Abelsonite
Encyclopedia
Abelsonite is an organic porphyrin
Porphyrin
Porphyrins are a group of organic compounds, many naturally occurring. One of the best-known porphyrins is heme, the pigment in red blood cells; heme is a cofactor of the protein hemoglobin. Porphyrins are heterocyclic macrocycles composed of four modified pyrrole subunits interconnected at...

 mineral first described in 1975 for specimens in oil shale
Oil shale
Oil shale, an organic-rich fine-grained sedimentary rock, contains significant amounts of kerogen from which liquid hydrocarbons called shale oil can be produced...

 from the Green River Formation
Green River Formation
The Green River Formation is an Eocene geologic formation that records the sedimentation in a group of intermountain lakes. The sediments are deposited in very fine layers, a dark layer during the growing season and a light-hue inorganic layer in winter. Each pair of layers is called a varve and...

 in eastern Uintah County, Utah
Uintah County, Utah
This page deals with the Utah County. For the Wyoming County, see Uinta County, Wyoming.Uintah County is a county located in the U.S. state of Utah. As of 2000 the population was 25,224 and by 2009 was estimated at 31,536. It was named for the Ute Indians, the tribe that lives in the basin. Its...

. It is named after Philip Hauge Abelson, an American
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 physicist
Physicist
A physicist is a scientist who studies or practices physics. Physicists study a wide range of physical phenomena in many branches of physics spanning all length scales: from sub-atomic particles of which all ordinary matter is made to the behavior of the material Universe as a whole...

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