Minerals identify

Know how to recognize them

Derriksite

Oxide mineral

Derriksite is a very rare uranium with the chemical formula Cu4(UO2)(SeO3)2(OH)6•H2O. It is a secondary mineral that contains copper. 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

Identification

Crystal ( diaphaneity )

Orthorhombic

Radioactive

Radioactive