General Information:
Chemical Formula:
Pb9(Cu,Fe)Bi12S28
Physical Properties:
Cleavage:
[???] Good
Color:
white gray or tin white.
Density:
6.85
Diaphaniety:
Opaque
Hardness:
3-3.5 - Calcite-Copper Penny
Luster:
Metallic
Streak:
lead gray
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