General Information:
Chemical Formula:
Pb3(WO4)OCl2
Composition:
(Molecular Weight = 956.35 gm)
Lead 65.00 % Pb
Tungsten 19.22 % W
Chlorine 7.41 % Cl
Oxygen 8.36 % O
Empirical Formula:
Pb3(WO4)OCl2
Environment:
In solution cavites in quartz.
IMA Status:
Approved IMA
Locality:
Mammoth mine, Pinal County, Arizona, USA.
Name Origin:
Named for the locality.
Physical Properties:
Cleavage:
None
Color:
yellow, orangish, or golden yellow.
Diaphaniety:
Transparent
Habits:
Acicular - Occurs as needle-like crystals., Bladed - Aggregates of thin lath-like crystals (e.g. kyanite)., Microscopic Crystals - Crystals visible only with microscopes.
Luminescence:
Non-fluorescent.
Luster:
Adamantine
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