General Information:
Chemical Formula:
Ag7Pb6Bi15S32
Composition:
(Molecular Weight = 6,159.10 gm)
Silver 12.26 % Ag
Bismuth 50.90 % Bi
Lead 20.18 % Pb
Sulfur 16.66 % S
Empirical Formula:
Ag7Pb6Bi15S32
IMA Status:
Approved IMA 1977
Locality:
Treasury mine, Geneva district, Colorado, USA.
Name Origin:
Named for the locality.
Physical Properties:
Color:
black.
Density:
7.25
Diaphaniety:
Opaque
Habits:
Granular - Generally occurs as anhedral to subhedral crystals in matrix., Aggregates - Made of numerous individual crystals or clusters.,
Luster:
Metallic
More details...