Fabianite

Fabianite
Fabianite
General
Category	Phylloborates
Formula; (repeating unit)	CaB3O5(OH)
IMA symbol	Fbn
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.

References

^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.

Webmineral Entry
Mineral Handbook
J. A. Konnert; J. R. Clark; C. L. Christ (1970). "Crystal structure of fabianite, CaB30S(OH), and comparison with the structure of its synthetic dimorph" (PDF). Zeitschrift für Kristallographie. 132 (1–6): 241–254. Bibcode:1970ZK....132..241K. doi:10.1524/zkri.1970.132.1-6.241.
Richard C. Erd; G. Donald Eberlein; C. L. Christ (1969). "Fabianite and its synthetic dimorph, CaB 3 O 5 (OH); new data". The Canadian Mineralogist. 10 (1): 108–112.

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[1] Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.

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See also

References