Minerals identify

Know how to recognize them

Krut'aite

Selenide mineral

Krut'aite or krutaite is a rare mineral with the formula Cu 2. It crystallises in the cubic crystal system group, being composed of Cu2+ ions and Se22− ions. The mineral is most often found as a dark grey aggregate consisting of tiny crystals no more than a millimeter in size. The crystals are opaque in any size. It has no industrial use, but it is a prized collector's item.

Identification

Color of mineral

Grey

Mohs scale ( mineral hardness )

4

The streak

Grey

Luster ( interacts light )

Metallic

Crystal ( diaphaneity )

Cubic