Malachite after Azurite

The Milpillas has fast become legendary for its incredible azurites as well as the pseudomorphs to malachite and the host of other minerals including volborthite, barite, mimetite, brochantite, cuprite and many others. The levels bearing the azurites and malachites were depleted several years ago. This specimen has some brecia cemented together with velvety chatoyant crystals to 1.5cm. An excellent example.

Locality: Milpillas Mine, Municipio de Santa Cruz, Sonora, Mexico

Composition: copper carbonate