Parasibirskite

General Information:
 Chemical Formula:
Ca2B2O5·(H2O)
 Composition:
(Molecular Weight = 199.79 gm)
Calcium 40.12 % Ca
Boron 10.82 % B 
Hydrogen 1.01 % H 
Oxygen 48.05 % O 
 Empirical Formula:
Ca2B2O5·(H2O)
 Environment:
In a vein between gehlenite-spurrite skarns and crystalline limestone. A polymorph of sibirskite.
 IMA Status:
Approved IMA 1996 (Dana # Added)
 Locality:
Fuka, Okayama Prefecture, Japan.
 Name Origin:
For it's relationship to sibirskite.
Physical Properties:
 Cleavage:
[100] Perfect
 Color:
white.
 Density:
2.5
 Diaphaniety:
Transparent
 Habits:
Tabular - Form dimensions are thin in one direction., Microscopic Crystals - Crystals visible only with microscopes.,
 Hardness:
3 - Calcite
 Luster:
Vitreous - Pearly
 Streak:
white
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