Derriksite

A variety of Minerals

Derriksite specimen - rock identification

What is Derriksite?

Derriksite is a very rare uranium mineral with the chemical formula Cu4(UO2)(SeO3)2(OH)6•H2O. It is a secondary mineral that contains copper, uranium and the rarer selenium. It is a bright green to duller bottle green colour. Its crystal habit is acicular, it is most likely to be found along with the uranyl selenium mineral demesmaekerite, but derriksite is much rarer than demesmaekerite. It is named after Jean Marie Francois Joseph Derriks (1912–1992), geologist and administrator of the Union Minière du Haut Katanga (UMHK). It has a Mohs hardness of about 2.

Derriksite Market Value Calculator

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

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Derriksite Localities Map

See where Derriksite 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

Color
clear green
Density
4.61 g/cm³

Chemical Properties

Chemical Formula
Cu4(UO2)(SeO3)2(OH)6 Formula originally assumed to contain 1 water molecule.
Elements
Cu, H, O, Se, U
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