General Information:
Chemical Formula:
PbTe
Composition:
(Molecular Weight = 334.80 gm)
Tellurium 38.11 % Te
Lead 61.89 % Pb
Empirical Formula:
PbTe
Locality:
TL: Ziryanovsk in the Altai Mountains, Siberia.
Name Origin:
Named after its locality.
Physical Properties:
Cleavage:
[001] Perfect, [010] Perfect, [100] Perfect
Color:
tin white, yellowish tin white, or bronze yellow.
Density:
8.1 - 8.2, Average = 8.14
Diaphaniety:
Opaque
Habits:
Euhedral Crystals - Occurs as well-formed crystals showing good external form., Massive - Granular - Common texture observed in granite and other igneous rock.,
Hardness:
2.5 - Finger Nail
Luminescence:
None.
Luster:
Metallic
Streak:
black
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