General Information:
Chemical Formula:
Pb(Bi,Sb)6S10
Locality:
Ustarasaisk deposit, western Tian-Shan, Kazakhstan.
Name Origin:
Named for the locality.
Physical Properties:
Cleavage:
[???] Perfect
Color:
gray or silver gray.
Diaphaniety:
Opaque
Habits:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., ,
Hardness:
2.5 - Finger Nail
Luster:
Metallic
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