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