General Information:
Chemical Formula:
Au4Cu(Te,Pb)
Composition:
(Molecular Weight = 1,002.89 gm)
Copper 6.34 % Cu
Tellurium 8.91 % Te
Lead 6.20 % Pb
Gold 78.56 % Au
Empirical Formula:
Au4CuTe0.7Pb0.3
IMA Status:
Approved IMA 1978
Locality:
Kamchatka, Russia.
Name Origin:
Named ro Marianna S. Bezsmertnaya (1915-1991) and Valdimir V. Bezsmertny (1912-), Russian geologists.
Physical Properties:
Cleavage:
None
Color:
bronze or golden yellow.
Density:
16.3
Diaphaniety:
Opaque
Habits:
Microscopic Crystals - Crystals visible only with microscopes., ,
Hardness:
4.5 - Between Fluorite and Apatite
Luster:
Metallic
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