Karpatite

Carpathite (also pendletonite and karpatite) is a rare hydrocarbon mineral. It is the mineral form of the polycyclic aromatic hydrocarbon coronene with formula: C24H12. It was first described in 1955 from an occurrence in Transcarpathian Oblast, Ukraine. It has also been reported from the Presov Region of the Slovak Republic and from San Benito County, California.
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General Information:
 Chemical Formula:
C24H12
 Composition:
(Molecular Weight = 300.36 gm)
Hydrogen 4.03 % H 
Carbon 95.97 % C 
 Empirical Formula:
C24H12
 IMA Status:
Accepted IMA 1968
Physical Properties:
 Cleavage:
[001] Perfect
 Color:
yellow, yellow green, or black.
 Density:
1.35
 Diaphaniety:
Transparent
 Hardness:
1.5 - Between Talc and Gypsum
 Luminescence:
Fluorescent.
 Luster:
Vitreous - Adamantine
 Streak:
yellow white
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