General Information:
Chemical Formula:
AgBiS2
Composition:
(Molecular Weight = 380.98 gm)
Silver 28.31 % Ag
Bismuth 54.85 % Bi
Sulfur 16.83 % S
Empirical Formula:
AgBiS2
IMA Status:
Approved IMA 1967
Locality:
Matilda mine, near Moroccha, Provinence Junin, Peru.
Name Origin:
Named after its locality
Physical Properties:
Cleavage:
None
Color:
gray or iron black.
Density:
6.9
Diaphaniety:
Opaque
Habits:
Acicular - Occurs as needle-like crystals., Massive - Granular - Common texture observed in granite and other igneous rock.,
Hardness:
2.5 - Finger Nail
Luminescence:
Non-fluorescent.
Luster:
Metallic
Streak:
gray
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