General Information:
Chemical Formula:
PbCuBiS3
Composition:
(Molecular Weight = 575.92 gm)
Copper 11.03 % Cu
Bismuth 36.29 % Bi
Lead 35.98 % Pb
Sulfur 16.70 % S
Empirical Formula:
PbCuBiS3
Locality:
TL: Berezovsk near Ekaterinburg, Ural Mountains.
Physical Properties:
Cleavage:
[010] Indistinct
Color:
lead gray, grayish black, or reddish brown.
Density:
6.1 - 6.8, Average = 6.44
Diaphaniety:
Opaque
Habits:
Acicular - Occurs as needle-like crystals., Massive - Uniformly indistinguishable crystals forming large masses.,
Hardness:
2-2.5 - Gypsum-Finger Nail
Luster:
Metallic
Streak:
grayish black
More details...