General Information:
Chemical Formula:AgPb3MnSb5S12
Composition:(Molecular Weight = 1,777.95 gm)Manganese 3.09 %
MnSilver 6.07 %
AgAntimony 34.24 %
SbLead 34.96 %
PbSulfur 21.64 %
S Empirical Formula: AgPb3Mn3+Sb5S12
IMA Status:Approved IMA 1981
Locality:Uchuc-Chacua deposit, Cajatambo Province, Peru.
Name Origin:Named for the locality.
Physical Properties: Color:lead gray.
Density:5.16
Diaphaniety:Opaque
Habits:Anhedral Grains - Granular minerals without the expression of crystal shapes, ,
Hardness:3.5 - Copper Penny
Luster:Metallic
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