 | Ertl, A., Rossman, G. R., Hughes, J. M., London, D., Wang, Y., O'Leary, J. A., Dyar, M. D., Prowatke, S., Ludwig, T., Tillmanns, E. (2010) Tourmaline of the elbaite-schorl series from the Himalaya Mine, Mesa Grande, California: A detailed investigation. American Mineralogist, 95 (1) 24-40 doi:10.2138/am.2010.3271 | Journal (article/letter/editorial) | | Tourmaline of the elbaite-schorl series from the Himalaya Mine, Mesa Grande, California: A detailed investigation...and Planetary Sciences, California Institute of Technology, Pasadena, California 91125-2500, U.S.A. 3 Office...on tourmalines from gem pockets in the Himalaya mine, San Diego County, California, including a strongly...grayish-yellow, intermediate zone is Mn-rich âfluor-elbaiteâ that contains a relatively high Mn content...content with ~6 wt% MnO. The nearly colorless âfluor-elbaiteâ rim has the highest Li content of all zones. There |  | | Journal (article/letter/editorial) | | 2000 Lakeshore Drive, New Orleans, Louisiana 70148, USA Brendan M. LAURS Gemological Institute of America...Mouawad Campus, 5345 Armada Drive, Carlsbad, California 92008, USA Abstract Yellow to yellow-green tourmaline...(> 3 wt.% MnO) elbaite and âfluor-elbaiteâ. Though rare, yellow rossmanite and âfluor-rossmaniteâ from...crystallize yellow elbaite, âfluor-elbaiteâ, rossmanite or âfluor-rossmaniteâ. Keywords: yellow elbaite, Mn-rich...Mn-rich tourmaline, âtsilaisiteâ, âfluor-rossmaniteâ. Sommaire Nous avons analysĂŠ la tourmaline jaune Ă jaune |  | Ertl, Andreas, Giester, Gerald, SchĂźssler, Ulrich, Brätz, Helene, Okrusch, Martin, Tillmanns, Ekkehart, Bank, Hermann (2013) Cu- and Mn-bearing tourmalines from Brazil and Mozambique: crystal structures, chemistry and correlations. Mineralogy and Petrology, 107 (2) 265-279 doi:10.1007/s00710-012-0234-6 | Journal (article/letter/editorial) | | 30 wt% Mn2O3, respectively. Another Cu-bearing elbaite (with 0.94 wt% CuO and 0.40 wt% Mn2O3) from the...samples (from Nepal, Zambia and the San Diego Mine, California, USA). These samples contained up to 6.23...Quintos de Baixo and BoquerĂŁo, in the state of Rio Grande del Norte (Karfunkel and Wegner 1996; Shigley et...available on the gem market in 1987, exciting considerable interest to gemmologists and gem traders. It turned...less likely that the presence of Fe2+ at a very Gem-quality tourmalines from the Alto Ligonha plateau |  | | Journal (article/letter/editorial) | | the Mulungu mine, Brazil; (3) Cu- and Bi-bearing tourmalines from the Alto dos Quintos mine, Brazil. Two...not have any stable arrangement in Cu-bearing fluor-elbaite. The occurrence of Pb4+ at the Y site could...4 wt % PbO) was described by [28]. Tourmalines (fluor-liddicoatite; Cu below the detection limit) with... Their studied samples (tourmalines of the fluor-elbaiteârossmanite solid solution series) came from...other pegmatites, like the Himalaya mine pegmatite in Mesa Grande, Ca, USA [37]. The average charge of |  | | Catalog/List | | 10:00 AM â 5:00 PM CT Heritage Auctions Design District Annex 1518 Slocum Street ⢠Dallas, TX 75207 Session...5:00 PM ET LOT VIEWING Heritage Auctions Design District Annex 1518 Slocum Street ⢠Dallas, TX 75207 Thursday...grow. 73001 TOURMALINE Momeik Township, Kyaukme District, Shan State, Myanmar (Burma) Looking almost like...com/6150 73002 TOURMALINE Momeik Township, Kyaukme District, Shan State, Myanmar (Burma) For those that have...750 73003 TOURMALINE Momeik Township, Kyaukme District, Shan State, Myanmar (Burma) As if Momeik doesnât |  | | Journal (article/letter/editorial) | | Sommaire Le mode dâincorporation structurale du fluor dans la tourmaline dĂŠpend de contrĂ´les internes...OH1â, F1â, O2â. Pour comprendre le comportement du fluor, il faut rĂŠaliser que le F1â ne peut se trouver...contrĂ´le sur le taux dâoccupation du site W par le fluor. Un dĂŠsordre de Mg et Al impliquant les sites Y...RĂŠdaction) Mots-clĂŠs: tourmaline, cristallochimie, fluor, assemblages riches en F, fractionnement, banque..._________ Alkali group Schorl Fluor-schorl âOxy-schorlâ* Dravite Fluor-dravite âOxy-draviteâ* Chromium-dravite |  | | Journal (issue) | | page 14 In this issue ⌠Mineral of the month: Elbaite ........... p. 2 Program: Tourmalines of Maine...EFMLS: Annual convention ................ p. 20 Elbaite Source: Smithsonian Institution. Upcoming events...21 Photo: Chip Clark. Mineral of the Month Elbaite Happy St. Patrickâs Day! by Sue Marcus Whatâs...Watermelon tourmaline is a particular, informal form of elbaite, our March Mineral of the Month. Northern Virginia...they see elbaite in their mindâs eye, usually as a single red-pink or green crystal. Elbaite is unusual |  | Bosi, F., Skogby, H., Agrosi, G., Scandale, E. (2012) Tsilaisite, NaMn3Al6(Si6O18)(BO3)3(OH)3OH, a new mineral species of the tourmaline supergroup from Grotta d'Oggi, San Pietro in Campo, island of Elba, Italy. American Mineralogist, 97 (5) 989-994 doi:10.2138/am.2012.4019 | Journal (article/letter/editorial) | | of the tourmaline supergroup from Grotta dâOggi, San Pietro in Campo, island of Elba, Italy Ferdinando...of a LCT-type pegmatite body from Grotta dâOggi, San Pietro in Campo, island of Elba, Italy, in association...association with quartz, K-feldspar, plagioclase, elbaite, and schorl. Crystals are greenish yellow with a...and Y(Al+Li)+WF â 2YMn2++WOH, which relates fluor-elbaite to the tsilaisite component. Infrared absorption...bond-valence requirements. A compositional trend from fluor-elbaite to tsilaisite is observed in samples from Elba |  | | Journal (issue) | | cm, from the 1700 level, Zinc Corporation mine, Broken Hill, New South Wales, Australia. Collection of...collection, John Chapman photo. ⢠2.5 cm, Top Camp mine, Western Ausytralia. George Stacey collection, Jeff...Scovil photo. Middle row from left: ⢠2.3 cm, Kintore mine, Coolgardie, Western Australia. Aloe Family collection;...various colonies as well, specifically to aid the mining community in exploiting much needed natural resources:...Australia (1896). To provide training in mining and metallurgy, Mining Schools were opened at Ballarat and |  | NovĂĄk, M., Ertl, A., Povondra, P., GaliovĂĄ, M. V., Rossman, G. R., Pristacz, H., Prem, M., Giester, G., Gadas, P., Ĺ koda, 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) | | and Planetary Sciences, California Institute of Technology, Pasadena, California 91125-2500, U.S.A. 1 ...tourmaline species, which is closely related to elbaite through the substitution YAlW0.5OY1 LiWâ0.5(OH)â1...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; |  | Ertl, Andreas, Schuster, Ralf, Hughes, John M., Ludwig, Thomas, Meyer, Hans-Peter, Finger, Friedrich, Dyar, M. Darby, Ruschel, Katja, Rossman, George R., KlĂśtzli, Urs, Brandstätter, Franz, Lengauer, Christian L., Tillmanns, Ekkehart (2012) Li-bearing tourmalines in Variscan granitic pegmatites from the Moldanubian nappes, Lower Austria. European Journal of Mineralogy, 24 (4) 695-715 doi:10.1127/0935-1221/2012/0024-2203 | Journal (article/letter/editorial) | | Geology, University of Vermont, Burlington, VT 05405, USA 4 Institut fuĚr Geowissenschaften, Im Neuenheimer...Hadley, MA 01075, USA 7 Division of Geological and Planetary Sciences, California Institute of Technology...Technology, Pasadena, CA 91125-2500, USA 8 Department of Lithospheric Research, Geozentrum, UniversitaĚt Wien...classified as fluor-schorl, schorl, foitite, magnesiofoitite, olenite and ââfluor-elbaiteââ with varying...92Al0.04B0.04O18] V(OH)3 W[F0.81(OH)0.19], ââfluor-elbaiteââ with a Âź 15.8887(3), c Âź 7.1202(3) AĚ, to |  | | Journal (article/letter/editorial) | | strong Y, REE signature of the whole pegmatite district persists through advanced fractionation into the...in sample RK (collected by Roy Kristiansen on the mine dump) is dark olive brown and is embedded in coarse...GR specimen (collected by the first author on the mine dump) which is cut by a thin layer carrying pale...classify as fluor-schorl (Ertl et al. 2016). The RK sample has minor (fluor-)dravite and (fluor-)elbaite components... Sample GR is characterised by a distinct (fluor-)elbaite component and also more elevated Mn contents |  | | Journal (article/letter/editorial) | | NaLiAl2Al6Si6O18(BO3)3(OH)3O Dravite NaMg3Al6Si6O18(BO3)3(OH)3OH Elbaite Na(Li1.5,Al1.5)Al6Si6O18(BO3)3(OH)3OH Feruvite...(MgAl5)Si6O18(BO3)3(OH)3OH Fluor-buergerite NaFe3+ 3 Al6Si6O18(BO3)3O3F Fluor-dravite NaMg3Al6Si6O18(BO3)3(OH)3F...NaMg3Al6Si6O18(BO3)3(OH)3F Fluor-elbaite Na(Li1.5,Al1.5)Al6Si6O18(BO3)3(OH)3F Fluor-liddicoatite Ca(Li2Al)Al6Si6O18(BO3)3(OH)3F...Ca(Li2Al)Al6Si6O18(BO3)3(OH)3F Fluor-schorl NaFe2+ 3 Al6Si6O18(BO3)3(OH)3F Fluor-tsilaisite NaMn2+ 3 Al6Si6O18(BO3)3(OH)3F...Al6Si6O18(BO3)3(OH)3F Fluor-uvite CaMg3(Al5Mg)Si6O18(BO3)3(OH)3F 2+ Foitite o(Fe2 Al)Al6Si6O18(BO3)3(OH)3OH Lucchesiite |  | | Journal (article/letter/editorial) | | Thermally induced cation redistribution in fluor-elbaite and Febearing tourmalines Ferdinando Bosi1 ...of Springer Nature 2018 Abstract An Fe-rich fluor-elbaite was thermally treated in air and hydrogen atmosphere...sample thermal history. Keywords Tourmaline ¡ Fluor-elbaite ¡ Crystal structure refinement ¡ Infrared spectroscopy...name schorl is commonly associated with granites, elbaite with Li-enriched pegmatites and dravite with metamorphic...different deposits. In the present study, Fe-rich fluor-elbaite from Cruzeiro (Brazil) has been fully characterized |  | | Journal (article/letter/editorial) | | Oxy-schorl Oxy-vanadium-draviteb Darrellhenryite Fluor-elbaite Vanadio-oxy-dravite Vanadio-oxy-chromium-dravite...avite Chromo-alumino-povondraite Fluor-tsilaisite Maruyamaite Bosiite Calcic group Adachiite Lucchesiite... chromium-dravite, ďŹuor-dravite, ďŹuor-schorl, elbaite, povondraite, ďŹuorbuergerite, olenite, luinaite-(OH)...quartz veins in the Baraboo Quartzite (Wisconsin, USA), and they found cores richer in âoxy-foititeâ. Other...of the tourmaline supergroup from Grotta d'Oggi, San Pietro in Campo, island of Elba, Italy, Am. Mineral |  | Kolitsch, Uwe, Andresen, Peter, Husdal, Tomas Andersen, Ertl, Andreas, Haugen, Astrid, Ellingsen, Hans Vidar, Larsen, Alf Olav (2013) Tourmaline-group minerals from Norway, part II: Occurrences of luinaite-(OH) in Tvedalen, Larvik and Porsgrunn, and fluor-liddicoatite, fluor-elbaite and fluor-schorl at Ă
gskardet, Nordland. Norsk Bergverksmuseum Skrift, 50. 23-41 | Journal (article/letter/editorial) | | Tvedalen, Larvik and Porsgrunn, and fluor-liddicoatite, fluor-elbaite and fluor-schorl at Agskardet, Nordland...members from Norway, occurrences of luinaite-(OH), fluor-schorl and other members have been reported (Kolitsch...detected: schorl, fluor-schorl, luinaite-(OH), "luinaite-(F)", dravite, fluor-elbaite, fluorliddicoatite...amazonite pegmatite locality confirmed both to be fluor-schorl (Kolitsch et al. 2011). A study of a third...crystal terminations, confirmed again an Fe-rich fluor-schorl, but this time richer in OH on the W site |  | Sunde, Ăyvind, Friis, Henrik, Andersen, Tom, Trumbull, Robert B., Wiedenbeck, Michael, Lyckberg, Peter, Agostini, Samuele, Casey, William H., Yu, Ping (2020) Boron isotope composition of coexisting tourmaline and hambergite in alkaline and granitic pegmatites. Lithos, 352. 105293 doi:10.1016/j.lithos.2019.105293 | Journal (article/letter/editorial) | | Jo u California, Davis, California 95616, United States NMR Facility, University of California, Davis...Davis, California 95616, United States * oyvind.geologi@gmail.com Declaration of interests: None Abstract...and (iii): Peraluminous pegmatites from Pakistan Himalaya, Central Transbaikalia and Pamir located in the...Peraluminous granitic pegmatites, Bulachi, Pakistan Himalaya The sampled pegmatite is located near Bulachi...Pakistan, which is famous for the occurrence of gem-bearing pegmatites (Kazmi et al., 1985). The pegmatites |  | Ertl, Andreas, Kolitsch, Uwe, Dyar, M. Darby, Meyer, Hans-Peter, Rossman, George R., Henry, Darrell J., Prem, Markus, Ludwig, Thomas, Nasdala, Lutz, Lengauer, Christian L., Tillmanns, Ekkehart, Niedermayr, Gerhard (2016) Fluor-schorl, a new member of the tourmaline supergroup, and new data on schorl from the cotype localities. European Journal of Mineralogy, 28 (1) 163-177 doi:10.1127/ejm/2015/0027-2501 | Journal (article/letter/editorial) | | Article Special issue dedicated to Thomas Armbruster Fluor-schorl, a new member of the tourmaline supergroup...Holyoke College, South Hadley, Massachusetts 01075, USA 4 Institut fuĚr Geowissenschaften, UniversitaĚt Heidelberg...Planetary Sciences, California Institute of Technology, Pasadena, California 91125â2500, USA 6 Department of...University, Baton Rouge, Louisiana 70803, USA Abstract: Fluor-schorl, NaFe2+3Al6Si6O18(BO3)3(OH)3F, is...to Sachsenklemme), Trentino, South Tyrol, Italy. Fluor-schorl was formed as a pneumatolytic phase and in |  | | Journal (article/letter/editorial) | | (2012) a Elbaite-schorl 119 1542 Pandy and Schreuer (2012) a Elbaite-schorl 118 1542 Elbaite-schorl 117...(1987) a Elbaite 115 1555 a Elbaite 114 1545 Elbaite 115 a 1542 a Uvite 115 1586 a Schorl-elbaite 121 1550...A.J., Abdu, Y., and Hawthorne, F.C. (2013a) Fluor-elbaite, Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F, a new...Scandale, E. (2015b) Fluor-tsilaisite, NaMn3Al6(Si6O18)(BO3)3(OH)3F, a new tourmaline from San Piero in Campo...C.M., Hawthorne, F.C., and Ottolini, L. (2011) Fluor-dravite, NaMg3Al6Si6O18(BO3)3(OH)3F, a new mineral |  | | Journal (article/letter/editorial) | | Louisiana State University, Baton Rouge, LA, 70803, USA; Dutrow@lsu.edu * Corresponding author Tourmaline...group Schorl Fluor-schorl Oxy-schorl Dravite Fluor-dravite Oxy-dravite Elbaite Fluor-elbaite Povondraite...Na Na Na Na Calcic group Feruvite Liddicoatite Fluor-liddicoatite Fe2+3 Fe2+3 Fe2+2Al Mg3 Mg3 Al2Mg...in the W site (see their Fig. 2). Consequently, fluor-tourmaline species are present in alkali and calcic...tourmalines, those with > 0.5 cations in the X-site, but fluor-tourmaline species are absent in vacancy-dominated |  | | Journal (issue) | | FEATURE ARTICLES 2 A New Method for Determining Gem Tourmaline Species by LA-ICP-MS Ziyin Sun, Aaron...a simplified but comprehensive classification of gem tourmaline species based on quantitative measurement...Documents a visit to the sapphire, opal, and emerald mining and trading areas of Ethiopia. REGULAR FEATURES...in opal ⢠Trapiche-like ruby from the Batakundi mine in Kashmir ⢠Sapphire inclusion with rutile âsilkâ...Orpiment in barite 118 Gem News International Tucson 2019 ⢠Boulder opal mining ⢠Brazilian alexandrite |  | Kontak, Daniel J., Dostal, Jaroslav, Kyser, T. Kurt, Archibald, Douglas A. (2002) A petrological, geochemical, isostopic and fluid-inclusion study of 370 Ma pegmatite-aplite sheets, Peggys Cove, Nova Scotia, Canada. The Canadian Mineralogist, 40 (5) 1249-1286 doi:10.2113/gscanmin.40.5.1249 | Journal (article/letter/editorial) | | pegmatites described, for example, from San Diego County, California (Foord 1977, Stern et al. 1986). Signs...of 1â5 cm. Such pockets are commonly occupied by gem-quality crystals of various minerals in pegmatites...Dravite & Uvite 2+ Fe at Y-site Schorl b Elbaite & Fluor-Elbaite 0.8 1 0.1 0.01 0.6 Fractionation ...0.2 Tourmaline/Chondrite Al at Y-site a a Elbaite 1.5 PCG-023A PCG-020 PCG-010 1 0.0 0.0 0.2...classic suites of zoned pegmatites (e.g., San Diego County), indicate a single dilational event with |  | Ertl, Andreas, Vereshchagin, Oleg S., Giester, Gerald, Tillmanns, Ekkehart, Meyer, Hans-Peter, Ludwig, Thomas, Rozhdestvenskaya, Ira V., Frank-Kamenetskaya, Olga V. (2015) STRUCTURAL AND CHEMICAL INVESTIGATION OF A ZONED SYNTHETIC Cu-RICH TOURMALINE. The Canadian Mineralogist, 53 (2) 209-220 doi:10.3749/canmin.1400078 | Journal (article/letter/editorial) | | CuO. The crystal structure of another Cu-bearing elbaite (with ~1 wt.% CuO) from the same locality was refined...synthesized at 650 °C and 1.5 kbar with natural elbaite as a seed crystal. Some additional details of the...different zones are (zone 1 grew directly on the elbaite seed crystal): The final site-populations of the...12 apfu; Table 1). Zone 1, intergrown with the elbaite seed crystal, contains the highest Li content of...ed boron in tourmalines from the liddicoatite-elbaite series from Madagascar: Structure, chemistry, and |  | | Journal (article/letter/editorial) | | suggested that the out-of-fit plot of Mn2+free elbaite sample Elb2rim with respect to their linear relation...Linking MĂśssbauer and structural parameters in elbaite-schorl-dravite tourmalines. American Mineralogist...Lucchesi, S. (2005a) Crystal chemistry of the elbaite-schorl series. American Mineralogist, 90, 1784â1792...of the tourmaline supergroup from Grotta dâOggi, San Piero in Campo, island of Elba, Italy. American Mineralogist...A.J., Abdu, Y., and Hawthorne, F.C. (2013b) Fluor-elbaite, Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F, a new |  | | Conference Proceedings | | term cultured pearl. Experts from various European gem testing laboratories were invited to attend a series...per country; this member being the Director of a Gem Testing Laboratory, or a gemmologist of the calibre...(1970); Vitznau, Switzerland (1972); Washington D. C., USA (1975), The Hague, The Netherlands (1977), Idar Oberstein...14:40 Alessandra Costanzo , Martin Feely: Review gem-materials from Connemara, Western Ireland. 14:40...Maria Teresa Caldes, Stephane Jobic: Introduction to mine ralomimetism : the case of photochromic sodalite |
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Himalaya Mine, Gem Hill, Mesa Grande Mining District, San Diego County, California, USA