Tourmaline : CSIRO Spectroscopy Database

Tourmaline [ A(D₃)G₆(Si₆O₁₈)(BO₃)₃X₃Z ]

Images of Tourmaline

Crystal of schorl (tourmaline) with muscovite, from granite quarry, 10 km south-south-west of Lake Boga, Victoria, Australia. Specimen M 30758, Museums Victoria

Photo by Frank Coffa, Copyright Museums Victoria / CC BY (Licensed as Attribution 4.0 International)

Image of a specimen of tourmaline from Minas Gerais, Brazil. Size: 6cm

Photo (C) 2003 James O. Hamblen (http://hamblen.ece.gatech.edu/uvminerals/). Reproduced with permission.

Shortwave UV photoluminescence image of a specimen of tourmaline from Minas Gerais, Brazil. Size: 6cm

Photo (C) 2003 James O. Hamblen (http://hamblen.ece.gatech.edu/uvminerals/). Reproduced with permission.

Image of a specimen of Tourmaline from Minas Gerais, Brazil. Size: 6cm

Photo (C) 2003 James O. Hamblen (http://hamblen.ece.gatech.edu/uvminerals/). Reproduced with permission.

Shortwave UV photoluminescence image of a specimen of tourmaline from Minas Gerais, Brazil. Size: 6cm

Photo (C) 2003 James O. Hamblen (http://hamblen.ece.gatech.edu/uvminerals/). Reproduced with permission.

Material properties

Formula	A(D₃)G₆(Si₆O₁₈)(BO₃)₃X₃Z
Abbreviation	Tur
Variants	pink, green
Members	Uvite, Bosiite, Oxy-dravite, Fluor-buergerite, Maruyamaite, Fluor-tsilaisite, Alumino-oxy-rossmanite, Fluor-dravite, Chromium-dravite, Princivalleite, Chromo-alumino-povondraite, Dutrowite, Fluor-schorl, Fluor-uvite, Oxy-foitite, Rossmanite, Fluor-liddicoatite, Tsilaisite, Magnesio-foitite, Magnesio-lucchesiite, Povondraite, Foitite, Darrellhenryite, Schorl, Adachiite, Fluor-elbaite, Dravite-Schorl (series), Lucchesiite, Elbaite, Oxy-chromium-dravite, Feruvite, Vanadio-oxy-chromium-dravite, Dravite, Olenite, Oxy-schorl, Oxy-vanadium-dravite, Vanadio-oxy-dravite, Celleriite
Luminescence emitters	Al centres, B-O, BO3, Fe, Mn, M[n]OH, OH, Si[I] centre, Si[II] centre, Unspecified
IMA Status	Approved group
Search other databases	webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Crystal symmetry	Trigonal
Tags	Group , Silicate, Borate

Composition

☐, H, Mg, Ca, Mn, Fe, Si, O, F, V, Al, Li, Na, K, Ti, Cr, Pb, B

References for Tourmaline

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Kuznetsov and Tarashchan 1988

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Laukamp et al. 2021

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Tarashchan 1978

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Specimens of Tourmaline

Name	Owner	Materials	Image
Tourmaline (Brazil)	Hamblen, Prof James O., Georgia Tech	Tourmaline	Tourmaline (Brazil) Image of a specimen of Tourmaline from Minas Gerais, Brazil. Size: 6cm Photo (C) 2003 James O. Hamblen (http://hamblen.ece.gatech.edu/uvminerals/). Reproduced with permission.