Fabianite

Fabianite is a mineral with the chemical formula CaB3O5(OH). It is colorless and leaves a white streak. Its crystals are monoclinic to prismatic. It is transparent and fluorescent. It has vitreous luster. It is not radioactive. Fabianite is rated 6 on the Mohs Scale.
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General Information:
 Chemical Formula:
CaB3O5(OH)
 Composition:
(Molecular Weight = 169.51 gm)
Calcium 23.64 % Ca
Boron 19.13 % B 
Hydrogen 0.59 % H 
Oxygen 56.63 % O 
 Empirical Formula:
CaB3O5(OH)
 IMA Status:
Approved IMA 1962
Physical Properties:
 Cleavage:
[011] Indistinct
 Color:
colorless.
 Density:
2.77
 Diaphaniety:
Transparent
 Hardness:
6 - Orthoclase
 Luminescence:
Fluorescent.
 Luster:
Vitreous (Glassy)
 Streak:
white
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