Demesmaekerite

demesmaekerite

cuprosklodowskite

kasolite

derriksite

Images

Formula: Pb2Cu5(UO2)2(Se4+O3)6(OH)6(H2O)2
Selenite
Specific gravity: 5.28
Hardness: 3 to 4
Colour: Bottle-green when fresh, turning somewhat brownish on dehydration
RADIOACTIVE
Environments

Hydrothermal environments

Localities

At the type locality, the Musonoi Mine, Kolwezi, Kolwezi mining district, Lualaba, DR Congo, demesmaekerite occurs rarely in the lower oxidised portions of a selenium-bearing coppercobalt deposit, associated with cuprosklodowskite, kasolite, guilleminite, derriksite, chalcomenite, malachite and selenian digenite (AM 51.1815-1816).

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