General Information:
Chemical Formula:
Hg12(Sb,As)8S15
IMA Status:
Approved IMA 1975
Physical Properties:
Cleavage:
[???] Perfect
Color:
lead gray.
Density:
7.38
Diaphaniety:
Translucent to Opaque
Hardness:
3 - Calcite
Luster:
Adamantine
Streak:
reddish black
More details...