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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