Carpathite
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| Carpathite | |
|---|---|
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|
| General | |
| Category | Organic mineral |
| Chemical formula | C24H12) |
| Identification | |
| Color | Yellow, yellow green, black. |
| Crystal system | Monoclinic - Prismatic |
| Cleavage | Perfect on [001] |
| Fracture | Brittle |
| Mohs Scale hardness | 1.5 |
| Luster | Vitreous - Adamantine |
| Refractive index | nα = 1.760 - 1.780 nβ = 1.780 - 1.982 nγ = 2.050 - 2.150 |
| Optical Properties | Biaxial (+/-) |
| Birefringence | δ = 0.290 - 0.370 |
| Streak | Yellow white |
| Specific gravity | 1.35 |
| Diaphaneity | Transparent |
| Other Characteristics | Fluorescent |
| References | [1][2] |
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.
[edit] References
- ^ http://www.mindat.org/min-2162.html Mindat with location data
- ^ http://www.webmineral.com/data/Karpatite.shtml Webmineral data
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