Fabianite

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Fabianite
General
Category Phylloborates
Formula
(repeating unit)
CaB3O5(OH)
Strunz classification 6.FC.20
Crystal system Monoclinic
Crystal class Prismatic (2/m)
(same H-M symbol)
Space group P21/a

Fabianite is a borate mineral with the chemical formula CaB3O5(OH). It is colorless and leaves a white streak. Its crystals are monoclinic prismatic. It is transparent and fluorescent. It has vitreous luster. It is not radioactive. Fabianite is rated 6 on the Mohs Scale. It was named for Hans-Joachim Fabian, a German geologist.

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