General Information:
Chemical Formula:
(Cs,Na)2Al2Si4O12·(H2O)
Environment:
Granitic pegmatites.
IMA Status:
Approved IMA
Locality:
Elba, Italy
Name Origin:
Named after Pollux, a figure from Greek mythology.
Physical Properties:
Cleavage:
None
Color:
colorless, white, gray, pale pink, or blue.
Density:
2.9
Diaphaniety:
Transparent
Habits:
Massive - Uniformly indistinguishable crystals forming large masses., ,
Hardness:
6.5 - Pyrite
Luminescence:
None.
Luster:
Vitreous - Dull
Streak:
white
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