Minerals identify

Know how to recognize them

Krennerite

Telluride mineral

Krennerite is an orthorhombic gold mineral in the structure. The formula is AuTe2, but specimen with gold substituted by up to 24% with silver Both of the chemically similar gold-silver tellurides, calaverite , are in the monoclinic crystal system, whereas krennerite is orthorhombic.

The color varies from silver-white to brass-yellow. It has a specific gravity of 2.5. It occurs in high temperature, hydrothermal environments.

Krennerite was discovered in 1878 near the village of Săcărâmb, and first described by the Hungarian Joseph Krenner

Identification

Color of mineral

Yellow
Silver
White

Mohs scale ( mineral hardness )

2.5

The streak

Grey
Green

Luster ( interacts light )

Metallic

Crystal ( diaphaneity )

Orthorhombic