General Information:
Chemical Formula:
Pb4Sn4FeSb2S15
Composition:
(Molecular Weight = 2,083.98 gm)
Iron 2.68 % Fe
Tin 22.79 % Sn
Antimony 11.68 % Sb
Lead 39.77 % Pb
Sulfur 23.08 % S
Empirical Formula:
Pb4Sn4Fe2+Sb2S15
IMA Status:
Approved IMA 1974
Locality:
Poopo, Bolivia.
Name Origin:
Named for the Inca people, pre-European rulers of Chile, Bolivia, and Peru.
Physical Properties:
Cleavage:
[100] Perfect
Color:
lead gray.
Diaphaniety:
Opaque
Habits:
Microscopic Crystals - Crystals visible only with microscopes., ,
Hardness:
2 - Gypsum
Luster:
Metallic
More details...