General Information:
Chemical Formula:Pb6Bi2S9
Composition:(Molecular Weight = 1,949.75 gm)Bismuth 21.44 %
BiLead 63.76 %
PbSulfur 14.80 %
S Empirical Formula: Pb6Bi2S9
Locality:Ascham Alm, Untersulzbachtal, Austria.
Name Origin:Named for the locality.
Physical Properties: Cleavage:[001] Perfect
Color:lead gray or gray.
Density:7.27
Diaphaniety:Opaque
Habits:Massive - Uniformly indistinguishable crystals forming large masses., Lath - Shaped like a small, thin plaster lath, tabular (rectangular) in shape.,
Hardness:3.5 - Copper Penny
Luminescence:Non-fluorescent.
Luster:Metallic
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