Heterogenite

Formula: Co3+O(OH)

Species: Oxides

Lustre: Vitreous, Dull

Hardness: 3 – 5

Specific Gravity: 4.13 – 4.47

Crystal System: Hexagonal

Name: From the Greek for “of another kind”, as the mineral differs in composition from similar minerals.

Type Locality: Wolfgang Maaßen mines, Schneeberg, Erzgebirgskreis, Saxony – Germany