Fabianite

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.

Fabianite
General
Category	Phylloborates
Formula	CaB3O5(OH)
IMA symbol	Fbn[1]
Strunz classification	6.FC.20
Crystal system	Monoclinic
Crystal class	Prismatic (2/m) (same H-M symbol)
Space group	P21/a

See also

• Earth sciences portal

• List of minerals