General Information:
Chemical Formula:
Pb9As13S28
Composition:
(Molecular Weight = 3,736.63 gm)
Arsenic 26.07 % As
Lead 49.91 % Pb
Sulfur 24.03 % S
Empirical Formula:
Pb9As13S28
Physical Properties:
Cleavage:
None
Color:
lead gray.
Density:
5.3
Diaphaniety:
Opaque
Hardness:
3 - Calcite
Luster:
Metallic
Streak:
dark brown
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