General Information:
Chemical Formula:
Pb4(Mn,Fe)Sb6S14
IMA Status:
Approved IMA 1980
Physical Properties:
Cleavage:
None
Color:
lead gray or gray.
Density:
5.6
Diaphaniety:
Opaque
Hardness:
2.5 - Finger Nail
Luster:
Metallic
Streak:
brown gray
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