC uses Titanium-A for construction of bases as well, to make them less susceptible to destruction. Places such as HIGHCOM Facility Bravo-6, CASTLE Base and Camp Hathcock used Titanium-A armor in their superstructures.
Thiotimoline
Thiotimoline
Thiotimoline is a fictitious chemical compound conceived by science fiction author Isaac Asimov and first described in a spoof scientific paper titled "The Endochronic Properties of Resublimated Thiotimoline" in 1948...

Isaac Asimov
Isaac Asimov
Isaac Asimov was an American author and professor of biochemistry at Boston University, best known for his works of science fiction and for his popular science books. Asimov was one of the most prolific writers of all time, having written or edited more than 500 books and an estimated 90,000...

Chemical compound first described in a spoof scientific paper titled "The Endochronic Properties of Resublimated Thiotimoline" in 1948. The chemical actually begins to dissolve before it contacts water.
Thorium World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

Metal found on Azeroth that has a silvery green tint and is said to be as strong as steel but as heavy as lead. Used to construct heavier weapons and armour. Should not be confused with the real life Thorium
Thorium
Thorium is a natural radioactive chemical element with the symbol Th and atomic number 90. It was discovered in 1828 and named after Thor, the Norse god of thunder....

. Also, the best type of fuel cell in the Master of Orion
Master of Orion
Master of Orion is a turn-based, 4X science fiction computer strategy game released in 1993 by MicroProse on the MS-DOS and Mac OS operating systems. The purpose of the game is to lead one of ten races to dominate the galaxy through a combination of diplomacy and conquest while developing...

 series.
Thyrium Matthew Reilly
Matthew Reilly
Matthew John Reilly is an Australian action thriller writer. His novels are noted for their fast pace, twisting plots and intense action.- Biography :...

's Temple
A rare element only observed in meteorite crater walls. It is stable, trans-uranic, non-radioactive and fissionable—producing more energy than either Uranium or Plutonium without generating waste products or measurable radiation.
Tibanna Star Wars Expanded Universe
Star Wars Expanded Universe
The Star Wars Expanded Universe encompasses all of the officially licensed, fictional background of the Star Wars universe, outside of the six feature films produced by George Lucas. The expanded universe includes books, comic books, video games, spin-off films like Star Wars: The Clone Wars,...

A metallic gas mined from certain gas giants (notably Bespin
Bespin
Bespin is a fictional planet, a gas giant in Star Wars films and books. The planet was first seen in the 1980 feature film Star Wars Episode V: The Empire Strikes Back...

), it has many high-tech applications including use as high quality hyperdrive
Hyperdrive
Hyperdrive is a name given to certain methods of traveling faster-than-light in science fiction. Related concepts are jump drive and warp drive....

 coolant and to increase the effectiveness of blaster weapons.
Tiberium
Tiberium
Tiberium or Ichor is a fictional substance that is central to the plot of much of the Command & Conquer series of real-time strategy video games...

Command & Conquer series
Command & Conquer series
Command & Conquer is a video game franchise, mostly of the real-time strategy style as well as a first-person shooter game based on the former...

Typically green, it is named after the Tiber River although the Brotherhood Of Nod claims it is named after the emperor Tiberius
Tiberius
Tiberius , was Roman Emperor from 14 AD to 37 AD. Tiberius was by birth a Claudian, son of Tiberius Claudius Nero and Livia Drusilla. His mother divorced Nero and married Augustus in 39 BC, making him a step-son of Octavian...

. It leaches metals out of the soil, concentrating them in crystals leaving the landscape depleted. It also converts other matter into more tiberium. Human exposure to this element can trigger mutations, but it more often proves fatal.
Timonium Rise of Nations: Rise of Legends
Rise of Nations: Rise of Legends
Rise of Nations: Rise of Legends is a real-time strategy game for the PC made by Big Huge Games, and published by Microsoft. It is a spin off of the popular game Rise of Nations, released in May 2003. However, rather than being a historical game, it is based in a fantasy world, where technology and...

Initially mined from the ground as an ore, it is used both to construct new technology and provide energy.
Tiny Atoms Futurama
Futurama
Futurama is an American animated science fiction sitcom created by Matt Groening and developed by Groening and David X. Cohen for the Fox Broadcasting Company. The series follows the adventures of a late 20th-century New York City pizza delivery boy, Philip J...

Presumably essentially the same as regular atoms, except much smaller. They are vital to the process of shrinking, but are very expensive, making the construction of remote-controlled "microdroids" a more economical option.
Tissue-like Protodermis Bionicle
Bionicle
Bionicle is a line of toys by the LEGO Group marketed primarily for 5- to 16-year-olds. The line was launched on December 30, 2000 in Europe and June/July 2001 in Canada and the United States. "Bionicle" is a portmanteau constructed from the words "biological" and "chronicle"...

It makes up all living tissue in the Matoran Universe, including the few species of Organic Rahi.
Titanite Star Blazers
Star Blazers
Star Blazers is an American animated television series adaptation of the Japanese anime series, . Star Blazers was first broadcast in the United States in 1979. Significantly, it was the first popular English-translated anime that had an over-arching plot and storyline that required the episodes to...

An element found on Saturn
Saturn
Saturn is the sixth planet from the Sun and the second largest planet in the Solar System, after Jupiter. Saturn is named after the Roman god Saturn, equated to the Greek Cronus , the Babylonian Ninurta and the Hindu Shani. Saturn's astronomical symbol represents the Roman god's sickle.Saturn,...

's moon Titan
Titan (moon)
Titan , or Saturn VI, is the largest moon of Saturn, the only natural satellite known to have a dense atmosphere, and the only object other than Earth for which clear evidence of stable bodies of surface liquid has been found....

. Golden and lustrous in appearance, it is used in spacecraft construction.
Titansteel World of Warcraft: Wrath of the Lich King
World of Warcraft: Wrath of the Lich King
World of Warcraft: Wrath of the Lich King, often referred to as WotLK, WLK or Wrath, is the second expansion set for the massively multiplayer online role-playing game World of Warcraft, following The Burning Crusade...

An alloy forged from Titanium and the eternal essences of Fire, Earth and Shadow. Used in high-end item crafting.
Transparent aluminum Star Trek IV: The Voyage Home
Star Trek IV: The Voyage Home
Star Trek IV: The Voyage Home is a 1986 American science fiction film released by Paramount Pictures. It is the fourth feature film based on the Star Trek science fiction television series and completes the story arc begun in Star Trek II: The Wrath of Khan and continued in Star Trek III: The...

A material that will not be invented for many years to come. Commander Scott gives the formula to make it to a 20th Century engineer in exchange for enough contemporary available material to transport a pair of humpback whales back to the future to save the planet.
Transparisteel Star Wars
Star Wars
Star Wars is an American epic space opera film series created by George Lucas. The first film in the series was originally released on May 25, 1977, under the title Star Wars, by 20th Century Fox, and became a worldwide pop culture phenomenon, followed by two sequels, released at three-year...

This is a metal with transparency similar to glass and tensile strength similar to that of steel, quite common in the Star Wars universe.
Triidium Deadlock A Metal processed from Endurium. It is processed in factories, and has 10x the power of iron and 2x the power of Endurium.
Trilithium Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

An experimental compound capable of stopping all fusion within a star. Dr. Soran used this in an attempt to return to the spatial anomaly known as the Nexus (Star Trek Generations). Also, the second best type of fuel cell in the Master of Orion
Master of Orion
Master of Orion is a turn-based, 4X science fiction computer strategy game released in 1993 by MicroProse on the MS-DOS and Mac OS operating systems. The purpose of the game is to lead one of ten races to dominate the galaxy through a combination of diplomacy and conquest while developing...

 series.
Trilithium Resin Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

A hazardous by-product generated by the matter-antimatter reactions in warp cores, it is considered to have no practical use other than as an explosive. Mentioned in the episode Starship Mine.
Trinium Stargate SG-1
Stargate SG-1
Stargate SG-1 is a Canadian-American adventure and military science fiction television series and part of Metro-Goldwyn-Mayer's Stargate franchise. The show, created by Brad Wright and Jonathan Glassner, is based on the 1994 feature film Stargate by Dean Devlin and Roland Emmerich...

Alien material used in the show that when refined is 100 times stronger and lighter than steel, which makes up the Stargate
Stargate (device)
A Stargate is a portal device within the Stargate fictional universe that allows practical, rapid travel between two distant locations. The devices first appear in the 1994 Roland Emmerich film Stargate, and thereafter in the television series Stargate SG-1 and its spin-offs...

's Iris and is also used in the construction of Earth's Battle cruisers and Asgard
Asgard (Stargate)
The Asgard are a fictional highly advanced race in the science fiction series Stargate SG-1 and Stargate Atlantis. They are first mentioned in the episode , and first seen in . In the series, the Asgard gave rise to Norse mythology on Earth, as well as accounts of the Roswell "Greys"...

 ships
Tritanium EVE Online
EVE Online
Eve Online is a video game by CCP Games. It is a player-driven, persistent-world MMORPG set in a science fiction space setting. Characters pilot customizable ships through a galaxy of over 7,500 star systems. Most star systems are connected to one or more other star systems by means of stargates...

,
Star Trek
Star Trek
Star Trek is an American science fiction entertainment franchise created by Gene Roddenberry. The core of Star Trek is its six television series: The Original Series, The Animated Series, The Next Generation, Deep Space Nine, Voyager, and Enterprise...

One of the main building blocks in space structures and spacecraft.
Within the universe of EVE (though not that of Star Trek), it is a very hard, yet bendable metal. Tritanium cannot be used in human habitats due to its instability at atmospheric temperatures. Very common throughout the universe.
Within the Star Trek universe, it is an extremely hard and strong crystalline metallic material, with a hardness beyond the current standard 1-10 hardness scale. Due to the complexity of required fabrication techniques, it is generally used in the construction of ships and stations only for primary bulkhead and spaceframe components, and in locations where a high strength to volume ratio is required (ex. the hulls and frames of shuttlecraft and other auxiliary spacecraft).
Tronium Super Robot Wars
Super Robot Wars
is a series of tactical role-playing video games produced by Banpresto, which is now a Japanese division of Namco Bandai. The main feature of the franchise is having a story that crosses over several popular mecha anime, manga and video games, allowing characters and mecha from different titles to...

 (Video Game)
An alien mineral several times more radioactive than Uranium
Uranium
Uranium is a silvery-white metallic chemical element in the actinide series of the periodic table, with atomic number 92. It is assigned the chemical symbol U. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons...

, it is used as a power source for the RTX-011 Hückebein Mk III, R-2 Powered, R-GUN Powered, and SRX, and as ammunition in the battleship Hagane's Tronium Buster Cannon. Only six chunks of this material are said to exist on Earth.
True Silver or Truesilver World of Warcraft
World of Warcraft
World of Warcraft is a massively multiplayer online role-playing game by Blizzard Entertainment. It is the fourth released game set in the fantasy Warcraft universe, which was first introduced by Warcraft: Orcs & Humans in 1994...

, Middle-earth
Middle-earth
Middle-earth is the fictional setting of the majority of author J. R. R. Tolkien's fantasy writings. The Hobbit and The Lord of the Rings take place entirely in Middle-earth, as does much of The Silmarillion and Unfinished Tales....

A valuable metal used to create magical armor, weapons, and other items. Found in some of the most dangerous areas of the Eastern Kingdoms and Kalimdor in Azeroth. For the metal found in Moria in Middle-earth, see Mithril
Mithril
Mithril is a fictional metal, originally used in J. R. R. Tolkien's Middle-earth fantasy writings. It is described as silvery and stronger than steel but much lighter in weight. The malleability, lack of tarnishing and use of the metal in jewellery suggest some similarity to the non-fictional metal...

.
Tungite The Mysterious Dr. Satan In the Republic film serial The Mysterious Dr. Satan, Tungite is the element necessary to power the remote control device for the villain Dr. Satan's race of killer robots.
Turbidium Total Recall
Total Recall
Total Recall is a 1990 American science fiction action film. The film stars Arnold Schwarzenegger, Rachel Ticotin, Sharon Stone, Michael Ironside, Ronny Cox & Mel Johnson, Jr.. It is based on the Philip K. Dick story “We Can Remember It for You Wholesale”...

In the movie Total Recall
Total Recall
Total Recall is a 1990 American science fiction action film. The film stars Arnold Schwarzenegger, Rachel Ticotin, Sharon Stone, Michael Ironside, Ronny Cox & Mel Johnson, Jr.. It is based on the Philip K. Dick story “We Can Remember It for You Wholesale”...

, it was a metal/alloy mined for use as a war material on Earth and ultimately used to extract oxygen
Oxygen
Oxygen is the element with atomic number 8 and represented by the symbol O. Its name derives from the Greek roots ὀξύς and -γενής , because at the time of naming, it was mistakenly thought that all acids required oxygen in their composition...

 from the ice
Ice
Ice is water frozen into the solid state. Usually ice is the phase known as ice Ih, which is the most abundant of the varying solid phases on the Earth's surface. It can appear transparent or opaque bluish-white color, depending on the presence of impurities or air inclusions...

 in Mars
Mars
Mars is the fourth planet from the Sun in the Solar System. The planet is named after the Roman god of war, Mars. It is often described as the "Red Planet", as the iron oxide prevalent on its surface gives it a reddish appearance...

's core.
Tylium Battlestar Galactica
Battlestar Galactica
Battlestar Galactica is an American science fiction franchise created by Glen A. Larson. The franchise began with the Battlestar Galactica TV series in 1978, and was followed by a brief sequel TV series in 1980, a line of book adaptations, original novels, comic books, a board game, and video games...

A fictional ore in both versions of the science fiction series Battlestar Galactica. It is very rare throughout the known universe, but essential for fueling both human and Cylon space ships, including for the purpose of faster-than-light jumps. Also referred to as "Tylinium."
Unnamed Metal Battlefield Earth
Battlefield Earth (novel)
Battlefield Earth: A Saga of the Year 3000 is a 1982 science fiction novel written by the Scientology founder L. Ron Hubbard. He composed a soundtrack to the book called Space Jazz....

A unnamed super dense metal in Battlefield Earth by L. Ron Hubbard
L. Ron Hubbard
Lafayette Ronald Hubbard , better known as L. Ron Hubbard , was an American pulp fiction author and religious leader who founded the Church of Scientology...

 that mixed with certain other elements causes an uncontrollable fission process that continues until there is nothing left of a planet except light gases. This metal is supposed to occur in meteorites before they burn up in an atmosphere.
Unobtainium
Unobtainium
In engineering, fiction, and thought experiments, unobtainium is any extremely rare, costly, or impossible material, or device needed to fulfill a given design for a given application. The properties of any particular unobtainium depend on the intended use...

The Core
The Core
The Core is a 2003 American disaster film loosely based on the novel Core by Paul Preuss. It concerns a team that has to drill to the center of the Earth and set off a series of nuclear explosions in order to restart the rotation of Earth's core...

, Avatar, Skyrates
Skyrates
Skyrates is a browser based massively multiplayer online game with a focus on sporadic play in a persistent world. It is currently in open beta. The development team was initially composed of students from the Entertainment Technology Center at Carnegie Mellon University...

, many thought experiment
Thought experiment
A thought experiment or Gedankenexperiment considers some hypothesis, theory, or principle for the purpose of thinking through its consequences...

s
Generally any extremely rare, costly, or physically impossible material needed to fulfill a given design for a given application - sometimes referred to as "unaffordium". In The Core it is described as a special tungsten
Tungsten
Tungsten , also known as wolfram , is a chemical element with the chemical symbol W and atomic number 74.A hard, rare metal under standard conditions when uncombined, tungsten is found naturally on Earth only in chemical compounds. It was identified as a new element in 1781, and first isolated as...

-titanium
Titanium
Titanium is a chemical element with the symbol Ti and atomic number 22. It has a low density and is a strong, lustrous, corrosion-resistant transition metal with a silver color....

 matrix. In Avatar (unobtanium—sic) the metal is highly valuable, and possesses unusual superconducting and magnetic properties (although the prop used is nothing other than galena
Galena
Galena is the natural mineral form of lead sulfide. It is the most important lead ore mineral.Galena is one of the most abundant and widely distributed sulfide minerals. It crystallizes in the cubic crystal system often showing octahedral forms...

). In Skyrates it is a green-colored element that has many properties, most prominently anti-gravity. Mark Donohue claimed that it was used in the chassis of Penske race cars.
Upsidaisium
Upsidaisium
Upsidaisium is a fictional element that appeared in the 1950s and 1960s Rocky and His Friends and The Bullwinkle Show animated series, in the story arc entitled Upsidaisium...

The Rocky and Bullwinkle Show
The Rocky and Bullwinkle Show
The Rocky & Bullwinkle Show is an American animated television series that originally aired from November 19, 1959 to June 28, 1964 on the ABC and NBC television networks...

Upsidaisium is a metal that is lighter than air and can be obtained by mining in upsidaisium-rich areas.
Uridium
Uridium
Uridium is a science fiction side-scrolling shoot 'em up for the Commodore 64 . It consists of fifteen levels, each named after a metal element, with the last level being called Uridium...

Uridium
Uridium
Uridium is a science fiction side-scrolling shoot 'em up for the Commodore 64 . It consists of fifteen levels, each named after a metal element, with the last level being called Uridium...

 computer game, 1986
Name for the Uridium
Uridium
Uridium is a science fiction side-scrolling shoot 'em up for the Commodore 64 . It consists of fifteen levels, each named after a metal element, with the last level being called Uridium...

 game's top level, a metallic element the developer thought existed. Also, the fourth best type of fuel cell in the Master of Orion
Master of Orion
Master of Orion is a turn-based, 4X science fiction computer strategy game released in 1993 by MicroProse on the MS-DOS and Mac OS operating systems. The purpose of the game is to lead one of ten races to dominate the galaxy through a combination of diplomacy and conquest while developing...

 series.
uminm steel book-novel "2" Uminm steel,a almost indestructible metal that grows in perfect hexagonal prisms when liquid it can corrode any material it comes in contact with
Uru Uru Thor series Magical metal used in the creation of Thor
Thor
In Norse mythology, Thor is a hammer-wielding god associated with thunder, lightning, storms, oak trees, strength, the protection of mankind, and also hallowing, healing, and fertility...

's Mjolnir hammer, which gives it its magical powers and indestructibility.
Vespene Gas StarCraft
StarCraft
StarCraft is a military science fiction real-time strategy video game developed by Blizzard Entertainment. The first game of the StarCraft series was released for Microsoft Windows on 31 March 1998. With more than 11 million copies sold worldwide as of February 2009, it is one of the best-selling...

A type of resource used to build high-tech units and buildings. Vespene gas is collected from Refineries (also called Assimilators or Extractors), which are constructed directly over Vespene Geysers.
Veridium Metal Men
Metal Men
The Metal Men are fictional characters that appear in comic books published by DC Comics. The characters first appeared in Showcase #37 and were created by writer Robert Kanigher and penciller Ross Andru...

Extraterrestrial in origin, veridium is a green metal capable of channeling heat energy. Doctor Will Magnus
Will Magnus
Doctor Will Magnus is a fictional character in the DC Comics universe. He first appeared in Showcase #37 alongside his creations, the Metal Men; he was created by Robert Kanigher and Ross Andru.-Fictional character biography:...

 permanently downloaded his mind into a veridium robot to become the new leader of the Metal Men.
Vibranium
Vibranium
Vibranium is a fictional metal that appears in the Marvel Universe. It is most commonly known as one of the materials used to construct Captain America's shield, but it is also noted for its connection to the Black Panther and his native homeland of Wakanda .-Publication history:Vibranium first...

Marvel Comics
Marvel Comics
Marvel Worldwide, Inc., commonly referred to as Marvel Comics and formerly Marvel Publishing, Inc. and Marvel Comics Group, is an American company that publishes comic books and related media...

An alien metal in two forms. Wakandan
Wakanda (comics)
Wakanda is a fictional nation in the Marvel Universe. It is the most prominent of several fictional African nations in the Marvel Universe. Wakanda is located in Northeastern Africa, although its exact location has varied throughout the nation's publication history: some sources place Wakanda in...

 vibranium absorbs vibrational energy. The more energy it stores the tougher it becomes. If the molecular bonds are broken, all the energy is released, causing an explosion. It is found only in the Africa
Africa
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

n nation of Wakanda, ruled by the Black Panther
Black Panther (comics)
The Black Panther is a fictional character in the Marvel Comics universe. Created by writer-editor Stan Lee and penciller-co-plotter Jack Kirby, he first appeared in Fantastic Four #52...

. Antarctic
Antarctic
The Antarctic is the region around the Earth's South Pole, opposite the Arctic region around the North Pole. The Antarctic comprises the continent of Antarctica and the ice shelves, waters and island territories in the Southern Ocean situated south of the Antarctic Convergence...

 vibranium emits a vibration that separates the bonds of other metals, liquifying them.
Vik-ro Carson of Venus
Venus series
The Venus Series by Edgar Rice Burroughs is a science fiction series consisting of four novels and one novelette. Most of the stories were first serialized in Argosy, an American pulp magazine. It is sometimes known as the Carson Napier of Venus Series, after their fictional main character, Carson...

 by Edgar Rice Burroughs
Edgar Rice Burroughs
Edgar Rice Burroughs was an American author, best known for his creation of the jungle hero Tarzan and the heroic Mars adventurer John Carter, although he produced works in many genres.-Biography:...

One of the two components of Lor (see below), which when combined with Yor-san results in total annihilation of the Lor, releasing tremendous energy.
Vionesium Doctor Who
Doctor Who
Doctor Who is a British science fiction television programme produced by the BBC. The programme depicts the adventures of a time-travelling humanoid alien known as the Doctor who explores the universe in a sentient time machine called the TARDIS that flies through time and space, whose exterior...

In the serial Terror of the Vervoids
Terror of the Vervoids
Terror of the Vervoids is the title commonly used for a serial in the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 1 November to 22 November 1986. It is part of the larger narrative known as The Trial of a Time Lord, emcompassing the...

, a rare metal from the planet Mogar. It burns brightly in air, similarly to Magnesium
Magnesium
Magnesium is a chemical element with the symbol Mg, atomic number 12, and common oxidation number +2. It is an alkaline earth metal and the eighth most abundant element in the Earth's crust and ninth in the known universe as a whole...

. The Sixth Doctor
Sixth Doctor
The Sixth Doctor is the sixth incarnation of the protagonist of the long-running BBC television science-fiction series Doctor Who. He was portrayed by Colin Baker...

 used this effect to destroy the plant based Vervoids by accelerating them through their lifecycle.
Viridium AdventureQuest
AdventureQuest
AdventureQuest is an online flash based single-player RPG developed by Artix Entertainment in 2002. As of June 14, 2010, aq.battleon.com, the game's hosting website, and www.battleon.com, the game's homepage, have an Alexa rating of 3,041...

 world
Effective against minions of "The Devourer," a destructive god in the game AdventureQuest
AdventureQuest
AdventureQuest is an online flash based single-player RPG developed by Artix Entertainment in 2002. As of June 14, 2010, aq.battleon.com, the game's hosting website, and www.battleon.com, the game's homepage, have an Alexa rating of 3,041...

. They will be hurt more by this material than by a normal weapon, and hence has been infused into the Weapons of Salvation.
Vizorium Dirty Pair
Dirty Pair
is a series of sci-fi comedy light novels written by Haruka Takachiho and illustrated by Yoshikazu Yasuhiko that was later adapted into anime and manga versions....

A rare metal used in the construction of warp engines in the Dirty Pair
Dirty Pair
is a series of sci-fi comedy light novels written by Haruka Takachiho and illustrated by Yoshikazu Yasuhiko that was later adapted into anime and manga versions....

 universe. First referenced in the Dirty Pair movie, Project EDEN
Project Eden
Project Eden is a video game for the PC and PlayStation 2 released in 2001. It is a hybrid between first- and third-person shooter with an emphasis on teamwork and puzzle solving over combat...

.
Voltairium Gene Roddenberry's Andromeda Used in nova
Nova
A nova is a cataclysmic nuclear explosion in a star caused by the accretion of hydrogen on to the surface of a white dwarf star, which ignites and starts nuclear fusion in a runaway manner...

 bombs. Possibly named for Voltaire
Voltaire
François-Marie Arouet , better known by the pen name Voltaire , was a French Enlightenment writer, historian and philosopher famous for his wit and for his advocacy of civil liberties, including freedom of religion, free trade and separation of church and state...

Warpstone
Warpstone
Warpstone is a fictional mutagen found in the Warhammer world, and also in the Warhammer 40,000 universe during the first and second editions. Humans and most other races in Games Workshop’s campaign game Mordheim refer to it as Wyrdstone....

 or Wyrdstone
Warhammer Fantasy
Warhammer Fantasy (setting)
Warhammer Fantasy is a fantasy setting, created by Games Workshop, which is used by many of the company's games. Some of the best-known games set in this world are: the table top wargame Warhammer Fantasy Battle, the Warhammer Fantasy Roleplay pen-and-paper role-playing game, and the MMORPG...

, also Warhammer 40,000
Warhammer 40,000
Warhammer 40,000 is a tabletop miniature wargame produced by Games Workshop, set in a dystopian science fantasy universe. Warhammer 40,000 was created by Rick Priestley in 1987 as the futuristic companion to Warhammer Fantasy Battle, sharing many game mechanics...

 1st and 2nd editions
A greenish-black crystal of solidified magic with transmutatory powers. It can be used as fuel, or to turn base metal into gold. Its chaotic nature makes it difficult to use, causing mutations and unstable weaponry.
Wasabinite Chop Socky Chooks
Chop Socky Chooks
Chop Socky Chooks is a British animated television series produced by Aardman Animations and DHX Media that debuted on 7 March 2008. It was created by animator Sergio Delfino, a prominent animator at Aardman. It currently airs only on Teletoon . For now, it airs on Cartoon Network, previously aired...

A precious purple crystal from the Moon. The villain Dr. Wasabi once tricked the patrons of his mall with a free trip to the Moon so he could enslave them to mine out the Wasabinite, but was eventually defeated by the heroic Chop Socky Chooks.
Wellstone The Wellstone by Wil McCarthy
Wil McCarthy
Wil McCarthy is a science fiction novelist, Chief Technology Officer for Galileo Shipyards , and the science columnist for Syfy...

Formally known as Quantum Wellstone, it is a quantum dot
Quantum dot
A quantum dot is a portion of matter whose excitons are confined in all three spatial dimensions. Consequently, such materials have electronic properties intermediate between those of bulk semiconductors and those of discrete molecules. They were discovered at the beginning of the 1980s by Alexei...

, programmable substrate that can emulate the properties of other elements, including the copyrighted atom Bunkerlite, impervium, and various other super-reflectors and super-absorbers.
Wishalloy Aerospace term e.g. An alternative to unobtainium. Historically Scramjet
Scramjet
A scramjet is a variant of a ramjet airbreathing jet engine in which combustion takes place in supersonic airflow...

s have been described as being made from unobtainium reinforced wishalloy
Wonderflonium Dr. Horrible's Sing-Along Blog
Dr. Horrible's Sing-Along Blog
Dr. Horrible's Sing-Along Blog is a 2008 musical tragicomedy miniseries in three acts, produced exclusively for Internet distribution. Filmed and set in Los Angeles, the show tells the story of Dr...

A material used by Dr. Horrible to create a ray that freezes its victim in time. Its container bears the written warning "do not bounce." On Dr. Horrible's whiteboard he writes H20+Wonderflonium=freeze. Other properties remain unknown.
X E. E. Smith
E. E. Smith
Edward Elmer Smith, Ph.D., also, E. E. Smith, E. E. "Doc" Smith, Doc Smith, "Skylark" Smith, and Ted was a food engineer and early science fiction author who wrote the Lensman series and the Skylark series, among others...

's Skylark of Space series
Mysterious platinum-group metal which, when plated upon another metal such as copper, allowed that other metal to be converted entirely from mass into energy in the presence of the radiation of DuQuesne's "whatsitron".
Xenium Half-Life (series)
Half-Life (series)
The Half-Life series of video games share a science fiction alternate history. Nearly all of the games are first-person shooters on the GoldSource or Source engines, and most are linear, narrative, single-player titles....

Xen crystals (Xenium) are crystalline structures of various sizes that exist in the Xen border world and appear to hold massive amounts of strong, unusual power. Their power was used by the scientists at Black Mesa in their research to create a reliable and safe means of teleportation.
Xenothium Teen Titans series Mysterious substance, presumably liquid or gas, used by Professor Chang to power Red X's costume and weapons.
Xentronium Master of Orion 2 A metallic substance used as armor on alien ships.
Yautjavian metal Predator franchise
Predator (franchise)
The Predator film series is a science fiction horror film franchise. Produced by 20th Century Fox, the series started in 1987 with the film Predator, which led to two sequels and novel, comic book and video game spin-offs....

The Predator race
Predator (alien)
The Predator is a fictional extraterrestrial species featured in the Predator science-fiction franchise, characterised by its trophy hunting of other dangerous species for sport, including humans and its fictional counterparts, Aliens....

, called "Yautja", of the Predator
Predator (film)
Predator is a 1987 American science fiction action film directed by John McTiernan, starring Arnold Schwarzenegger, Carl Weathers, Jesse Ventura, and Kevin Peter Hall. It was distributed by 20th Century Fox....

 films, as well as the humanoid aliens from AVP, use a super-light metal that can be forged to a monomolecular edge
Monomolecular wire
Monomolecular wire is a fictional wire, often used as a weapon, consisting of single strand of strongly-bonded molecules, like carbon nanotubes. It has applications in cutting objects and severing adjacent molecules...

. Such an edge would be impossible with any nonfictional element, none currently known that provide such a strong molecular bonding. Yautjavian weapons thus work on the principle that the thinner the cutting edge the more keen the weapon, this metal allowing for impossibly sharp blades. Often this metal is layered for greater strength, as when made into Yautjavian plate armor.
Yor-san Carson of Venus
Venus series
The Venus Series by Edgar Rice Burroughs is a science fiction series consisting of four novels and one novelette. Most of the stories were first serialized in Argosy, an American pulp magazine. It is sometimes known as the Carson Napier of Venus Series, after their fictional main character, Carson...

 by Edgar Rice Burroughs
Edgar Rice Burroughs
Edgar Rice Burroughs was an American author, best known for his creation of the jungle hero Tarzan and the heroic Mars adventurer John Carter, although he produced works in many genres.-Biography:...

One of the two components of Lor (see above) which when combined with Vik-ro results in total annihilation of the Lor, releasing tremendous energy.
Yuanon Crest of the Stars
Crest of the Stars
is a three-volume space opera science fiction novel written by Hiroyuki Morioka with cover illustrations by Toshihiro Ono. Beginning in 1999, the novels were adapted into anime series, the first of which ran for 13 episodes on WOWOW...

 novels
A massive subatomic particle that emits a constant stream of energy (on the order of 500 MW). It is the "closed" form of a planespace Sord (the open form being the 1000 km wide, whitehole-like gateway into planespace).
Zamomin Zamonia Series novels, by Walter Moers
Walter Moers
Walter Moers is one of the best-known and commercially most successful German comic creators and authors.-Life and work:...

A mad thinking element that tries to accumulate power by manipulating living beings.
Zanium The Twin Dilemma
The Twin Dilemma
The Twin Dilemma is a serial in the British science fiction television series Doctor Who, which was first broadcast in four twice-weekly parts from 22 March to 30 March 1984, the first to star Colin Baker in the title role.-Synopsis:...

, a Doctor Who
Doctor Who
Doctor Who is a British science fiction television programme produced by the BBC. The programme depicts the adventures of a time-travelling humanoid alien known as the Doctor who explores the universe in a sentient time machine called the TARDIS that flies through time and space, whose exterior...

 story; "Riddle of the Gold", a Jonny Quest
Jonny Quest (TV series)
Jonny Quest – often casually referred to as The Adventures of Jonny Quest – is an American science fiction/adventure animated television series about a boy who accompanies his father on extraordinary adventures...

 episode
In Doctor Who, Zanium residue - a characteristic of teleportation — is a sure sign of intergalactic kidnap. In Jonny Quest, Zanium is a rare metal that can be transmuted to display all of the qualities of gold, but which disintegrates when an acidic test solution is applied to it whereas gold does not.
Zexonite EarthBound
EarthBound
EarthBound, also known as EarthBound: The War Against Giygas! and released as in Japan, is a role-playing video game co-developed by Ape and HAL Laboratory and published by Nintendo for the Super Nintendo Entertainment System video game console...

An elemental ore not found on Earth, it is taken from a meteorite and used to complete the Phase-Distorter, a machine capable of sending metals and souls, but not complex organic matter, across time
Time travel
Time travel is the concept of moving between different points in time in a manner analogous to moving between different points in space. Time travel could hypothetically involve moving backward in time to a moment earlier than the starting point, or forward to the future of that point without the...

.
Zfylud Crystal Super Robot Wars
Super Robot Wars
is a series of tactical role-playing video games produced by Banpresto, which is now a Japanese division of Namco Bandai. The main feature of the franchise is having a story that crosses over several popular mecha anime, manga and video games, allowing characters and mecha from different titles to...

Named after the Balmarian god of creation and divine justice, Zfylud crystals self-replicate and radiate energy as a power source and also gain sentience when in large numbers. In the Original Generation series, a large chunk of Zfylud crystals assumed sentience and called itself the Septuagint.
Zol Golden Sun
Golden Sun
Golden Sun, released in Japan as , is the first installment in a series of fantasy role-playing video games developed by Camelot Software Planning and published by Nintendo. It was released in November 2001 for Nintendo's Game Boy Advance and was followed by a sequel, Golden Sun: The Lost Age, in...

Zol is a floating, pale green, often cubic alloy in Golden Sun: Dark Dawn that responds to Jupiter (wind) Psynergy, usually to lift upward or float sideways as a platform. Certain wind-based weapons and armor can be forged from pieces of Quality Zol that the player collects.
Zoridium Operation: Red Jericho The most powerful explosive available before the splitting of the atom. Known to the Sujing Quantou orders as "Daughter of the Sun". Used to power the torpedoes of pirate lord Sheng-Fat and the Coterie of St. Petersburg's gravity experiments
Zortium Master of Orion An extremely hard super metal used to armor starships in the Master of Orion PC games series. According to Master of Orion II: Battle at Antares, it is 4 times as strong as titanium
Titanium
Titanium is a chemical element with the symbol Ti and atomic number 22. It has a low density and is a strong, lustrous, corrosion-resistant transition metal with a silver color....

 (based on game statistics) which quadruples the ship's durability in relation to the standard titanium combat armors.
Zuunium Legion of Superheroes A rare element in metallic form, found on the planet Zuun. One of the strange effects of its radiation is that it gives anyone exposed to it the powers of lycanthropy
Lycanthropy
Lycanthropy is the professed ability or power of a human being to undergo transformation into a werewolf, or to gain wolf-like characteristics. The term comes from Greek Lykànthropos : λύκος, lykos + άνθρωπος, ànthrōpos...

. One such "victim" of exposure became the Legionnaire Timber Wolf
Timber Wolf (comics)
Timber Wolf is a fictional character, a superhero in the 30th and 31st centuries of the and member of the Legion of Super-Heroes. He comes from the planet Zoon . His powers are enhanced strength, speed and agility...

.
Zydrine EVE Online
EVE Online
Eve Online is a video game by CCP Games. It is a player-driven, persistent-world MMORPG set in a science fiction space setting. Characters pilot customizable ships through a galaxy of over 7,500 star systems. Most star systems are connected to one or more other star systems by means of stargates...

Only found in huge geodes; rocks on the outside with crystal-like quartz on the inside. The rarest and most precious of these geodes are those that contain the dark green zydrine within. Very rare and very expensive.

Fictional isotopes of real elements

Name Isotope of Source Uses Reality
886Ar Argon
Argon
Argon is a chemical element represented by the symbol Ar. Argon has atomic number 18 and is the third element in group 18 of the periodic table . Argon is the third most common gas in the Earth's atmosphere, at 0.93%, making it more common than carbon dioxide...

Judge Dredd
Judge Dredd
Judge Joseph Dredd is a comics character whose strip in the British science fiction anthology 2000 AD is the magazine's longest running . Dredd is an American law enforcement officer in a violent city of the future where uniformed Judges combine the powers of police, judge, jury and executioner...

An unstable element that is used to propel rounds fired from a Lawgiver. The isotope does not exist; the heaviest known isotope is 53Ar
Isotopes of argon
Argon has 24 known isotopes, from 30Ar to 53Ar and 1 isomer , three of which are stable, 36Ar, 38Ar, and 40Ar. On Earth, 40Ar makes up 99.6% of natural argon. The longest-lived radioactive isotopes are 39Ar with a half-life of 269 years, 42Ar with a half-life of 32.9 years, and 37Ar with a...

.
138Cs Caesium
Caesium
Caesium or cesium is the chemical element with the symbol Cs and atomic number 55. It is a soft, silvery-gold alkali metal with a melting point of 28 °C , which makes it one of only five elemental metals that are liquid at room temperature...

Mission: Impossible
Mission: Impossible
Mission: Impossible is an American television series which was created and initially produced by Bruce Geller. It chronicled the missions of a team of secret American government agents known as the Impossible Missions Force . The leader of the team was Jim Phelps, played by Peter Graves, except in...

 (Snowball In Hell)
In this episode (the 21st in the series) the team has to prevent a sample of this isotope, the key to a low-cost nuclear arsenal, from getting into anti-American hands. Its autoignition temperature
Autoignition temperature
The autoignition temperature or kindling point of a substance is the lowest temperature at which it will spontaneously ignite in a normal atmosphere without an external source of ignition, such as a flame or spark. This temperature is required to supply the activation energy needed for combustion...

 is 21°C (70°F) and thus has to be kept refrigerated in the tropical climate where it resides.
The isotope does exist
Isotopes of caesium
Caesium has 40 known isotopes. The atomic masses of these isotopes range from 112 to 151. Only one isotope, 133Cs, is stable. The longest-lived radioisotopes are 135Cs with a half-life of 2.3 million years, 137Cs with a half-life of 30.1671 years and 134Cs with a half-life of 2.0652 years...

, but decays with a half-life of 33 min and thus would be infeasible for a nuclear weapon.
82Cm Curium
Curium
Curium is a synthetic chemical element with the symbol Cm and atomic number 96. This radioactive transuranic element of the actinide series was named after Marie Skłodowska-Curie and her husband Pierre Curie. Curium was first intentionally produced and identified in summer 1944 by the group of...

Brødrene Dal og Spektralsteinene The McGuffin in this TV series, where Professor Slatters claims that with it he can find a cure/vaccine for the common cold
Common cold
The common cold is a viral infectious disease of the upper respiratory system, caused primarily by rhinoviruses and coronaviruses. Common symptoms include a cough, sore throat, runny nose, and fever...

. He and the Dal brothers go on an expedition to search for a meteorite with a sufficient amount of it. They do find one, but is there alloyed with umulium (impossibilium), making the 82Cm unobtainable.
Curium has an atomic number
Atomic number
In chemistry and physics, the atomic number is the number of protons found in the nucleus of an atom and therefore identical to the charge number of the nucleus. It is conventionally represented by the symbol Z. The atomic number uniquely identifies a chemical element...

 of 96, so the existence of this isotope would require a nucleon of negative mass, which has not currently been found.
Quadium (4H) Hydrogen
Hydrogen
Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an average atomic weight of , hydrogen is the lightest and most abundant chemical element, constituting roughly 75% of the Universe's chemical elemental mass. Stars in the main sequence are mainly...

The Mouse that Roared
The Mouse That Roared
The Mouse That Roared is a 1955 Cold War satirical novel by Irish-American writer Leonard Wibberley, which launched a series of satirical books about an imaginary country in Europe called the Duchy of Grand Fenwick...

Hydrogen normally has no neutron
Neutron
The neutron is a subatomic hadron particle which has the symbol or , no net electric charge and a mass slightly larger than that of a proton. With the exception of hydrogen, nuclei of atoms consist of protons and neutrons, which are therefore collectively referred to as nucleons. The number of...

s. Deuterium
Deuterium
Deuterium, also called heavy hydrogen, is one of two stable isotopes of hydrogen. It has a natural abundance in Earth's oceans of about one atom in of hydrogen . Deuterium accounts for approximately 0.0156% of all naturally occurring hydrogen in Earth's oceans, while the most common isotope ...

 and tritium
Tritium
Tritium is a radioactive isotope of hydrogen. The nucleus of tritium contains one proton and two neutrons, whereas the nucleus of protium contains one proton and no neutrons...

 have one and two neutrons respectively and are used in hydrogen bombs. Quadium has three neutrons, and is in the story capable of blasting an entire continent off the face of the Earth.
This isotope exists but only for a very short time, making any use in a bomb impossible.
80Ir Iridium
Iridium
Iridium is the chemical element with atomic number 77, and is represented by the symbol Ir. A very hard, brittle, silvery-white transition metal of the platinum family, iridium is the second-densest element and is the most corrosion-resistant metal, even at temperatures as high as 2000 °C...

Riptide
Riptide (novel)
Riptide is a novel written by Lincoln Child and Douglas Preston published in 1998 by Warner Books.The novel revolves around a plot to retrieve the buried treasure of nefarious pirate Red Ned Ockham. The treasure, which is estimated to be worth close to two billion dollars, reputedly includes "St...

According to the book, one second of direct exposure is equivalent to a lethal dose, with a reading of 3217.89 Rads
Rad (unit)
The rad is a unit of absorbed radiation dose. The rad was first proposed in 1918 as "that quantity of X rays which when absorbed will cause the destruction of the malignant mammalian cells in question..." It was defined in CGS units in 1953 as the dose causing 100 ergs of energy to be absorbed by...

/hr from 15 metres away. The blade of St. Michael's sword was forged from it.
80Ir does not exist; the lightest known isotope is 164Ir
Isotopes of iridium
There are two natural isotopes of iridium , and 34 radioisotopes, the most stable radioisotope being 192Ir with a half-life of 73.83 days, and many nuclear isomers, the most stable of which is 192m2Ir with a half-life of 241 years, all other isomers have half-lives under a year, most under a...

.
186Pu Plutonium
Plutonium
Plutonium is a transuranic radioactive chemical element with the chemical symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, forming a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation...

The Gods Themselves
The Gods Themselves
The Gods Themselves is a 1972 science fiction novel written by Isaac Asimov. It won the Nebula Award for Best Novel in 1972, and the Hugo Award for Best Novel in 1973....

An isotope of plutonium which is too unstable to exist in our universe
Universe
The Universe is commonly defined as the totality of everything that exists, including all matter and energy, the planets, stars, galaxies, and the contents of intergalactic space. Definitions and usage vary and similar terms include the cosmos, the world and nature...

 but which exists naturally in parallel universes whose strong nuclear force
Strong interaction
In particle physics, the strong interaction is one of the four fundamental interactions of nature, the others being electromagnetism, the weak interaction and gravitation. As with the other fundamental interactions, it is a non-contact force...

s are more intense. This is utilised as a source of energy where it is turned into 186W, releasing electrons in the process.
The description of this isotope is entirely correct; the lightest known isotope of plutonium is 228Pu
Isotopes of plutonium
Plutonium is an artificial element, except for trace quantities of primordial 244Pu, and thus a standard atomic mass cannot be given. Like all artificial elements, it has no stable isotopes. It was synthesized long before being found in nature, the first isotope synthesized being 238Pu in 1940....

.
Quantium any element, but most commonly potassium
Potassium
Potassium is the chemical element with the symbol K and atomic number 19. Elemental potassium is a soft silvery-white alkali metal that oxidizes rapidly in air and is very reactive with water, generating sufficient heat to ignite the hydrogen emitted in the reaction.Potassium and sodium are...

Babylon 5
Babylon 5
Babylon 5 is an American science fiction television series created, produced and largely written by J. Michael Straczynski. The show centers on a space station named Babylon 5: a focal point for politics, diplomacy, and conflict during the years 2257–2262...

This rare and expensive substance used in jumpgates is formed when ordinary matter is subjected to the stresses of a supernova
Supernova
A supernova is a stellar explosion that is more energetic than a nova. It is pronounced with the plural supernovae or supernovas. Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months...

, pushing some of its electron pair-bonds into hyperspace. The most commonly found form is derived from 40K
Potassium-40
Potassium-40 is a radioactive isotope of potassium which has a very long half-life of 1.248 years, or about 39.38 seconds.Potassium-40 is a rare example of an isotope which undergoes all three types of beta decay. About 89.28% of the time, it decays to calcium-40 with emission of a beta particle...

, giving quantium-40. The name was coined by David Strauss in response to a request from the show's creator.
40K is a naturally occurring isotope of potassium which is used to date rocks. However, the method of obtaining quantium as described has not been demonstrated in real life.

Isotopes of fictional elements

Name Isotope of Source Uses
Illudium PU-36 Illudium Phosdex Looney Tunes
Looney Tunes
Looney Tunes is a Warner Bros. animated cartoon series. It preceded the Merrie Melodies series and was Warner Bros.'s first animated theatrical series. Since its first official release, 1930's Sinkin' in the Bathtub, the series has become a worldwide media franchise, spawning several television...

Used by Marvin the Martian
Marvin the Martian
Marvin the Martian is a fictional character appearing in the Looney Tunes cartoons. Marvin's likeness appears in miniature on the Spirit rover on Mars.-Conception and creation:...

 as a planet-destroying explosive. (Often mis-heard
Mondegreen
A mondegreen is the mishearing or misinterpretation of a phrase as a result of near homophony, in a way that gives it a new meaning. It most commonly is applied to a line in a poem or a lyric in a song...

 as Illudium Q-36).
Isogen-5 Isogen EVE online
EVE Online
Eve Online is a video game by CCP Games. It is a player-driven, persistent-world MMORPG set in a science fiction space setting. Characters pilot customizable ships through a galaxy of over 7,500 star systems. Most star systems are connected to one or more other star systems by means of stargates...

's Empyrean Age novel
This isotope is found only in systems with Type O blue stars, where it is gathered and stored in huge caches by rogue drones. It is extremely volatile and when destabalized will send off a mass of neutrino
Neutrino
A neutrino is an electrically neutral, weakly interacting elementary subatomic particle with a half-integer spin, chirality and a disputed but small non-zero mass. It is able to pass through ordinary matter almost unaffected...

s and produce an unknown exotic element which has space-time bending properties since it has a negative mass.
Monopasium-239 Monopasium Blake's 7
Blake's 7
Blake's 7 is a British science fiction television series produced by the BBC for its BBC1 channel. The series was created by Terry Nation, a prolific television writer and creator of the Daleks for the television series Doctor Who. Four series of Blake's 7 were produced and broadcast between 1978...

A radioactive isotope known to exist in quantity on only two planets within the Federation. When processed it can be used as fuel for extremely long-ranged (possibly intergalactic) spacecraft.
Naquadriah Naquadah Stargate SG-1
Stargate SG-1
Stargate SG-1 is a Canadian-American adventure and military science fiction television series and part of Metro-Goldwyn-Mayer's Stargate franchise. The show, created by Brad Wright and Jonathan Glassner, is based on the 1994 feature film Stargate by Dean Devlin and Roland Emmerich...

 and Stargate Atlantis
Stargate Atlantis
Stargate Atlantis is a Canadian-American adventure and military science fiction television series and part of MGM's Stargate franchise. The show was created by Brad Wright and Robert C. Cooper as a spin-off series of Stargate SG-1, which was created by Wright and Jonathan Glassner and was itself...

A highly unstable variant of Naquadah with greater explosive properties. It can also be used for the powering of highly efficient hyperspace engines. Naquadriah is formed from Naquadah in an artificial chain reaction. There are only a few known planets containing Naquadriah; one is Langara (the home of Jonas Quinn
Jonas Quinn
Jonas Quinn is a fictional character in the Canadian-American television series Stargate SG-1, a science fiction show about a military team exploring the galaxy via a network of alien transportation devices...

) where large deposits were accidentally created from natural Naquadah deposits when a bomb using a relatively small amount of the material was tested by a team of human scientists, radiation from the explosion started the chain reaction. It was originally created in relatively small amounts millennia ago by an unknown Goa'uld
Goa'uld
The Goa'uld are a fictional symbiotic race of ancient astronauts from the American-Canadian military science fiction television franchise Stargate. The Goa'uld are parasites from the planet P3X-888, integrated within a host, most of the time human. The resulting creatures are a powerful race bent...

 scientist. Unprotected exposure can lead to brain damage, delusions and/or schizophrenia. It has been said to have a half-life of several thousand years. The other known sources, presumably naturally occurring ones, are known as 'Icarus Class' Planets. Two have been found by Earth so far. The first was used (and ultimately destroyed) in the construction of Icarus Base and the dialing of the Ninth Chevron to the Ancient starship Destiny using the Stargate, several billion light years away. The second was used by the Lucian Alliance for that same purpose but, due to instability of the power transfer and the lack of sophistication in the algorithms used for the power transfer, was also destroyed. Earth is currently in negotiation with Langara for use of their naquadriah deposits as a lifeline to funnel supplies and personnel to Destiny
Thyrium-261 Thyrium Matthew Reilly
Matthew Reilly
Matthew John Reilly is an Australian action thriller writer. His novels are noted for their fast pace, twisting plots and intense action.- Biography :...

's novel Temple
This isotope is found only in a binary star system, in the Pleiades
Pleiades (star cluster)
In astronomy, the Pleiades, or Seven Sisters , is an open star cluster containing middle-aged hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky...

. It is capable of generating enormous power in the right reactor configuration. It leaves no radioactive waste byproducts after use. It is also capable of forming a subcritical mass, detonating with enough power to vaporise a third of the Earth's mass, propelling it out of orbit, away from the sun.

Fictional (sub)atomic particles

Name Source Uses
Bigon Discover Magazine A particle supposedly discovered by French scientists, which although it exists for just millionths of a second, it is the size of a bowling ball. "The Bigon" was an April Fool's joke article from issue no. 4/1996.
Bogon Jargon File
Jargon File
The Jargon File is a glossary of computer programmer slang. The original Jargon File was a collection of terms from technical cultures such as the MIT AI Lab, the Stanford AI Lab and others of the old ARPANET AI/LISP/PDP-10 communities, including Bolt, Beranek and Newman, Carnegie Mellon...

In Quantum bogodynamics, a particle generated by politicians, used-car salesmen, TV evangelists and suits in general. Bogon absorption causes human beings to behave mindlessly and machines to fail (and may also cause both to emit secondary bogons). The antiparticle of the cluon. In Ratchet and Clank: Going Commando, the galaxy that the titular characters are transported to is the Bogon Galaxy, most likely as a nod to the particle.
Chronon The Fireclown
The Fireclown
The Fireclown is the fourth science fiction novel written by Michael Moorcock, published by Compact in 1965.-Plot:...

 by Michael Moorcock
Michael Moorcock
Michael John Moorcock is an English writer, primarily of science fiction and fantasy, who has also published a number of literary novels....

The "atoms of time", used by the Fireclown to create the "Time Fire".
Cluon Jargon File
Jargon File
The Jargon File is a glossary of computer programmer slang. The original Jargon File was a collection of terms from technical cultures such as the MIT AI Lab, the Stanford AI Lab and others of the old ARPANET AI/LISP/PDP-10 communities, including Bolt, Beranek and Newman, Carnegie Mellon...

In Quantum bogodynamics, a particle generated by those who Get It. Cluon absorption causes human beings to act reasonably. The antiparticle of the bogon. Sometimes called a validon.
Craptron Instant Physics
Instant Physics
Instant Physics is a 1995 book by Tony Rothman, published by the Ballentine/Fawcett group. The book, meant for readers with a minimal amount of mathematical training, consists of 10 chapters that cover most of the essential topics in physics, from Newtonian mechanics to nuclear physics and general...

A particle found in Washington D.C. A joke particle from the book.
Dust
Dust (His Dark Materials)
Dust in Philip Pullman's trilogy of novels His Dark Materials is a mysterious cosmic particle that is integral to the plot. In Northern Lights, Lord Asriel reveals the origins of the term "Dust" to be from a passage from the slightly alternate version of the Bible in Lyra's World: "In the sweat of...

His Dark Materials
His Dark Materials
His Dark Materials is a trilogy of fantasy novels by Philip Pullman comprising Northern Lights , The Subtle Knife , and The Amber Spyglass...

An elementary particle that is the basic unit of consciousness. Not a constant; is generated by and confers sentience on animals in a positive feedback loop; in the context of humans, the human brain is a focusing mechanism for Dust. The more conscious the entity, the more Dust is around them. Permeates all universes and passes among dimensions.
Fat electron Jargon File
Jargon File
The Jargon File is a glossary of computer programmer slang. The original Jargon File was a collection of terms from technical cultures such as the MIT AI Lab, the Stanford AI Lab and others of the old ARPANET AI/LISP/PDP-10 communities, including Bolt, Beranek and Newman, Carnegie Mellon...

In Quantum bogodynamics, an electron that gains weight via bogon absorption. Clogging the narrow micro-electronic pathways of microchips, it is believed to be the cause of microprocessors failing.
GN Particle Gundam 00 Particles created by GN Drives which are generally of a greenish colour (except if produced by GN Tau Drives) and have a wide variety of uses, e.g. radio and radar jamming or even influence on human biology in various ways.
Gravioli Futurama
Futurama
Futurama is an American animated science fiction sitcom created by Matt Groening and developed by Groening and David X. Cohen for the Fox Broadcasting Company. The series follows the adventures of a late 20th-century New York City pizza delivery boy, Philip J...

A nonsense particle briefly mentioned in the episode Roswell That Ends Well
Roswell That Ends Well
"Roswell That Ends Well" is the nineteenth episode of the third production season of the TV show Futurama. This episode, which won an Emmy Award, originally aired on December 9, 2001 as the season premiere of broadcast season four. It was written by J. Stewart Burns and directed by Rich Moore...

, one of the forms of radiation emitted by a supernova. Presumably interacts strongly with microwave photons.
Kingon/Queon Discworld
Discworld
Discworld is a comic fantasy book series by English author Sir Terry Pratchett, set on the Discworld, a flat world balanced on the backs of four elephants which, in turn, stand on the back of a giant turtle, Great A'Tuin. The books frequently parody, or at least take inspiration from, J. R. R....

A particle hypothesized to exist by philosopher Ly Tin Wheedle. Particles that travel faster than light and transmit 'monarchy', since when a monarch dies, the successor is instantly the new monarch, with no gap or overlap between the two. The exception is when these particles are intercepted by their anti-particle, the republicon. The theory that this effect could be used for really fast information transmission (by carefully torturing a small king) was never fully developed, because at that point, the bar closed.
Kojima particles Armored Core
Armored Core
Armored Core is a mecha-based video game series developed by From Software for the PlayStation Portable, PlayStation, PlayStation 2, PlayStation 3, Xbox 360 and Mobile Phone platforms. Armored Core games are Mecha Simulation/third-person shooters, in which the player pilots a large mecha called an...

 series (debut in Armored Core 4)
The Kojima particles named after his fictional creator are heavily radioactive particles used primary for shielding and defense but also for propulsion, weapons and energy source. The most common use is as a barrier that protects the gigantic mechs
Mecha
A mech , is a science fiction term for a large walking bipedal tank or robot, including ones on treads and animal shapes.-Characteristics:...

 in Armored Core that also allows them to move at high speeds, giving them a huge advantage over other combat vehicles and weapons. These particles absorb the kinetic energy of projectiles and other weapons reducing the damage given to almost none. Depending on the weapon, the more power it fires, the more the kojima barrier stops, but of course draining the shield integrity. Another aspect of this particles is that they are extremely polluting and lethal due intense radiation and can cause heavy envirorment dammage. They are visible at high densities or upon impact with something and look greenish.
Nucleoproton Big Guy and Rusty the Boy Robot
Big Guy and Rusty the Boy Robot
The Big Guy and Rusty the Boy Robot is a 1995 comic book written by Frank Miller, drawn by Geof Darrow and published by Dark Horse Comics...

The exact nature of this particle is never fully explained, but its applications are well-documented. Nucleoprotons appear as particles that are bright green in appearance and glow. Their application seems to widely vary. They apparently can be used as an energy source; a weapon, if nucleoprotons are directed to create a particle cannon; and a source of propulsion.
Oz GURPS Technomancer A particle that carries magical energy, found in places where boundaries between alternate possible realities are thin. Mages are able to control the flow of particles through spells, effectively reshaping the universe as they see fit.
Planetary Particle Yu-Gi-Oh! 5Ds A particle used to power the Ener-D reactor in New Domino City.
Reson Discworld
Discworld
Discworld is a comic fantasy book series by English author Sir Terry Pratchett, set on the Discworld, a flat world balanced on the backs of four elephants which, in turn, stand on the back of a giant turtle, Great A'Tuin. The books frequently parody, or at least take inspiration from, J. R. R....

Roughly translated as thingy, these particles combine to make up thaums. Similarly to real-world quark
Quark
A quark is an elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei. Due to a phenomenon known as color confinement, quarks are never directly...

s, they come in five different flavours: Up, down, sideways, sex appeal and peppermint. They are considered to be the fundamental particles of reality (see Moving Pictures (novel)
Moving Pictures (novel)
Moving Pictures is the name of the tenth Discworld novel by Terry Pratchett, published in 1990. The book takes place in Discworld's most famous city, Ankh-Morpork and a town called "Holy Wood"...

).
Snarks, Boojums Star Trek II: The Wrath of Khan
Star Trek II: The Wrath of Khan
Star Trek II: The Wrath of Khan is a 1982 American science fiction film released by Paramount Pictures. The film is the second feature based on the Star Trek science fiction franchise. The plot features James T...

 novelisation
The sub-elementary particles that quark
Quark
A quark is an elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei. Due to a phenomenon known as color confinement, quarks are never directly...

s are made from, discovered by Drs. March and Madison, two Lewis Carroll
Lewis Carroll
Charles Lutwidge Dodgson , better known by the pseudonym Lewis Carroll , was an English author, mathematician, logician, Anglican deacon and photographer. His most famous writings are Alice's Adventures in Wonderland and its sequel Through the Looking-Glass, as well as the poems "The Hunting of the...

 fans involved with Project Genesis. Named after the creatures in The Hunting of the Snark
The Hunting of the Snark
The Hunting of the Snark is usually thought of as a nonsense poem written by Lewis Carroll in 1874, when he was 42 years old...

.
Swivel
Swivel
A swivel is a connection that allows the connected object, such as a gun or chair, to rotate horizontally and/or vertically. A common design for a swivel is a cylindrical rod that can turn freely within a support structure. The rod is usually prevented from slipping out by a nut, washer or...

Caballo de Troya
Caballo de Troya
Caballo de Troya is a novel written in 1984 by Spanish journalist, writer and ufologist Juan José Benítez. It has reached considerable success in most Spanish-speaking countries as well as in Brazil...

This book gives a lengthy, detailed "technical" description of a time travel process by an "inversion of quantum
Quantum
In physics, a quantum is the minimum amount of any physical entity involved in an interaction. Behind this, one finds the fundamental notion that a physical property may be "quantized," referred to as "the hypothesis of quantization". This means that the magnitude can take on only certain discrete...

 swivel
Swivel
A swivel is a connection that allows the connected object, such as a gun or chair, to rotate horizontally and/or vertically. A common design for a swivel is a cylindrical rod that can turn freely within a support structure. The rod is usually prevented from slipping out by a nut, washer or...

s" which permits the supposed author "The Major" to witness the last weeks of Jesus's life through a time-travelling device sent back in time by the US military in an Israel base in 1973.
Tachyons
Tachyons in fiction
The hypothetical particles tachyons have inspired many occurrences of tachyons in fiction.In general, tachyons are a standby mechanism upon which many science fiction authors rely to establish faster-than-light communication, with or without reference to causality issues...

Numerous examples in sci-fi A tachyon
Tachyon
A tachyon is a hypothetical subatomic particle that always moves faster than light. In the language of special relativity, a tachyon would be a particle with space-like four-momentum and imaginary proper time. A tachyon would be constrained to the space-like portion of the energy-momentum graph...

 is any hypothetical particle that travels faster than light. In many fictional settings it is taken that this involves travelling through time and they are invoked as an integral part of, or even shorthand for, time travel devices.
Thaum Discworld
Discworld
Discworld is a comic fantasy book series by English author Sir Terry Pratchett, set on the Discworld, a flat world balanced on the backs of four elephants which, in turn, stand on the back of a giant turtle, Great A'Tuin. The books frequently parody, or at least take inspiration from, J. R. R....

A Thaum is the basic unit of magical strength. It has been universally established as the amount of magic needed to create one small white pigeon or three normal sized billiard balls. The thaum, hitherto believed to be the smallest possible particle of magic, was successfully demonstrated to be made up of /resons/ (Lit.: 'Thing-ies') or reality fragments. Currently research indicates that each reson is itself made up of a combination of at least five 'flavours', known as 'up', 'down', 'sideways', 'sex appeal' and 'peppermint'. The device that is used to measure the strength of magical fields is a thaumometer.
Thaumaturgon Bas-Lag
Bas-Lag
Bas-Lag is the fictional world in which several of China Miéville's novels are set. Bas-Lag is a world where both magic and steampunk technology exist, and is home to many intelligent races...

A particle that mediates thaumaturgy or magic in the Bas-Lag novels of China Miéville
China Miéville
China Tom Miéville is an award-winning English fantasy fiction writer. He is fond of describing his work as "weird fiction" , and belongs to a loose group of writers sometimes called New Weird. He is also active in left-wing politics as a member of the Socialist Workers Party...

.

Fictional allotropes and polymorphisms

Name Source Uses
Ekti Kevin J. Anderson
Kevin J. Anderson
Kevin J. Anderson is an American science fiction author with over forty bestsellers. He has written spin-off novels for Star Wars, StarCraft, Titan A.E., and The X-Files, and with Brian Herbert is the co-author of the Dune prequels...

 in his novel Saga of Seven Suns
Saga of Seven Suns
The Saga of Seven Suns is a series of seven space opera novels written by Kevin J. Anderson and published between 2002 and 2008. The series is set in a not-too-distant future where mysterious alien benefactors, the Ildirans, have helped humanity to spread out among the stars, colonizing a number of...

A fictional allotrope of hydrogen which is used to power the Ildiran stardrive, the only feasible method of interstellar travel at the start of the series.
Ice-nine
Ice-nine
Ice-nine is a fictional material appearing in Kurt Vonnegut's novel Cat's Cradle. It is supposed to be a more stable polymorph of water than common ice which instead of melting at 0 degrees Celsius , melts at 45.8 °C...

Kurt Vonnegut
Kurt Vonnegut
Kurt Vonnegut, Jr. was a 20th century American writer. His works such as Cat's Cradle , Slaughterhouse-Five and Breakfast of Champions blend satire, gallows humor and science fiction. He was known for his humanist beliefs and was honorary president of the American Humanist Association.-Early...

 in his novel Cat's Cradle
Cat's Cradle
Cat's Cradle is the fourth novel by American writer Kurt Vonnegut, first published in 1963. It explores issues of science, technology, and religion, satirizing the arms race and many other targets along the way...

It is described as a more stable polymorph
Polymorphism (materials science)
Polymorphism in materials science is the ability of a solid material to exist in more than one form or crystal structure. Polymorphism can potentially be found in any crystalline material including polymers, minerals, and metals, and is related to allotropy, which refers to chemical elements...

 of water
Water
Water is a chemical substance with the chemical formula H2O. A water molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at ambient conditions, but it often co-exists on Earth with its solid state, ice, and gaseous state . Water also exists in a...

 than common ice
Ice
Ice is water frozen into the solid state. Usually ice is the phase known as ice Ih, which is the most abundant of the varying solid phases on the Earth's surface. It can appear transparent or opaque bluish-white color, depending on the presence of impurities or air inclusions...

 (Ice Ih
Ice Ih
thumb|Photograph showing details of an ice cube under magnification. Ice Ih is the form of ice commonly seen on earth.Ice Ih is the hexagonal crystal form of ordinary ice, or frozen water. Virtually all ice in the biosphere is ice Ih, with the exception only of a small amount of ice Ic which is...

) which instead of melting when above 0° Celsius
Celsius
Celsius is a scale and unit of measurement for temperature. It is named after the Swedish astronomer Anders Celsius , who developed a similar temperature scale two years before his death...

 (32° Fahrenheit
Fahrenheit
Fahrenheit is the temperature scale proposed in 1724 by, and named after, the German physicist Daniel Gabriel Fahrenheit . Within this scale, the freezing of water into ice is defined at 32 degrees, while the boiling point of water is defined to be 212 degrees...

), melts only when the temperature is 45.8°C (114.4°F). Therefore it will be frozen at room temperature. When ice-nine comes into contact with liquid water below 45.8°C, it acts as a crystal "seed", and causes the solidification (freezing) of the entire body of water as crystalline ice-nine.

See also



External links

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