Minerals identify

Know how to recognize them

Tiemannite

Selenide mineral

Tiemannite is a mineral, mercury selenide , formula HgSe. It occurs in hydrothermal associated with other selenides, or other mercury minerals such as cinnabar. Discovered in 1855 in Germany, it is named after Johann Carl Wilhelm Tiemann (1848–1899).

Identification

Color of mineral

Grey
Black

Mohs scale ( mineral hardness )

2.5

The streak

Black

Luster ( interacts light )

Metallic

Crystal ( diaphaneity )

Isometric