 | | Journal (article/letter/editorial) | | 2013 Let’s Get it Right Paraíba Tourmaline, or Not? I n the gem world Paraíba tourmaline is a hot topic... and green tourmaline (elbaite) in the northeastern state of Paraíba, Brazil. The locality is precisely...precisely given as Mina da Batalha, near São José da Batalha (Fritsch et al. 1990). At the time this was very...dos Quintos mines (Karfunkel and Wegner 1996)— so Brazil has been producing small amounts of this material...Norte was marketed as “Paraíba” tourmaline although it did not come from Paraíba. No one seemed to mind |  | | Journal (issue) | | Number Two Articles Cuprian elbaite from the Batalha mine, Paraíba, Brazil . . . . . . . . . . . . . ...by W. E. Wilson Stibnite from the Wuling antimony mine, Jianxi province, China . . . . . . . . . . . ....and corrosion surfaces, from the Medra mine, Minas Gerais, Brazil. Keith Proctor collection; Jeff Scovil...info@trafford-flynn.com UK Mining Ventures Fluorite—Rogerley mine, Weardale, UK www.ukminingventures.com e-mail: Jef520@aol...March–April, 2002 Cuprian Elbaite from the Batalha Mine, Paraíba, Brazil Wendell E. Wilson The Mineralogical |  | | Journal (issue) | | FEATURE ARTICLES 260 An Update on “Paraíba” Tourmaline from Brazil James E. Shigley, Brian C. Cook, Brendan...elbaites are expanding at the original deposit in Paraíba State, and similar tourmalines are also being mined...on amethyst, citrine, and ametrine from the Anahí mine, Bolivia • “Copal” resin from Madagascar • Iolite...corundum from Wyoming • Green kyanite from Bahia, Brazil • “Ruby Rock” cabochons • Tourmaline from Warner...early interest in geology while exploring the gem-bearing pegmatites of San Diego County. After receiving |  | | Journal (issue) | | SPRING 2006 SPRING 2006 PAGES 1–94 “Paraíba” Tourmaline from Brazil, Nigeria, and Mozambique Lead Glass–Filled..._____________ 4 Carat Points “Paraíba”-type Copper-bearing Tourmaline from Brazil, Nigeria, and Mozambique:...chemical compositions of bright blue-to-green “Paraíba”type tourmaline from the three known sources. ...Myanmar • Gem-quality massive pink muscovite from Brazil • Pyrope-spessartine from Tanzania • Transparent...in the late 1980s, copper-bearing “electric” blue elbaite from Paraíba State, Brazil, has been one of the |  | Vereshchagin, O. S., Rozhdestvenskaya, I. V., Frank-Kamenetskaya, O. V., Zolotarev, A. A., Mashkovtsev, R. I. (2013) Crystal chemistry of Cu-bearing tourmalines. American Mineralogist, 98 (8) 1610-1616 doi:10.2138/am.2013.4408 | Journal (article/letter/editorial) | | pages 1610–1616, 2013 Crystal chemistry of Cu-bearing tourmalines Olga S. Vereshchagin,1,* Ira V. Rozhdestvenskaya...structures of two elbaites from the Paraiba deposit with copper contents of 3.51 and 1.61 wt% CuO [a = 15.881(1)...1028(9), respectively], as well as a synthetic Cu-bearing olenite with a CuO content of 8.39 wt% [a = 15...relationships of copper-bearing tourmalines has been analyzed. It is shown that copper cations and cations...Distortions of polyhedra in the structures of Cu-bearing elbaites are similar, and significantly higher |  | | Journal (issue) | | COMMUNICATIONS ________ 236 Copper-bearing Tourmalines from New Deposits in Paraíba State, Brazil Masashi Furuya...ruby 252 Gem News International Large diamond mine to be developed in Saskatchewan, Canada • Spurious...from Pakistan • Multicolored fluorite from Brazil • Cr/V-bearing kyanite from Madagascar and elsewhere •...possible diamond inclusion in quartz from Diamantina, Brazil • An unusual type of phenomenal quartz • A new...sources of marble-hosted rubies in South Asia • Cr/V-bearing green spodumene from Afghanistan • Large beryl |  | | Journal (issue) | | moving products from mine to consumer. The main cover image was taken at the AnahÌ mine in Bolivia, a major...Collection no. 32510; and (8) a 13.94 cuprian elbaite tourmaline from Mozambique, courtesy of Pala International...of the company (Even-Zohar, 2007). Because of the mine closures, De Beers’s market share by volume fell...pink diamonds (0.51 and 0.55 ct) from the Argyle mine in Australia were part of the 2007 Argyle pink diamonds...had acquired a 32.8% interest in Angola’s Catoca mine in the early 1990s. Commissioned in 1997, Catoca |  | | Journal (volume) | | on a modern twist 17 Russia’s Malyshev emerald mine reopens under new management 21 Building consumer...DIRECTORS Andrew Cody, Australia Sergio Martins, Brazil Emmanuel Piat, France Constantin Wild, Germany...existing trade shows in Japan, Hong Kong, Thailand, Brazil, and even in Dubai. We have explored possibilities...to provide them with necessary information. Our mine tour trips have proved invaluable to participants...Reportedly, the new emerald mines in Brazil and the restarted Malysheva mine in Ekaterinburg, Russia, were offering |
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Batalha mine, São José da Batalha, Salgadinho, Paraíba, Brazil