General Information:
Chemical Formula:
(Ag,Cu)(Bi,Pb)3S5
Composition:
(Molecular Weight = 882.72 gm)
Copper 1.80 % Cu
Silver 9.16 % Ag
Bismuth 53.27 % Bi
Lead 17.60 % Pb
Sulfur 18.16 % S
Empirical Formula:
Ag0.75Cu0.25Bi2.25Pb0.75S5
Physical Properties:
Cleavage:
[???] Indistinct
Color:
lead gray or tin white.
Density:
6.54
Diaphaniety:
Opaque
Hardness:
2 - Gypsum
Luster:
Metallic
Streak:
lead gray
More details...