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.

Kratochvílite Market Value Calculator

Estimate the market value of Kratochvílite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

Preview only. Full pricing comps and valuation report in the app.

Kratochvílite Localities Map

See where Kratochvílite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview
North ZoneCentral RidgeSouth Basin

Interactive map layers and collecting notes are available in the app.

Quick Facts

Physical Properties

Density
1.197 g/cm³

Chemical Properties

Chemical Formula
C13H10
Elements
C, H

Also Known As

KratochvíliteFluorene
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