Briartite


Composition: Cu2(Fe2+,Zn)GeS4
Crystal System : Tetragonal
Colours: Grey, grey-blue
Lustre : Metallic
Hardness : 3.5-4.5
Specific Gravity : 4.34
References: Gebhard (1999)

Occurrence

  • Hypogene

Notable Finds

Masses of briartite (at the time unidentified) to 5 Kg were found just above 30 Level by Geier in 1955 (Gebhard, 1999).