Radhakrishnaite

General Information:
 Chemical Formula:
PbTe3(Cl,S)2
 Composition:
(Molecular Weight = 657.52 gm)
Tellurium 58.22 % Te
Lead 31.51 % Pb
Sulfur 4.88 % S 
Chlorine 5.39 % Cl
 Empirical Formula:
PbTe3ClS
 IMA Status:
Approved IMA 1984
 Locality:
Champion Reef mine, Kolar gold fields, Karnataka, India.
 Name Origin:
Named after B. P. Radhakrishna (1018-), Indian mineralogist.
Physical Properties:
 Color:
gray or reddish brown.
 Density:
8.89
 Diaphaniety:
Opaque
 Habits:
Microscopic Crystals - Crystals visible only with microscopes., Aggregates - Made of numerous individual crystals or clusters.,
 Luster:
Metallic
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