General Information:
Chemical Formula:
Pb16Sb18S43
Composition:
(Molecular Weight = 6,885.54 gm)
Antimony 31.83 % Sb
Lead 48.15 % Pb
Sulfur 20.03 % S
Empirical Formula:
Pb16Sb18S43
IMA Status:
Approved IMA 1967
Physical Properties:
Cleavage:
[100] Perfect
Color:
lead gray or black.
Density:
5.8
Diaphaniety:
Opaque
Hardness:
3.5-4 - Copper Penny-Flourite
Luster:
Metallic
Streak:
black
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