Kratochvílite
A variety of Minerals
What is Kratochvílite?
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 C13H10 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.
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Kratochvílite Localities Map
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Quick Facts
Physical Properties
- Density
- 1.197 g/cm³
Chemical Properties
- Chemical Formula
- C13H10
- Elements
- C, H
Also Known As

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