Zeunerite is a green copper arsenate mineral Cu(UO2)2(AsO4)2•(10-16)H2O. It is a member of the autunite group. The associated mineral metazeunerite is a dehydration product of zeunerite.
Zeunerite occurs as a secondary mineral in the oxidized weathering uranium ore deposits, mansfieldite and malachite
It was first described in 1872 for an occurrence in the Schneeberg District, Erzgebirge. It was named for Gustav Anton Zeuner