Rathite

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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