Tags: Chemical Substance, Mineral.
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.
