General Information:
Chemical Formula:PbCuBiS3
Composition:(Molecular Weight = 575.92 gm)Copper 11.03 %
CuBismuth 36.29 %
BiLead 35.98 %
PbSulfur 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
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