General Information:
Chemical Formula:
Pb9As4S15
Composition:
(Molecular Weight = 2,645.48 gm)
Arsenic 11.33 % As
Lead 70.49 % Pb
Sulfur 18.18 % S
Empirical Formula:
Pb9As4S15
Physical Properties:
Cleavage:
None
Color:
lead gray or dark lead gray.
Density:
6.22
Diaphaniety:
Opaque
Hardness:
2.5 - Finger Nail
Luster:
Metallic
Streak:
black
More details...