Formula: Cu9(Fe,Ni)8S16
Origin of name: after locality Talnakh deposit, Norilsk Siberia, Russia
Crystal system: cubic
Crystal class: -43m
Twinning:
Unit cell:
Colour: brass-yellow, rapidly tarnishes pink and brown, then iridescent
Diaphaneity: opaque
Luster: metallic
Habit: massive
Hardness:
Specific gravity: 4.24
Cleavage: none
Tenacity:
Streak:
Synonyms/varieties:
Comments:
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