Minerals identify

Know how to recognize them

Geerite

Sulfide mineral

Geerite is a copper with the chemical formula Cu8S5. The mineral is named after the original collector, Adam Geer, of Utica, New York , US.

Identification

Color of mineral

White

Mohs scale ( mineral hardness )

3.5
4

Luster ( interacts light )

Metallic

Crystal ( diaphaneity )

Trigonal