Olshanskyite

General Information:
 Chemical Formula:
Ca3(OH)2[B(OH)4]4
 Composition:
(Molecular Weight = 503.62 gm)
Calcium 23.87 % Ca
Boron 8.59 % B 
Hydrogen 4.00 % H 
Oxygen 63.54 % O 
 Empirical Formula:
Ca3B4(OH)20
 Environment:
Skarn.
 IMA Status:
Approved IMA 1969
 Locality:
Eastern Siberia, Russia.
 Name Origin:
Named for Yakov I. Olshansky (1912-1958), Russian geochemist.
Physical Properties:
 Color:
colorless, white, or light brown.
 Density:
2.23
 Diaphaniety:
Transparent
 Habits:
Fibrous - Crystals made up of fibers., Aggregates - Made of numerous individual crystals or clusters., Microscopic Crystals - Crystals visible only with microscopes.
 Hardness:
4 - Fluorite
 Luster:
Vitreous (Glassy)
 Streak:
white
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