 | Novák, M., Ertl, A., Povondra, P., Galiová, M. V., Rossman, G. R., Pristacz, H., Prem, M., Giester, G., Gadas, P., Škoda, R. (2013) Darrellhenryite, Na(LiAl2)Al6(BO3)3Si6O18(OH)3O, a new mineral from the tourmaline supergroup. American Mineralogist, 98 (10) 1886-1892 doi:10.2138/am.2013.4416 | Journal (article/letter/editorial) | | tourmaline species, which is closely related to elbaite through the substitution YAlW0.5OY1 LiW–0.5(OH)–1...which are known to exist in nature: elbaite (Vernadsky 1913), fluor-liddicoatite (Dunn et al. 1977), rossmanite...rossmanite (Selway et al. 1998), and fluor-elbaite (Bosi et al. 2013) and four hypothetical species (Table...5)Al6Si6O18(BO3)3(OH)3O; 3 = elbaite Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)3OH; 4 = fluor-elbaite Na(Li1.5Al1.5)Al6Si6O18(BO3)3(OH)3F;...darrellhenryite Na(LiAl2) Al6Si6O18(BO3)3(OH)3O; 6 = fluor-liddicoatite Ca(Li2Al)Al6Si6O18(BO3)3(OH)3F; 7 = |  | Lussier, A. J., Aguiar, P. M., Michaelis, V. K., Kroeker, S., Hawthorne, F. C. (2009) The occurrence of tetrahedrally coordinated Al and B in tourmaline: An 11B and 27Al MAS NMR study. American Mineralogist, 94 (5) 785-792 doi:10.2138/am.2009.3000 | Journal (article/letter/editorial) | | transition-metal content and different species (elbaite, “fluor-elbaite,” liddicoatite, dravite, uvite, olenite...compositions. Previous 11B MAS NMR work has examined elbaite or olenite, and many of the specimens examined...the present study are the same species because elbaite or olenite can be sufficiently low in paramagnetic...other compositions (magnesiofoitite, schorl, “fluor-elbaite,” liddicoatite, uvite), but it is difficult...reported small amounts (0.1–0.2 apfu) of [4]B in elbaite, showing that at low field (7.05 T), there is overlap |  | | Journal (article/letter/editorial) | | Shield. The mineral assemblage containing zoned “fluor-elbaite”–liddicoatite crystals was the last product...in nature. Keywords: tourmaline, liddicoatite, elbaite, rare element, lithium, tantalum, cesium, granitic...granitique contaminé a mené à une activité accrue du fluor, et à une cristallisation in situ des minéraux enrichis...of views has been expressed for the origin of elbaite-subtype pegmatites, as the Vlastějovice pegmatite...in the Northwest Territories of Canada contains elbaite-subtype pegmatites interpreted to be fractionated |
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