Kratochvílite
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(Redirected from Kratochvilite)
| Kratochvílite | |
|---|---|
| General | |
| Category | Organic mineral |
| Formula (repeating unit) |
C14H10 |
| Strunz classification | 10.BA.25 |
| Identification | |
| Color | White |
| Crystal system | Orthorhombic - pyramidal |
| Streak | White |
| References | [1][2] |
Kratochvilite is a rare organic mineral formed by combustion of coal or pyritic black shale deposits. It is a hydrocarbon with the formula of either C14H10 or (C6H4)2CH2. It is a polymorph of the aromatic hydrocarbon fluorene. It forms white, yellow to brown crystals in the orthorhombic system which occur often as a druzey encrustation. It has a specific gravity of 1.21 and a Mohs hardness of 1 to 2.
It was first described from the Nejedly mine in Bohemia, Czech Republic in 1937.
References
External links
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