General Information:
Chemical Formula:
Na0,3(Mg,Li)3Si4O10(F,OH)2
Locality:
Company No. 1 mine, 3 miles south of Hector, San Bernardino Co., California.
Name Origin:
Named after it's locality.
Physical Properties:
Cleavage:
[001] Perfect
Color:
white.
Density:
2 - 3, Average = 2.5
Diaphaniety:
Translucent to Opaque
Hardness:
1-2 - Between Talc and Gypsum
Luminescence:
Fluorescent.
Luster:
Earthy (Dull)
Streak:
white
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