General Information:
Chemical Formula:(Cs,Tl)(Hg,Cu,Zn)6(As,Sb)4S12
IMA Status:Approved IMA 1972
Physical Properties:
Color:orange red, reddish, or black.
Density:5.4
Diaphaniety:Opaque
Hardness:3 - Calcite
Luster:Vitreous - Adamantine
Streak:orange
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