Abelsonite

Abelsonite is a mineral of nickel, carbon, hydrogen, and nitrogen with formula: Ni[C32H36N4]. It forms purple to reddish brown triclinic crystals. The crystals are soft, with a Mohs scale rating is 2 to 3. It has a low specific gravity of 1.45. It was first described in 1975 for specimens in oil shale from the Green River Formation, eastern Uintah County, Utah. It is named after Philip Hauge Abelson, an American physicist.
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General Information:
 Chemical Formula:
Ni++C31H32N4
 Composition:
(Molecular Weight = 519.31 gm)
Nickel 11.30 % Ni
Hydrogen 6.21 % H 
Carbon 71.70 % C 
Nitrogen 10.79 % N 
 Empirical Formula:
NiC31H32N4
 Environment:
Fractures in lacusterine, kerogen-rich shales.
 IMA Status:
Approved IMA 1975
 Locality:
TL: Green River formation, eastern Uintah Co., Utah, USA.
 Name Origin:
Named after Philip H. Abelson, president, the Carnegie Institution, Washington, DC, a pioneer in organic geochemistry.
Physical Properties:
 Cleavage:
[111] Good
 Color:
pinkish red, purple, or reddish brown.
 Density:
1.45
 Diaphaniety:
Translucent
 Habits:
Platy - Sheet forms (e.g. micas)., Aggregates - Made of numerous individual crystals or clusters.,
 Hardness:
2-2.5 - Gypsum-Finger Nail
 Luminescence:
Non-fluorescent.
 Luster:
Sub Metallic
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