General Information:
Chemical Formula:Ca4B4(BO4)(SiO4)3(OH)3·(H2O)
Empirical Formula: Ca4B4(BO4)(SiO4)3(OH)3·(H2O)
Locality:Corkscrew mine, Corkscrew Canyon, Death Valley, Inyo Co. California.
Physical Properties:
Color:colorless or white.
Density:2.7 - 2.9, Average = 2.8
Diaphaniety:Transparent
Hardness:4.5 - Between Fluorite and Apatite
Luminescence:Non-fluorescent.
Luster:Vitreous (Glassy)
Streak:white
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