General Information:
Chemical Formula:Ag(Sb,Bi)S2
Composition:(Molecular Weight = 315.56 gm)Silver 34.18 %
AgBismuth 16.56 %
BiAntimony 28.94 %
SbSulfur 20.32 %
S Empirical Formula: AgSb0.75Bi0.25S2
Locality:Chocoya, Province of Sud-Chichas, Potosi, Bolivia.
Physical Properties: Cleavage:[???] Perfect, [???] Indistinct, [???] Indistinct
Color:iron black or deep blood red.
Density:5.6
Diaphaniety:Opaque
Habits:Pseudo Tetragonal - Crystals show a tetragonal shape., ,
Hardness:2.5 - Finger Nail
Luster:Metallic
Streak:black
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