General Information:
Chemical Formula:
Pb3(Ag,Cu)5Bi7S16
Composition:
(Molecular Weight = 3,026.05 gm)
Copper 5.25 % Cu
Silver 8.91 % Ag
Bismuth 48.34 % Bi
Lead 20.54 % Pb
Sulfur 16.95 % S
Empirical Formula:
Pb3Ag2.5Cu2.5Bi7S16
IMA Status:
Approved IMA 1965
Physical Properties:
Cleavage:
[???] Indistinct
Color:
blue gray or gray.
Density:
6.7
Diaphaniety:
Opaque
Hardness:
3.5 - Copper Penny
Luster:
Metallic
More details...