The oxide mineral class includes those 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 in which the oxide

Oxide

An oxide is a chemical compound that contains at least one oxygen atom in its chemical formula. Metal oxides typically contain an anion of oxygen in the oxidation state of −2....

 anion (O^2-) is bonded to one or more metal

Metal

A metal , is an element, compound, or alloy that is a good conductor of both electricity and heat. Metals are usually malleable and shiny, that is they reflect most of incident light...

 ions. The hydroxide

Hydroxide

Hydroxide is a diatomic anion with chemical formula OH−. It consists of an oxygen and a hydrogen atom held together by a covalent bond, and carrying a negative electric charge. It is an important but usually minor constituent of water. It functions as a base, as a ligand, a nucleophile, and a...

 bearing minerals are typically included in the oxide class. The minerals with complex anion groups such as the silicates, sulfates

Sulfate mineral

The sulfate minerals are a class of minerals which include the sulfate ion within their structure. The sulfate minerals occur commonly in primary evaporite depositional environments, as gangue minerals in hydrothermal veins and as secondary minerals in the oxidizing zone of sulfide mineral deposits...

, carbonates and phosphates are classed separately.

Simple oxides:

• X₂O and XO
  • Cuprite
    Cuprite
    Cuprite is an oxide mineral composed of copper oxide Cu2O, and is a minor ore of copper.Its dark crystals with red internal reflections are in the isometric system hexoctahedral class, appearing as cubic, octahedral, or dodecahedral forms, or in combinations. Penetration twins frequently occur...
    
     Cu₂O
  • 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...
    
     H₂O
  • Periclase group
    • Periclase
      Periclase
      Periclase occurs naturally in contact metamorphic rocks and is a major component of most basic refractory bricks. It is a cubic form of magnesium oxide ....
      
       MgO
    • Manganosite
      Manganosite
      Manganosite is a rare mineral composed of manganese oxide MnO. It was first described in 1817 for an occurrence in the Harz Mountains, Saxony-Anhalt, Germany. It has also been reported from Langban and Nordmark, Sweden and at Franklin Furnace, New Jersey. It also occurs in Japan, Kyrgyzstan and...
      
       MnO
  • Zincite group
    • Zincite
      Zincite
      Zincite is the mineral form of zinc oxide . Its crystal form is rare in nature; a notable exception to this is at the Franklin and Sterling Hill Mines in New Jersey, an area also famed for its many fluorescent minerals. It has a hexagonal crystal structure and a color that depends on the presence...
      
       ZnO
    • Bromellite
      Bromellite
      Bromellite, whose name derives from the Swedish chemist Magnus von Bromell , is a white oxide mineral, found in complex pegmatitic manganese-iron deposits, but is more frequently made synthetically...
      
       BeO
    • Tenorite
      Tenorite
      Tenorite is a copper oxide mineral with the simple formula CuO.-Occurrence:Tenorite occurs in the weathered or oxidized zone associated with deeper primary copper sulfide orebodies. Tenorite commonly occurs with chrysocolla and the copper carbonates, azurite and malachite. The dull grey-black color...
      
       CuO
    • Litharge
      Litharge
      Litharge is one of the natural mineral forms of lead oxide, PbO. Litharge is a secondary mineral which forms from the oxidation of galena ores. It forms as coatings and encrustations with internal tetragonal crystal structure. It is dimorphous with the orthorhombic form massicot...
      
       PbO
• X₂O₃
  • Hematite group
    • Corundum
      Corundum
      Corundum is a crystalline form of aluminium oxide with traces of iron, titanium and chromium. It is a rock-forming mineral. It is one of the naturally clear transparent materials, but can have different colors when impurities are present. Transparent specimens are used as gems, called ruby if red...
      
       Al₂O₃
    • Hematite
      Hematite
      Hematite, also spelled as haematite, is the mineral form of iron oxide , one of several iron oxides. Hematite crystallizes in the rhombohedral system, and it has the same crystal structure as ilmenite and corundum...
      
       Fe₂O₃
    • Ilmenite
      Ilmenite
      Ilmenite is a weakly magnetic titanium-iron oxide mineral which is iron-black or steel-gray. It is a crystalline iron titanium oxide . It crystallizes in the trigonal system, and it has the same crystal structure as corundum and hematite....
      
       FeTiO₃
• XO₂
  • Rutile group
    • Rutile
      Rutile
      Rutile is a mineral composed primarily of titanium dioxide, TiO2.Rutile is the most common natural form of TiO2. Two rarer polymorphs of TiO2 are known:...
      
       TiO₂
    • Pyrolusite
      Pyrolusite
      Pyrolusite is a mineral consisting essentially of manganese dioxide and is important as an ore of manganese. It is a black, amorphous appearing mineral, often with a granular, fibrous or columnar structure, sometimes forming reniform crusts. It has a metallic luster, a black or bluish-black...
      
       MnO₂
    • Cassiterite
      Cassiterite
      Cassiterite is a tin oxide mineral, SnO2. It is generally opaque, but it is translucent in thin crystals. Its luster and multiple crystal faces produce a desirable gem...
      
       SnO₂
  • Baddeleyite
    Baddeleyite
    Baddeleyite is a rare zirconium oxide mineral , occurring in a variety of monoclinic prismatic crystal forms. It is transparent to translucent, has high indices of refraction, and ranges from colorless to yellow, green, and dark brown. Baddeleyite is a refractory mineral, with a melting point of...
    
     ZrO₂
  • Uraninite
    Uraninite
    Uraninite is a radioactive, uranium-rich mineral and ore with a chemical composition that is largely UO2, but also contains UO3 and oxides of lead, thorium, and rare earth elements...
    
     UO₂
  • Thorianite
    Thorianite
    Thorianite is a rare mineral, originally discovered by Ananda Coomaraswamy in 1904 as uraninite, but recognized as a new species by Wyndham R. Dunstan. It was so named on account of its high percentage of thorium ; it also contains the oxides of uranium, lanthanum, cerium and didymium...
    
     ThO₂
• XY₂O₄
  • Spinel group
    • Spinel
      Spinel
      Spinel is the magnesium aluminium member of the larger spinel group of minerals. It has the formula MgAl2O4. Balas ruby is an old name for a rose-tinted variety.-Spinel group:...
      
       MgAl₂O₄
    • Gahnite
      Gahnite
      Gahnite, ZnAl2O4, is a rare mineral belonging to the spinel group. It forms octahedral crystals which may be green, blue, yellow, brown or grey. It occurs in Falun, Sweden where it is found in pegmatites and skarns, contact metamorphic rocks...
      
       ZnAl₂O₄
    • Magnetite
      Magnetite
      Magnetite is a ferrimagnetic mineral with chemical formula Fe3O4, one of several iron oxides and a member of the spinel group. The chemical IUPAC name is iron oxide and the common chemical name is ferrous-ferric oxide. The formula for magnetite may also be written as FeO·Fe2O3, which is one part...
      
       Fe₃O₄ (Fe²⁺Fe³⁺₂O₄)
    • Franklinite
      Franklinite
      Franklinite is a mineral with formula ZnFe2O4. It is associated with the Franklin Mine and Sterling Hill Mines in New Jersey.-See also:* Spinel* Classification of minerals* List of minerals-References:*...
      
       (Zn,Fe,Mn)(Fe,Mn)₂O₄
    • Chromite
      Chromite
      Chromite is an iron chromium oxide: FeCr2O4. It is an oxide mineral belonging to the spinel group. Magnesium can substitute for iron in variable amounts as it forms a solid solution with magnesiochromite ; substitution of aluminium occurs leading to hercynite .-Occurrence:Chromite is found in...
      
       FeCr₂O₄
  • Chrysoberyl
    Chrysoberyl
    The mineral or gemstone chrysoberyl is an aluminate of beryllium with the formula BeAl2O4. The name chrysoberyl is derived from the Greek words χρυσός chrysos and βήρυλλος beryllos, meaning "a gold-white spar". Despite the similarity of their names, chrysoberyl and beryl are two completely...
    
     BeAl₂O₄
  • Columbite
    Columbite
    Columbite, also called niobite, niobite-tantalite and columbate [2O6], is a black mineral group that is an ore of niobium and tantalum. It has a submetallic luster and a high density and is a niobate of iron and manganese, containing tantalate of iron. This mineral group was first found in Haddam,...
    
    (Fe,Mn)(Nb,Ta)₂O₆

Hyroxide subgroup:

• Brucite
  Brucite
  Brucite is the mineral form of magnesium hydroxide, with the chemical formula Mg2. It is a common alteration product of periclase in marble; a low-temperature hydrothermal vein mineral in metamorphosed limestones and chlorite schists; and formed during serpentinization of dunites...
  
   Mg(OH)₂
• Manganite
  Manganite
  Manganite is a mineral. Its composition is manganese oxide-hydroxide, MnO, crystallizing in the monoclinic system . Crystals of manganite are prismatic and deeply striated parallel to their length; they are often grouped together in bundles. The color is dark steel-grey to iron-black, and the...
  
   MnO(OH)
• Romanechite
  Romanèchite
  Romanèchite is the primary constituent of psilomelane, which is a mixture of minerals. Most psilomelane is not pure romanechite, so it is incorrect to consider them synonyms. Romanèchite is a valuable ore of manganese, which is used in steelmaking. It has a monoclinic crystal structure, a hardness...
  
   BaMn²⁺Mn⁴⁺₈O₁₆(OH)₄
• Goethite group
  • Diaspore
    Diaspore
    Diaspore is a native aluminium oxide hydroxide, α-AlO, crystallizing in the orthorhombic system and isomorphous with goethite. It occurs sometimes as flattened crystals, but usually as lamellar or scaly masses, the flattened surface being a direction of perfect cleavage on which the lustre is...
    
     αAlO(OH)
  • Goethite
    Goethite
    Goethite , named after the German polymath Johann Wolfgang von Goethe, is an iron bearing oxide mineral found in soil and other low-temperature environments. Goethite has been well known since prehistoric times for its use as a pigment. Evidence has been found of its use in paint pigment samples...
    
     αFeO(OH)

Nickel–Strunz Classification -04- Oxides

IMA

International Mineralogical Association

The International Mineralogical Association is an international group of 38 national societies. The goal is to promote the science of mineralogy and to standardize the nomenclature of the 4000 plus known mineral species...

-CNMNC proposes a new hierarchical scheme (Mills et al., 2009). This list uses it to modify the Classification of Nickel–Strunz

Strunz classification

Nickel–Strunz classification is a scheme for categorizing minerals based upon their chemical composition, introduced by German mineralogist Karl Hugo Strunz in his 1941 Mineralogische Tabellen. The 4th edition was edited by Christel Tennyson too . It was followed by A.S...

 (10 ed, pending publication).

• Abbreviations:
  • "*" - discredited (IMA/CNMNC status).
  • "?" - questionable/doubtful (IMA/CNMNC status).
  • "REE" - Rare-earth element
    Rare earth element
    As defined by IUPAC, rare earth elements or rare earth metals are a set of seventeen chemical elements in the periodic table, specifically the fifteen lanthanides plus scandium and yttrium...
    
     (Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu)
  • "PGE" - Platinum-group element
    Platinum group
    The platinum group metals is a term used sometimes to collectively refer to six metallic elements clustered together in the periodic table.These elements are all transition metals, lying in the d-block .The six...
    
     (Ru, Rh, Pd, Os, Ir, Pt)
  • 03.C Aluminofluorides, 06 Borates, 08 Vanadates (04.H V^[5,6] Vanadates), 09 Silicates:
    • Neso: insular (from Greek
      Greek language
      Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...
      
       νησος nēsos, island)
    • Soro: grouping (from Greek σωροῦ sōros, heap, mound (especially of corn))
    • Cyclo: ring
    • Ino: chain (from Greek ις [genitive: ινος inos], fibre)
    • Phyllo: sheet (from Greek φύλλον phyllon, leaf)
    • Tekto: three-dimensional framework
• Nickel–Strunz code scheme: NN.XY.##x
  • NN: Nickel–Strunz mineral class number
  • X: Nickel–Strunz mineral division letter
  • Y: Nickel–Strunz mineral family letter
  • ##x: Nickel–Strunz mineral/group number, x add-on letter

Class: oxides

• 04.A Metal:Oxygen = 2.1 and 1:1
  • 04.AA Cation:Anion (M:O) = 2:1 (and 1.8:1): 05 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...
    
    , 10 Cuprite
    Cuprite
    Cuprite is an oxide mineral composed of copper oxide Cu2O, and is a minor ore of copper.Its dark crystals with red internal reflections are in the isometric system hexoctahedral class, appearing as cubic, octahedral, or dodecahedral forms, or in combinations. Penetration twins frequently occur...
    
    , 15 Paramelaconite
  • 04.AB M:O = 1:1 (and up to 1:1.25); with small to medium-sized cations only: 05 Crednerite, 10 Tenorite
    Tenorite
    Tenorite is a copper oxide mineral with the simple formula CuO.-Occurrence:Tenorite occurs in the weathered or oxidized zone associated with deeper primary copper sulfide orebodies. Tenorite commonly occurs with chrysocolla and the copper carbonates, azurite and malachite. The dull grey-black color...
    
    ; 15 Delafossite, 15 Mcconnellite; 20 Bromellite
    Bromellite
    Bromellite, whose name derives from the Swedish chemist Magnus von Bromell , is a white oxide mineral, found in complex pegmatitic manganese-iron deposits, but is more frequently made synthetically...
    
    , 20 Zincite
    Zincite
    Zincite is the mineral form of zinc oxide . Its crystal form is rare in nature; a notable exception to this is at the Franklin and Sterling Hill Mines in New Jersey, an area also famed for its many fluorescent minerals. It has a hexagonal crystal structure and a color that depends on the presence...
    
    ; 25 Lime, 25 Bunsenite, 25 Monteponite, 25 Manganosite
    Manganosite
    Manganosite is a rare mineral composed of manganese oxide MnO. It was first described in 1817 for an occurrence in the Harz Mountains, Saxony-Anhalt, Germany. It has also been reported from Langban and Nordmark, Sweden and at Franklin Furnace, New Jersey. It also occurs in Japan, Kyrgyzstan and...
    
    , 25 Periclase
    Periclase
    Periclase occurs naturally in contact metamorphic rocks and is a major component of most basic refractory bricks. It is a cubic form of magnesium oxide ....
    
    , 25 Wustite
    Wüstite
    Wüstite is a mineral form of iron oxide found with meteorites and native iron. It has a gray color with a greenish tint in reflected light. Wüstite crystallizes in the isometric - hexoctahedral crystal system in opaque to translucent metallic grains. It has a Mohs hardness of 5 to 5.5 and a...
    
    
  • 04.AC M:O = 1:1 (and up to 1:1.25); with large cations (± smaller ones): 05 Swedenborgite; 10 Brownmillerite
    Brownmillerite
    Brownmillerite is a mineral with an interesting structure. Its chemical formula is Ca22O5. It is named for Lorrin Thomas Brownmiller , chief chemist of the Alpha Portland Cement Company, Easton, Pennsylvania....
    
    , 10 Srebrodolskite; 15 Montroydite, 20 Litharge
    Litharge
    Litharge is one of the natural mineral forms of lead oxide, PbO. Litharge is a secondary mineral which forms from the oxidation of galena ores. It forms as coatings and encrustations with internal tetragonal crystal structure. It is dimorphous with the orthorhombic form massicot...
    
    , 20 Romarchite, 25 Massicot
    Massicot
    Massicot is one of the natural mineral forms of lead oxide, PbO. Massicot is the orthorhombic dimorph of the tetragonal form of lead oxide, litharge. It forms soft yellow to reddish-yellow, earthy, scaley masses which are very dense, with a specific gravity of 9.64.It was first described in 1841...
    
    
• 04.B Metal:Oxygen = 3:4 and similar
  • 04.BA With small and medium-sized cations: 05 Chrysoberyl
    Chrysoberyl
    The mineral or gemstone chrysoberyl is an aluminate of beryllium with the formula BeAl2O4. The name chrysoberyl is derived from the Greek words χρυσός chrysos and βήρυλλος beryllos, meaning "a gold-white spar". Despite the similarity of their names, chrysoberyl and beryl are two completely...
    
    , 10 Manganostibite
  • 04.BB With only medium-sized cations: 05 Filipstadite, 05 Donathite?, 05 Gahnite
    Gahnite
    Gahnite, ZnAl2O4, is a rare mineral belonging to the spinel group. It forms octahedral crystals which may be green, blue, yellow, brown or grey. It occurs in Falun, Sweden where it is found in pegmatites and skarns, contact metamorphic rocks...
    
    , 05 Galaxite
    Galaxite
    Galaxite is a spinel mineral with the chemical formula 2O4. It has a vitreous luster and is brownish red. It also leaves a brownish red streak...
    
    , 05 Hercynite
    Hercynite
    Hercynite is a spinel mineral with the formula FeAl2O4.It occurs in high-grade metamorphosed iron rich argillaceous sediments as well as in mafic and ultramafic igneous rocks. Due to its hardness it also is found in placers....
    
    , 05 Spinel
    Spinel
    Spinel is the magnesium aluminium member of the larger spinel group of minerals. It has the formula MgAl2O4. Balas ruby is an old name for a rose-tinted variety.-Spinel group:...
    
    , 05 Cochromite, 05 Chromite
    Chromite
    Chromite is an iron chromium oxide: FeCr2O4. It is an oxide mineral belonging to the spinel group. Magnesium can substitute for iron in variable amounts as it forms a solid solution with magnesiochromite ; substitution of aluminium occurs leading to hercynite .-Occurrence:Chromite is found in...
    
    , 05 Magnesiochromite, 05 Manganochromite, 05 Nichromite
    Nichromite
    Nichromite 2O4 is a black cubic metallic mineral and member of the spinel group. Nichromite was originally reported from the Bon Accord nickel deposit in Barberton District, South Africa...
    
    , 05 Zincochromite
    Zincochromite
    Zincochromite is a zinc chromium oxide mineral with formula ZnCr2O4 It is the zinc analogue of chromite, hence the name.It was first described in 1987 for an occurrence in a uranium deposit near Onega Lake, Padma, Zaonezhskii Peninsula, southern Karelia, Russia...
    
    , 05 Magnetite
    Magnetite
    Magnetite is a ferrimagnetic mineral with chemical formula Fe3O4, one of several iron oxides and a member of the spinel group. The chemical IUPAC name is iron oxide and the common chemical name is ferrous-ferric oxide. The formula for magnetite may also be written as FeO·Fe2O3, which is one part...
    
    , 05 Cuprospinel
    Cuprospinel
    Cuprospinel, occurs naturally in Baie Verte, Newfoundland, Canada. The mineral was found in an exposed ore dump, on the property of Consolidated Rambler Mines Limited near Baie Verte, Newfoundland...
    
    , 05 Franklinite
    Franklinite
    Franklinite is a mineral with formula ZnFe2O4. It is associated with the Franklin Mine and Sterling Hill Mines in New Jersey.-See also:* Spinel* Classification of minerals* List of minerals-References:*...
    
    , 05 Jacobsite
    Jacobsite
    Jacobsite is a manganese iron oxide mineral. It is in the spinel group and forms a solid solution series with magnetite. The chemical formula is MnFe2O4 or with oxidation states and substitutions:2O4....
    
    , 05 Magnesioferrite
    Magnesioferrite
    Magnesioferrite is a magnesium iron oxide mineral, a member of the magnetite series of spinels.Magnesioferrite crystallizes as black metallic octahedral crystals.It is named after its chemical composition of magnesium and ferric iron....
    
    , 05 Trevorite
    Trevorite
    Trevorite is a very rare nickeliferous mineral belonging to the spinel group. It has the chemical formula NiFe3+2O4. It is a black mineral with the typical spinel properties of crystallising in the cubic system, black streaked, infusible and insoluble in most acids.There is at least partial solid...
    
    , 05 Brunogeierite, 05 Coulsonite, 05 Magnesiocoulsonite, 05 Qandilite, 05 Ulvospinel
    Ulvöspinel
    Ulvöspinel or ulvite is an iron titanium oxide mineral with formula: Fe2TiO4 or TiFe2+2O4. It forms brown to black metallic isometric crystals with a Mohs hardness of 5.5 to 6...
    
    , 05 Vuorelainenite; 10 Hydrohetaerolite, 10 Hausmannite
    Hausmannite
    Hausmannite is a complex oxide of manganese containing both di- and tri-valent manganese. The formula can be represented as Mn2+Mn3+2O4. It belongs to the spinel group and forms tetragonal crystals...
    
    , 10 Iwakiite, 10 Hetaerolite; 15 Maghemite
    Maghemite
    Maghemite is a member of the family of iron oxides. It has the same structure as magnetite, that is, it is spinel ferrite and is also ferrimagnetic.Maghemite can be considered as an Fe-deficient magnetite with formula...
    
    , 20 Tegengrenite, 25 Xieite
  • 04.BC With medium-sized and large cations: 05 Marokite, 10 Dmitryivanovite
    Dmitryivanovite
    Dmitryivanovite is a natural mineral composed of calcium, aluminium and oxygen, with the molecular formula CaAl2O4. It was reported in 2009 in a calcium-aluminium-rich inclusion in the carbonaceous chondrite meteorite 470 CH3, which landed in North Africa. The mineral name was chosen to honor...
    
    
  • 04.BD With only large cations: 05 Minium
    Minium (mineral)
    Minium is the naturally occurring form of lead tetroxide, Pb2+2Pb4+O4. It is a light to vivid red and may have brown to yellow tints. It typically occurs as scaly to earthy masses. It crystallizes in the tetragonal crystal system....
    
    
• 04.C Metal:Oxygen = 2:3, 3:5, and Similar
  • 04.CB With medium-sized cations: 05 Tistarite, 05 Auroantimonate*, 05 Brizziite-VII, 05 Brizziite-III, 05 Corundum
    Corundum
    Corundum is a crystalline form of aluminium oxide with traces of iron, titanium and chromium. It is a rock-forming mineral. It is one of the naturally clear transparent materials, but can have different colors when impurities are present. Transparent specimens are used as gems, called ruby if red...
    
    , 05 Eskolaite, 05 Hematite
    Hematite
    Hematite, also spelled as haematite, is the mineral form of iron oxide , one of several iron oxides. Hematite crystallizes in the rhombohedral system, and it has the same crystal structure as ilmenite and corundum...
    
    , 05 Karelianite, 05 Geikielite, 05 Ecandrewsite, 05 Ilmenite
    Ilmenite
    Ilmenite is a weakly magnetic titanium-iron oxide mineral which is iron-black or steel-gray. It is a crystalline iron titanium oxide . It crystallizes in the trigonal system, and it has the same crystal structure as corundum and hematite....
    
    , 05 Pyrophanite, 05 Melanostibite, 05 Romanite*; 10 Bixbyite
    Bixbyite
    Bixbyite is a manganese iron oxide mineral with formula: 2O3. The iron:manganese ratio is quite variable and many specimens have almost no iron. It is a metallic dark black with a Mohs hardness of 6.0 - 6.5...
    
    , 10 Avicennite; 15 Armalcolite
    Armalcolite
    Armalcolite is a titanium-rich mineral with the chemical formula Ti2O5. It was first found at Tranquility Base on the Moon in 1969 and named for Armstrong, Aldrin and Collins, the three Apollo 11 astronauts. Together with tranquillityite and pyroxferroite, it is one of the three minerals which...
    
    , 15 Mongshanite*, 15 Pseudobrookite; 20 Magnesiohogbomite-6N6S, 20 Magnesiohogbomite-2N3S, 20 Magnesiohogbomite-2N2S, 20 Zincohogbomite-2N2S, 20 Ferrohogbomite-2N2S; 25 Pseudorutile, 25 Ilmenorutile; 30 Oxyvanite, 30 Berdesinskiite; 35 Olkhonskite, 35 Schreyerite
    Schreyerite
    Schreyerite , is a vanadium, titanium oxide mineral found in the Lasamba Hill, Kwale district in Coast Province Kenya. It is a polymorph of kyzylkumite....
    
    ; 40 Kamiokite
    Kamiokite
    Kamiokite is an iron-molybdenum oxide mineral with the chemical formula Fe2Mo3O8. The name kamiokite is derived from the locality, the Kamioka Mine in Gifu Prefecture, Japan, where this mineral was first discovered in 1975....
    
    , 40 Nolanite, 40 Rinmanite; 45 Stibioclaudetite, 45 Claudetite
    Claudetite
    Claudetite is an arsenic mineral chemical formula As2O3.It is named for the french chemist, F. Claudet. Claudetite is formed as an oxidation product of arsenic sulfides and is colorless or white. It can be associated with arsenolite as well as realgar, orpiment and sulfur....
    
    ; 50 Arsenolite
    Arsenolite
    Arsenolite is an arsenic mineral, chemical formula As2O3. It is formed as an oxidation product of arsenic sulfides. Commonly found as small octahedra it is white, but impurities of realgar or orpiment may give it a pink or yellow hue...
    
    , 50 Senarmontite; 55 Valentinite
    Valentinite
    Valentinite is an antimony oxide mineral with formula Sb2O3. Valentinite crystallizes in the orthorhombic system and typically forms as radiating clusters of euhedral crystals or as fibrous masses. It is colorless to white with occasional shades or tints of yellow and red. It has a Mohs hardness of...
    
    , 60 Bismite
    Bismite
    Bismite is a bismuth oxide mineral, bismuth trioxide or Bi2O3. It is a monoclinic mineral, but the typical form of occurrence is massive and clay-like with no macroscopic crystals. The color varies from green to yellow. It has a Mohs hardness of 4 to 5 and a specific gravity of 8.5 to 9.5, quite...
    
    , 65 Sphaerobismoite, 70 Sillenite, 75 Kyzylkumite
  • 04.CC With large and medium-sized cations: 05 Chrombismite, 10 Freudenbergite, 15 Grossite
    Grossite
    Grossite is a calcium aluminium oxide mineral with formula CaAl4O7. It is a colorless to white vitreous mineral which crystallizes in the monoclinic crystal system.Grossite was first described 1994 for an occurrence in the Hatrurim Formation of Israel...
    
    , 20 Mayenite
    Mayenite
    Mayenite , Ca12Al14O33, is a rare cubic mineral of cubic symmetry, originally reported from Eifel volcanic complex . It is also found at pyrometamorphic sites: e.g., in the Hatrurim Formation and in some burned coal dumps. The formula can be written as [Ca12Al14O32]O, which refers to the unique...
    
    , 25 Yafsoanite; 30 Barioperovskite, 30 Lakargiite, 30 Natroniobite, 30 Latrappite, 30 Lueshite, 30 Perovskite
    Perovskite
    A perovskite structure is any material with the same type of crystal structure as calcium titanium oxide , known as the perovskite structure, or XIIA2+VIB4+X2−3 with the oxygen in the face centers. Perovskites take their name from this compound, which was first discovered in the Ural mountains of...
    
    ; 35 Macedonite, 35 Isolueshite, 35 Loparite-(Ce)
    Loparite-(Ce)
    Loparite- is a granular, brittle oxide mineral of the perovskite class. It is black to dark grey and may appear grey to white in reflected light on polished thin section with reddish brown internal reflections. It has the chemical formula of O3...
    
    , 35 Tausonite; 40 Crichtonite, 40 Dessauite, 40 Davidite
    Davidite
    Davidite is a rare earth oxide mineral with chemical end members La and Ce. It exists in two forms:*Davidite- 20O38 discovered at Radium Hill mine, South Australia in 1906 and named for Australian geologist Tenatt William Edgeworth David .*Davidite- 20O38 first described in 1960 from Vemork,...
    
    -(Ce), 40 Davidite-(La), 40 Mathiasite, 40 Lindsleyite, 40 Landauite, 40 Loveringite
    Loveringite
    Loveringite is a rare metallic oxide mineral of the crichtonite group with the chemical formula 21O38. It is a late-stage magmatic mineral, formed in the residual melt of mafic layered intrusions in either the olivine-chromite, pyroxene, or plagioclase-rich layers.-Discovery and...
    
    , 40 Loveringite
    Loveringite
    Loveringite is a rare metallic oxide mineral of the crichtonite group with the chemical formula 21O38. It is a late-stage magmatic mineral, formed in the residual melt of mafic layered intrusions in either the olivine-chromite, pyroxene, or plagioclase-rich layers.-Discovery and...
    
    , 40 Cleusonite
    Cleusonite
    Cleusonite is a member of the crichtonite group of minerals with a chemical formula of 1838. This group of minerals contains approximately thirteen complex metal titanates. The structures of minerals of this group is complicated by frequent fine-scale twinning and metamictization due to...
    
    , 40 Gramaccioliite-(Y); 45 Hawthorneite, 45 Magnetoplumbite, 45 Haggertyite
    Haggertyite
    Haggertyite is a rare barium, iron, magnesium, titanate mineral: BaO19 first described in 1996 from the Crater of Diamonds State Park near Murfreesboro in Pike County, Arkansas...
    
    , 45 Batiferrite, 45 Hibonite
    Hibonite
    Hibonite is a brownish black mineral with a hardness of 7.5-8.0 and a hexagonal crystal structure. It is rare, but is found in high-grade metamorphic rocks on Madagascar. Some presolar grains in primitive meteorites consist of hibonite. Hibonite also is a common mineral in the Ca-Al-rich...
    
    , 45 Nezilovite, 45 Yimengite, 45 Diaoyudaoite, 45 Lindqvistite, 45 Plumboferrite; 50 Jeppeite, 55 Zenzenite, 60 Mengxianminite*
• 04.D Metal:Oxygen = 1:2 and similar
  • 04.DA With small cations
    • (moved to -09- Subclass: tektosilicates)
  • 04.DB With medium-sized cations; chains of edge-sharing octahedra: 05 Tripuhyite
    Tripuhyite
    -Nomenclature:The name of the mineral comes from the localilty of Tripuhy, Minas Gerais, Brazil, where it was discovered. Hussak and Prior first described the mineral tripuhyite as an oxide of iron and antimony, and assigned it the composition Fe2Sb2O7...
    
    , 05 Tugarinovite, 05 Varlamoffite*, 05 Argutite
    Argutite
    Argutite is a rare germanium oxide mineral. It is a member of the rutile group.It was first described for an occurrence in the Argut deposit, central Pyrenees, Haute-Garonne, France in 1983. The type locality is within a zinc ore deposit within lower Paleozoic sedimentary rocks that have...
    
    , 05 Cassiterite
    Cassiterite
    Cassiterite is a tin oxide mineral, SnO2. It is generally opaque, but it is translucent in thin crystals. Its luster and multiple crystal faces produce a desirable gem...
    
    , 05 Rutile
    Rutile
    Rutile is a mineral composed primarily of titanium dioxide, TiO2.Rutile is the most common natural form of TiO2. Two rarer polymorphs of TiO2 are known:...
    
    , 05 Pyrolusite
    Pyrolusite
    Pyrolusite is a mineral consisting essentially of manganese dioxide and is important as an ore of manganese. It is a black, amorphous appearing mineral, often with a granular, fibrous or columnar structure, sometimes forming reniform crusts. It has a metallic luster, a black or bluish-black...
    
    , 05 Plattnerite
    Plattnerite
    Plattnerite is an oxide mineral and is the beta crystalline form of lead dioxide , scrutinyite being the other, alpha form. It was first reported in 1845 and named after German mineralogist Karl Friedrich Plattner...
    
    , 05 Squawcreekite?; 10 Bystromite, 10 Ordonezite
    Ordóñezite
    Ordóñezite is a rare tetragonal zinc antimonate mineral with chemical formula: ZnSb2O6.-Discovery:Ordóñezite was first discovered and documented by Ezequiel Ordóñez , a Mexican geologist, formerly director of the Geological Institute of Mexico....
    
    , 10 Tapiolite
    Tapiolite
    Tapiolite [2O6] is a black mineral that is an ore of niobium and tantalum. It has a submetallic luster and a high specific gravity and is a niobate of iron and manganese, containing tantalate of iron....
    
    -(Fe), 10 Tapiolite-(Mn), 10 Tapiolite*, 15a Paramontroseite, 15a Ramsdellite, 15b Akhtenskite
    Akhtenskite
    Akhtenskite is a mineral with the chemical formula of MnO2 that was named after the Akhtensk deposit. The deposit can be found in Russia, where it was first discovered and noted in 1979. It can be found in the Akhtensk brown ironstone deposit, in the southern Ural Mountains, on Mt. Zarod, on the...
    
    , 15c Nsutite
    Nsutite
    Nsutite is a manganese oxide mineral with formula: . It is found in most large manganese deposits and was first discovered in Nsuta, Ghana. Since then, it has been found worldwide. Nsutite is a dull mineral with a hardness of 6.5-8.5 and an average specific gravity of 4.45...
    
    ; 20 Scrutinyite
    Scrutinyite
    Scrutinyite is a rare oxide mineral and is the alpha crystalline form of lead dioxide , plattnerite being the other, beta form. The mineral was first reported in 1988 and its name reflects the scrutiny and efforts required to identify it from a very limited amount of available sample...
    
    ; 25 Ixiolite, 25 Ishikawaite, 25 Srilankite, 25 Samarskite
    Samarskite
    Samarskite is a radioactive rare earth mineral series which includessamarskite- with formula: 22O8and samarskite- with formula 22O8 The formula for smarskite- is also given as: O4...
    
    -(Y), 25 Samarskite-(Yb), 25 Yttrocolumbite-(Y); 30 Heftetjernite, 30 Wolframoixiolite*, 30 Krasnoselskite*, 30 Ferberite
    Ferberite
    Ferberite is the iron endmember of the manganese - iron wolframite solid solution series. The manganese endmember is hübnerite. Ferberite is a black monoclinic mineral composed of iron and tungstate, FeWO4....
    
    , 30 Hubnerite
    Hübnerite
    Hübnerite or hubnerite is a mineral consisting of manganese tungstate . It is the manganese endmember of the manganese - iron wolframite solid solution series....
    
    , 30 Sanmartinite, 30 Wolframite
    Wolframite
    Wolframite WO4, is an iron manganese tungstate mineral that is the intermediate between ferberite and huebernite . Along with scheelite, the wolframite series are the most important tungsten ore minerals. Wolframite is found in quartz veins and pegmatites associated with granitic intrusives...
    
    *; 35 Tantalite
    Tantalite
    Tantalite, [2O6], is a mineral group that is close to columbite. The two are often grouped together as a semi-singular mineral called coltan or "columbite-tantalite" in many mineral guides. However, tantalite has a much greater specific gravity than columbite...
    
    -(Mg), 35 Tantalite-(Fe), 35 Tantalite-(Mn), 35 Columbite
    Columbite
    Columbite, also called niobite, niobite-tantalite and columbate [2O6], is a black mineral group that is an ore of niobium and tantalum. It has a submetallic luster and a high density and is a niobate of iron and manganese, containing tantalate of iron. This mineral group was first found in Haddam,...
    
    -(Mg), 35 Columbite-(Fe), 35 Columbite-(Mn), 35 Qitianlingite; 40 Ferrowodginite, 40 Lithiotantite, 40 Lithiowodginite, 40 Tantalowodginite*, 40 Titanowodginite
    Titanowodginite
    Titanowodginite is a mineral with the chemical formula MnTiTa2O8. Titanowodginite has a Mohs hardness of 5.5 and a vitreous luster. It is an iridescent dark brown to black crystal that commonly forms in a matrix of smoky quartz or white beryl in a complex zoned pegmatite.It was first described in...
    
    , 40 Wodginite
    Wodginite
    Wodginite is a manganese, tin, tantalum oxide mineral with formula Mn2+Ta2O8. It may include significant niobium.Wodginite was firsr described in 1963 for an occurrence in the Wodgina pegmatite, Wodgina, Pilbara Region, Western Australia....
    
    , 40 Ferrotitanowodginite; 45 Tivanite, 50 Carmichaelite, 55 Alumotantite, 60 Biehlite
    Biehlite
    Biehlite is an exceptionally rare mineral, an antimony arsenic bearing molybdate with formula [O]2MoO4. It comes from Tsumeb....
    
    
  • 04.DC With medium-sized cations; sheets of edge-sharing octahedra: 05 Bahianite, 10 Simpsonite
    Simpsonite
    Simpsonite has a general formula of Al43O13. It occurs as euhedral to subhedral tabular to short and prismatic crystals, commonly in subparallel groups. Under the petrographic microscope it has a very high relief....
    
    
  • 04.DD With medium-sized cations; frameworks of edge-sharing octahedra: 05 Anatase
    Anatase
    Anatase is one of the three mineral forms of titanium dioxide, the other two being brookite and rutile. It is always found as small, isolated and sharply developed crystals, and like rutile, a more commonly occurring modification of titanium dioxide, it crystallizes in the tetragonal system; but,...
    
    , 10 Brookite
    Brookite
    Brookite is orthorhombic, and one of the four naturally occurring polymorphs of titanium dioxide, TiO2, approved by the International Mineralogical Association . The others are akaogiite , anatase and rutile...
    
    
  • 04.DE With medium-sized cations; with various polyhedra: 05 Downeyite, 10 Koragoite; 15 Koechlinite, 15 Russellite
    Russellite
    Russellite is a bismuth tungstate mineral with the chemical formula Bi2WO6. It crystallizes in the orthorhombic crystal system. Russellite is yellow or yellow-green in color, with a Mohs hardness of 3½....
    
    , 15 Tungstibite; 20 Tellurite
    Tellurite
    Tellurite is a rare oxide mineral composed of tellurium dioxide .It occurs as prismatic to acicular transparent yellow to white orthorhombic crystals. It occurs in the oxidation zone of mineral deposits in association with native tellurium, emmonsite and other tellurium minerals. Its name comes...
    
    , 25 Paratellurite; 30 Cervantite
    Cervantite
    Cervantite is an antimony oxide mineral with formula Sb3+Sb5+O4 .It was first described in 1850 for an occurrence in Cervantes, Sierra de Ancares, Lugo, Galicia, Spain, and named for the locality. The mineral was questioned and disapproved, but re-approved and verified in 1962 based on material...
    
    , 30 Bismutotantalite, 30 Bismutocolumbite, 30 Clinocervantite, 30 Stibiocolumbite, 30 Stibiotantalite; 35 IMA2007-058, 35 Baddeleyite
    Baddeleyite
    Baddeleyite is a rare zirconium oxide mineral , occurring in a variety of monoclinic prismatic crystal forms. It is transparent to translucent, has high indices of refraction, and ranges from colorless to yellow, green, and dark brown. Baddeleyite is a refractory mineral, with a melting point of...
    
    
  • 04.DF With large (± medium-sized) cations; dimers and trimers of edge-sharing octahedra: 05 Nioboaeschynite-(Y), 05 Aeschynite-(Ce)
    Aeschynite-(Ce)
    Aeschynite- is a rare earth mineral of cerium, calcium, iron, thorium, titanium, niobium, oxygen, and hydrogen with formula: 26. Its name comes from the Greek word for "shame". The "-" means it has more cerium than the yttrium variety aeschynite-. Its Mohs scale rating is 5-6....
    
    , 05 Aeschynite-(Nd)
    Aeschynite-(Nd)
    Aeschynite- is a rare earth mineral of neodymium, cerium, calcium, thorium, titanium, niobium, oxygen, and hydrogen with formula: 26. Its name comes from the Greek word for "shame". Its Mohs scale rating is 5 to 6....
    
    , 05 Aeschynite-(Y)
    Aeschynite-(Y)
    Aeschynite- is a rare earth mineral of yttrium, calcium, iron, thorium, titanium, niobium, oxygen, and hydrogen with formula: 26. Its name comes from the Greek word for "shame". Its Mohs scale rating is 5 to 6.-References:**...
    
    , 05 Nioboaeschynite-(Ce), 05 Nioboaeschynite-(Nd), 05 Tantalaeschynite-(Y), 05 Rynersonite
    Rynersonite
    Rynersonite is an oxide mineral. It crystallizes in the orthorhombic crystal system. It is dull, translucent mineral, fibrous in nature. Usually off-white to pale pink in color...
    
    , 05 Vigezzite, 10 Changbaiite
    Changbaiite
    Changbaiite is a member of the oxide mineral class in which the mineral contains oxygen grouped with one or two metal ion. Changbaiite is classified as a multiple Oxide XY2O6 and it generally have ionic bond...
    
    , 15 Murataite
  • 04.DG With large (± medium-sized) cations; chains of edge-sharing octahedra: 05 Euxenite-(Y), 05 Loranskite-(Y), 05 Polycrase-(Y), 05 Uranopolycrase, 05 Fersmite, 05 Kobeite-(Y), 05 Tanteuxenite-(Y), 05 Yttrocrasite-(Y); 10 Fergusonite-beta-(Nd), 10 Fergusonite-beta-(Y), 10 Fergusonite-beta-(Ce), 10 Yttrotantalite-(Y); 15 Foordite, 15 Thoreaulite; 20 Raspite
    Raspite
    Raspite is a mineral, a lead tungstate; with the formula PbWO4. It forms yellow to yellowish brown monoclinic crystals. It is the low temperature monoclinic dimorph of the tetragonal stolzite....
    
    
  • 04.DH With large (± medium-sized) cations; sheets of edge-sharing octahedra:
    • IMA/CNMNC revised the Pyrochlore supergroup 2010 (04.DH.15 and 04.DH.20)
    • 05 Brannerite, 05 Orthobrannerite, 05 Thorutite; 10 Kassite
      Kassite
      Kassite is a rare mineral with formula CaTi2O42. It crystallizes in the orthorhombic crystal system and forms radiating rosettes and pseudo-hexagonal tabular crystals which are commonly twinned. Crystals are brownish pink to pale yellow and are translucent with an adamantine luster...
      
      , 10 Lucasite-(Ce)
    • Pyrochlore
      Pyrochlore
      Pyrochlore 2Nb2O6 is a solid solution between the niobium end member , and the tantalum end member .-Occurrence:...
      
       group: Fluorcalciopyrochlore, Fluorkenopyrochlore, Fluornatropyrochlore, Fluorstrontiopyrochlore, Hydropyrochlore, Hydroxycalciopyrochlore, Kenoplumbopyrochlore, Oxycalciopyrochlore, Oxynatropyrochlore, Oxyplumbopyrochlore, Oxyyttropyrochlore-(Y)
    • Microlite
      Microlite
      Microlite is a pale-yellow, reddish-brown, or black isometric mineral composed of sodium calcium tantalum oxide with a small amount of fluorine 2Ta2O6. Microlite is a mineral in the pyrochlore group that occurs in pegmatites and constitutes an ore of tantalum. It has a Mohs hardness of 5.5 and a...
      
       group: Fluorcalciomicrolite, Fluornatromicrolite, Hydrokenomicrolite, Hydromicrolite, Hydroxykenomicrolite, Kenoplumbomicrolite, Oxycalciomicrolite, Oxystannomicrolite, Oxystibiomicrolite
    • Romeite
      Romeite
      Roméite is a calcium antimonate mineral with the formula 22O6. Roméite is a honey-yellow mineral crystallizing in the hexoctahedral crystal system. It has a Mohs hardness of 5.5-6.0...
      
       group: Cuproromeite, Fluorcalcioromeite, Fluornatroromeite, Hydroxycalcioromeite, Oxycalcioromeite, Oxyplumboromeite, Stibiconite
      Stibiconite
      Stibiconite is an antimony oxide mineral with formula: Sb3O6. Its name originates from Greek "stibi" and "konis" , alluding to its composition and habit...
      
      
    • Betafite
      Betafite
      Betafite is a mineral in the pyrochlore group, with the chemical formula 22O6. Betafite typically occurs as a primary mineral in granite pegmatites, rarely in carbonatites...
      
       group: Calciobetafite, Oxyuranobetafite
    • Elsmoreite group: Hydrokenoelsmoreite
    • 25 Rosiaite; 30 Zirconolite-3O, 30 Zirconolite-3T, 30 Zirconolite-2M, 30 Zirconolite
      Zirconolite
      Zirconolite is a mineral, calcium zirconium titanate; formula CaZrTi2O7. Some examples of the mineral may also contain thorium, uranium, cerium, niobium and iron; the presence of thorium and/or  uranium would make the mineral radioactive....
      
      ; 35 Liandratite, 35 Petscheckite; 40 Ingersonite, 45 Pittongite
    • Discredited minerals 04.DH.15: Bariomicrolite (of Hogarth 1977), Bariopyrochlore (of Hogarth 1977), Betafite (of Hogarth 1977), Bismutomicrolite (of Hogarth 1977), Ceriopyrochlore (of Hogarth 1977), Jixianite, Natrobistantite, Plumbomicrolite (of Hogarth 1977), Plumbobetafite (of Hogarth 1977), Stannomicrolite (of Hogarth 1977), Stibiobetafite (of Černý et al.), Yttrobetafite (of Hogarth 1977), Yttropyrochlore (of Hogarth 1977), Bismutopyrochlore (of Chukanov et al.) and Bismutostibiconite 04.DH.20
  • 04.DJ With large (± medium-sized) cations; polyhedral frameworks: 05 Calciotantite, 05 Irtyshite, 05 Natrotantite
  • 04.DK With large (± medium-sized) cations; tunnel structures: 05 Ankangite, 05 Coronadite, 05 Hollandite, 05 Manjiroite, 05 Mannardite, 05 Redledgeite, 05 Priderite, 05 Henrymeyerite, 05 Akaganeite
    Akaganéite
    Akaganéite is an iron oxide-hydroxide / chloride mineral with formula: Fe3+O e.g; β-FeO. It is formed by the weathering of pyrrhotite . Nickel also has been reported in the structure. It has a monoclinic crystal structure, a metallic luster and a brownish yellow streak. It is named after the...
    
    , 10 Cryptomelane, 10 Romanechite
    Romanèchite
    Romanèchite is the primary constituent of psilomelane, which is a mixture of minerals. Most psilomelane is not pure romanechite, so it is incorrect to consider them synonyms. Romanèchite is a valuable ore of manganese, which is used in steelmaking. It has a monoclinic crystal structure, a hardness...
    
    , 10 Strontiomelane, 10 Todorokite
    Todorokite
    Todorokite is a rare complex hydrous manganese oxide mineral with formula 2Mn3O12·3H2O. It is a brown to black monoclinic mineral which occurs in massive or tuberose forms. It is quite soft with a Mohs hardness of 1.5, and has a specific gravity of 3.49 - 3.82.It was discovered in 1934 in...
    
    
  • 04.DL With large (± medium-sized) cations; fluorite-type structures: 05 Cerianite-(Ce), 05 Zirkelite
    Zirkelite
    Zirkelite is an oxide mineral with formula: Zr2O7. It occurs as well-formed fine sized isometric crystals. It is a black, brown or yellow mineral with a hardness of 5.5 and a specific gravity of 4.7.-Name and discovery:...
    
    , 05 Thorianite
    Thorianite
    Thorianite is a rare mineral, originally discovered by Ananda Coomaraswamy in 1904 as uraninite, but recognized as a new species by Wyndham R. Dunstan. It was so named on account of its high percentage of thorium ; it also contains the oxides of uranium, lanthanum, cerium and didymium...
    
    , 05 Uraninite
    Uraninite
    Uraninite is a radioactive, uranium-rich mineral and ore with a chemical composition that is largely UO2, but also contains UO3 and oxides of lead, thorium, and rare earth elements...
    
    ; 10 Calzirtite, 10 Hiarneite, 10 Tazheranite
  • 04.DM With large (± medium-sized) cations; unclassified: 05 Sosedkoite, 05 Rankamaite; 15 Cesplumtantite, 20 Eyselite, 25 Kuranakhite
• 04.E Metal:Oxygen = < 1:2
  • 04.E: IMA2008-040
  • 04.EA Oxides with metal : oxygen < 1:2 (M₂O₅, MO₃): 05 Tantite
    Tantite
    Tantite is a rare tantalum oxide mineral with formula: Ta2O5. Tantite forms transparent microscopic colorless triclinic - pedial crystals with an adamantine luster. It has a Mohs hardness of 7 and a high specific gravity of 8.45. Chemical analyses show minor inclusion of niobium oxide.It was first...
    
    , 10 Krasnogorite*, 10 Molybdite
• 04.X Unclassified Strunz Oxides
  • 04.XX Unknown: 00 Allendeite, 00 Ashanite?, 00 Hongquiite*, 00 Psilomelane
    Psilomelane
    Psilomelane, also known as black hematite, is a group name for hard black manganese oxides such as hollandite and romanechite. Psilomelane consists of hydrous manganese oxide with variable amounts of barium and potassium.-Formula:...
    
    ?, 00 Uhligite?, 00 Clinobirnessite*, 00 Kleberite*, 00 Chubutite*, 00 Struverite?, 00 IMA2000-016, 00 IMA2000-026

Class: hydroxides

• 04.F Hydroxides (without V or U)
  • 04.FA Hydroxides with OH, without H₂O; corner-sharing tetrahedra: 05a Behoite, 05b Clinobehoite; 10 Sweetite
    Sweetite
    Sweetite has a general formula of Zn2. The name is given after a curator of mineral department of The British Museum, Jessie May Sweet...
    
    , 10 Wulfingite, 10 Ashoverite
    Ashoverite
    Ashoverite is one of three polymorphs of zinc hydroxide, Zn2. It is a rare mineral first found in a limestone quarry near Ashover, Derbyshire, England, in 1988. It has also been found in the Harz mountain range in Germany, and in Namibia....
    
    
  • 04.FB Hydroxides with OH, without H₂O; insular octahedra: 05 Shakhovite; 10 Cualstibite, 10 Zincalstibite
  • 04.FC Hydroxides with OH, without H₂O; corner-sharing octahedra: 05 Dzhalindite
    Dzhalindite
    Dzhalindite is an extremely rare indium hydroxide mineral, found in Siberia. Its chemical formula is In3.It was first described in 1963 for an occurrence in the Dzhalinda tin deposit, Malyi Khingan Range, Khabarovskiy Kray, Far-Eastern Region, Russia....
    
    , 05 Sohngeite, 05 Bernalite; 10 Burtite, 10 Mushistonite, 10 Natanite, 10 Vismirnovite, 10 Schoenfliesite, 10 Wickmanite; 15 Jeanbandyite, 15 Mopungite, 15 Stottite; 15 Tetrawickmanite; 20 Ferronigerite-6N6S, 20 Ferronigerite-2N1S, 20 Magnesionigerite-6N6S, 20 Magnesionigerite-2N1S; 25 Magnesiotaaffeite-6N3S, 25 Magnesiotaaffeite-2N2S
    Taaffeite
    Taaffeite is a mineral named after its discoverer, Count Edward Charles Richard Taaffe who found the first cut and polished gem in November 1945. As such, it is the only gemstone to have been initially identified from a faceted stone. Most pieces of the gem, prior to Taaffe, had been...
    
    , 25 Ferrotaaffeite-6N3S
  • 04.FD Hydroxides with OH, without H₂O; chains of edge-sharing octahedra: 05 Spertiniite; 10 Bracewellite, 10 Diaspore
    Diaspore
    Diaspore is a native aluminium oxide hydroxide, α-AlO, crystallizing in the orthorhombic system and isomorphous with goethite. It occurs sometimes as flattened crystals, but usually as lamellar or scaly masses, the flattened surface being a direction of perfect cleavage on which the lustre is...
    
    , 10 Guyanaite, 10 Groutite, 10 Goethite
    Goethite
    Goethite , named after the German polymath Johann Wolfgang von Goethe, is an iron bearing oxide mineral found in soil and other low-temperature environments. Goethite has been well known since prehistoric times for its use as a pigment. Evidence has been found of its use in paint pigment samples...
    
    , 10 Montroseite, 10 Tsumgallite; 15 Manganitev; 20 Cerotungstite-(Ce), 20 Yttrotungstite-(Y), 20 Yttrotungstite-(Ce); 25 Frankhawthorneite
    Frankhawthorneite
    Frankhawthorneite Cu2Te6+O4 2 is a monoclinic copper tellurate mineral named after Prof. Frank Christopher Hawthorne, University of Manitoba, Winnipeg, Canada. It was discovered at Centennial Eureka Mine, Tintic District, East Tintic Mountains, Juab County, Utah, in 1995. It has a leaf green...
    
    ; 30 Khinite, 30 Parakhinite
  • 04.FE Hydroxides with OH, without H₂O; sheets of edge-sharing octahedra: 05 Amakinite, 05 Brucite
    Brucite
    Brucite is the mineral form of magnesium hydroxide, with the chemical formula Mg2. It is a common alteration product of periclase in marble; a low-temperature hydrothermal vein mineral in metamorphosed limestones and chlorite schists; and formed during serpentinization of dunites...
    
    , 05 Portlandite
    Portlandite
    Portlandite is a rare oxide mineral, the naturally occurring form of calcium hydroxide . It is the calcium analogue of brucite .-Occurrence:...
    
    , 05 Pyrochroite, 05 Theophrastite, 05 Fougerite
    Fougerite
    Fougerite is a recently discovered representative of clay minerals, chemically and structurally related to so-called green rust, hydrotalcite-like minerals and other layered double hydroxides. The formula of the mineral is complex due to structural variabilities, as is for green rust, thus...
    
    ; 10 Bayerite, 10 Doyleite, 10 Gibbsite
    Gibbsite
    Gibbsite, Al3, is one of the mineral forms of aluminium hydroxide. It is often designated as γ-Al3 . It is also sometimes called hydrargillite ....
    
    , 10 Nordstrandite; 15 Boehmite
    Boehmite
    Boehmite or Böhmite is an aluminium oxide hydroxide mineral, a component of the aluminium ore bauxite. It is dimorphous with diaspore. It crystallizes in the orthorhombic dipyramidal system and is typically massive in habit. It is white with tints of yellow, green, brown or red due to impurities...
    
    , 15 Lepidocrocite
    Lepidocrocite
    Lepidocrocite , also called esmeraldite or hydrohematite, is an iron oxide-hydroxide mineral. Lepidocrocite has an orthorhombic crystal structure, a hardness of 5, specific gravity of 4, a submetallic luster and a yellow-brown streak. It is red to reddish brown and forms when iron-containing...
    
    ; 20 Grimaldiite, 20 Heterogenite-2H, 20 Heterogenite-3R; 25 Feitknechtite, 25 Lithiophorite; 30 Quenselite, 35 Ferrihydrite
    Ferrihydrite
    Ferrihydrite is a widespread hydrous ferric oxyhydroxide mineral at the Earth's surface, and a likely constituent in extraterrestrial materials. It forms in several types of environments, from freshwater to marine systems, aquifers to hydrothermal hot springs and scales, soils, and areas affected...
    
    ; 40 Feroxyhyte
    Feroxyhyte
    Feroxyhyte is an oxide/hydroxide of iron, δ-Fe3+O. Feroxyhyte crystallizes in the hexagonal system. It forms as brown rounded to concretionary masses. Feroxyhyte is opaque, magnetic, has a yellow streak, and has a relative density of 4.2....
    
    , 40 Vernadite; 45 Quetzalcoatlite
  • 04.FF Hydroxides with OH, without H₂O; various polyhedra: 05 Hydroromarchite
  • 04.FG Hydroxides with OH, without H₂O; unclassified: 05 Janggunite, 10 Cesarolite, 15 Kimrobinsonite
  • 04.FH Hydroxides with H₂O ± (OH); insular octahedra: 05 Bottinoite, 05 Brandholzite
  • 04.FJ Hydroxides with H₂O ± (OH); corner-sharing octahedra: 05 Sidwillite, 05 Meymacite; 10 Tungstite
    Tungstite
    Tungstite is a hydrous tungsten oxide mineral with formula: WO3·H2O. It is a secondary mineral formed by the weathering of other tungsten containing minerals. It crystallizes in the orthorhombic system in translucent yellow to yellow green masses...
    
    ; 15 Ilsemannite, 15 Hydrotungstite; 20 Parabariomicrolite
  • 04.FK Hydroxides with H₂O ± (OH); chains of edge-sharing octahedra: 05 Bamfordite
  • 04.FL Hydroxides with H₂O ± (OH); sheets of edge-sharing octahedra: 05 Meixnerite, 05 Jamborite, 05 Iowaite, 05 Woodallite, 05 Akdalaite
    Akdalaite
    Akdalaite is a very rare mineral found in Kazakhstan and has the formula 5Al2O3·H2O. It was formerly believed to be 4Al2O3·H2O. It is therefore the same as tohdite an artificailly produced phase. Studies on the crystal structure and spectra indicate that this is an aluminium oxide hydroxide.-...
    
    , 05 Muskoxite; 10 Hydrocalumite, 15 Kuzelite; 20 Aurorite, 20 Chalcophanite, 20 Ernienickelite, 20 Jianshuiite; 25 Woodruffite, 30 Asbolane; 40 Takanelite, 40 Rancieite; 45 Birnessite
    Birnessite
    Birnessite 2O4 · 1.5 H2O is an oxide mineral of manganese along with calcium, potassium and sodium. It has a dark brown to black color with a submetallic luster. It is also very soft, with a Mohs hardness of 1.5...
    
    , 55 Cianciulliite, 60 Jensenite, 65 Leisingite, 75 Cafetite
    Cafetite
    Cafetite is a rare titanium oxide mineral with formula 2Ti4O12·4).It was first described in 1959 for an occurrence in the Afrikanda Massif, Afrikanda, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...
    
    , 80 Mourite, 85 Deloryite
  • 04.FM Hydroxides with H₂O ± (OH); Unclassified: 15 Franconite, 15 Hochelagaite, 15 Ternovite; 25 Belyankinite, 25 Gerasimovskite, 25 Manganbelyankinite; 30 Silhydrite, 35 Cuzticite, 40 Cyanophyllite
  • 04.FN: 05 Menezesite
• 04.G Uranyl Hydroxides
  • 04.GA Without additional cations: IMA2008-022; 05 Metaschoepite, 05 Paraschoepite, 05 Schoepite
    Schoepite
    Schoepite, empirical formula 8O12•12 is a rare alteration product of uraninite in hydrothermal uranium deposits. It may also form directly from ianthinite. The mineral presents as a transparent to translucent yellow, lemon yellow, brownish yellow, or amber orthorhombic tabular crystals...
    
    ; 10 Ianthinite; 15 Metastudtite, 15 Studtite
    Studtite
    Studtite, chemical formula [O22]·2 or UO4·4, is a secondary uranium mineral containing peroxide formed by the alpha-radiolysis of water during formation...
    
    
  • 04.GB With additional cations (K, Ca, Ba, Pb, etc.); with mainly UO₂(O,OH)₅ pentagonal polyhedra: 05 Compreignacite, 05 Agrinierite
    Agrinierite
    Agrinierite is a mineral often found in the oxidation zone of uranium deposits. It is named for Henry Agrinier, an engineer for the Commissariat à l'Énergie Atomique.- External links :* from mindat.org* from...
    
    , 05 Rameauite; 10 Billietite, 10 Becquerelite, 10 Protasite; 15 Richetite; 20 Calciouranoite, 20 Bauranoite, 20 Metacalciouranoite; 25 Fourmarierite, 30 Wolsendorfite, 35 Masuyite
    Masuyite
    Masuyite is a uranium/lead oxide mineral with formula Pb[3O32]·3H2O.Masuyite was first described in 1947 for an occurrence in Katanga and named to honor Belgian geologist Gustave Masuy ....
    
    ; 40 Metavandendriesscheite, 40 Vandendriesscheite; 45 Vandenbrandeite, 50 Sayrite, 55 Curite
    Curite
    Curite is a lead uranium oxide mineral with formula: Pb38O86·3. It is named after the French physicist Pierre Curie, who is known for his work on radioactivity....
    
    , 60 Iriginite, 65 Uranosphaerite, 70 Holfertite
  • 04.GC With additional cations; with UO₂(O,OH)₆ hexagonal polyhedra: 05 Clarkeite
    Clarkeite
    Clarkeite is a uranium oxide mineral of composition 223 or O·0-1H2O.The color of samples varies from dark brown to reddish orange. Clarkeite forms by oxidation and replacement of uraninite late during pegmatite crystallization...
    
    , 10 Umohoite, 15 Spriggite
• 04.H V^[5,6] Vanadates
  • (moved to -08- Class: vanadates)
• 04.X Unclassified Strunz Oxides (Hydroxides)
  • 04.XX Unknown: 00 Ungursaite*, 00 Scheteligite?