General Information:
Chemical Formula:
Ag7Pb10Bi15S36
Composition:
(Molecular Weight = 7,116.16 gm)
Silver 10.61 % Ag
Bismuth 44.05 % Bi
Lead 29.12 % Pb
Sulfur 16.22 % S
Empirical Formula:
Ag7Pb10Bi15S36
IMA Status:
Approved IMA 1977
Locality:
Ivigutut, Greenland.
Name Origin:
Named for the Eskimos, the natives of Greenland.
Physical Properties:
Color:
black or gray.
Density:
7.1
Diaphaniety:
Opaque
Habits:
Lamellar - Thin laminae producing a lamellar structure., Granular - Generally occurs as anhedral to subhedral crystals in matrix.,
Hardness:
4 - Fluorite
Luster:
Metallic
More details...