General Information:
Chemical Formula:
(Pb,Tl)3As5S10
Locality:
Binnental, Switzerlan.
Physical Properties:
Cleavage:
[010] Distinct
Color:
lead gray.
Density:
5.41
Diaphaniety:
Opaque
Habits:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., ,
Hardness:
3 - Calcite
Luster:
Metallic
Streak:
dark brown
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