kratochvílite
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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.
In the Vinony graph
Within Vinony's link graph, kratochvílite is referenced by 6 other articles, and connects out to Czech Republic, mineral and coal.
It sits within the topics Minerals described in 1937 and Organic minerals.
Its subject is documented across 8 Wikipedia language editions.
Wikidata facts
- Subclass of
- organic class of minerals
Show 7 more facts
- chemical formula
- C₁₃H₁₀
- IMA Mineral Symbol
- Ktc
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 10.BA.25
- Strunz 8th edition (series ID, updated)
- IX/B.02
- Nickel-Strunz 9th edition (updated 2009)
- 10.BA.25
- streak color
- white
- crystal system
- orthorhombic crystal system
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Encyclopedic overview
1 sectionsContents
- References
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. It is named after Josef Kratotchvíl, Czech geologist.
Excerpted from Wikipedia’s “kratochvílite” article, available under the CC BY-SA 4.0 licence.