 | | Journal (article/letter/editorial) | | COMPLEXLY ZONED FIBROUS TOURMALINE, CRUZEIRO MINE, MINAS GERAIS, BRAZIL: A RECORD OF EVOLVING MAGMATIC AND...deep pink elbaite host from the Cruzeiro mine, Minas Gerais, Brazil, provide evidence for the compositional...preserved in the fiber interior, is a dark blue foitite; the blue-gray second generation varies from Fe-rich...tourmaline dissolution, foitite, elbaite, fluids, Cruzeiro mine, Minas Gerais, Brazil. SOMMAIRE Des générations...elbaïte rose foncé, provenant de la mine Cruzeiro, province de Minas Gerais, au Brésil, permettent de reconstruire |  | Soares, D. R., Beurlen, H., Barreto, S. d. B., Da Silva, M. R. R., Ferreira, A. C. M. (2008) COMPOSITIONAL VARIATION OF TOURMALINE-GROUP MINERALS IN THE BORBOREMA PEGMATITE PROVINCE, NORTHEASTERN BRAZIL. The Canadian Mineralogist, 46 (5) 1097-1116 doi:10.3749/canmin.46.5.1097 | Journal (article/letter/editorial) | | THE BORBOREMA PEGMATITE PROVINCE, NORTHEASTERN BRAZIL Dwight Rodrigues SOARES§ Centro Federal de Educação...671, 58100-000, Campina Grande, State of Paraíba, Brazil Hartmut BEURLEN Programa de Pós-Graduação em Geociências...State of Pernambuco, Brazil Sandra de Brito BARRETO and Marcelo Reis Rodrigues DA SILVA Departamento de...Ramos s.n., 54740-530, Recife, State of Pernambuco, Brazil Ana Claudia Mousinho FERREIRA Centro Federal de...671, 58100-000, Campina Grande, State of Paraíba, Brazil Abstract Various species of the tourmaline-group |  | | Journal (article/letter/editorial) | | The Pederneira Mine São José da Safira, Minas Gerais, Brazil Dedication This article is the culmination...Pederneira mine and with the people who live and breathe the project every day. The Pederneira mine partners...collaboration and belief in our project, the Pederneira mine would have been closed long, long ago. Thank you...me (and the world) your culture and this amazing mine with all its incredible treasures. Thanks also to...Pederneira mine. James Elliott photo; Fine Minerals International specimen. The Pederneira Mine ▲ ▲ São |  | | Journal (article/letter/editorial) | | green tourmaline (hat morphology). Here, Na-rich foitite fibers initially develop acicular morphology and...from reddish to bluish. Sample locality: Minas Gerais, Brazil. (b) Tourmaline fibers as mats surrounding...nucleate on dark tourmaline cores. Sample locality: Minas Maria, Cananea District, Mexico. (c) Tourmaline...elbaite. Sample locality: Pederneira Mine, Minas Gerais, Brazil. (d) Tourmaline fibers as fibrous growth...the elbaite host. Sample locality: Cruzeiro Mine, Minas Gerais, Brazil. either as hair-like curved fibers |  | | Journal (article/letter/editorial) | | Canadian Mineralogist Vol. 38, pp. 1399-1408 (2000) FOITITE: FORMATION DURING LATE STAGES OF EVOLUTION OF COMPLEX...ABSTRACT Zoned crystals of tourmaline (elbaite–foitite) were found in pockets of the lepidolite-subtype...western Moravia, Czech Republic, and the White Queen mine, Pala, San Diego County, California. Zoned crystals...Fe-rich elbaite, and dark violet to black foitite. Elbaite– foitite is associated with quartz, cookeite, albite...and muscovite at the White Queen mine. Chemical compositions of foitite and associated Fe-poor to Fe-rich |  | Bosi, Ferdinando, Andreozzi, Giovanni B., Federico, Marcella, Graziani, Giorgio, Lucchesi, Sergio (2005) Crystal chemistry of the elbaite-schorl series. American Mineralogist, 90 (11) 1784-1792 doi:10.2138/am.2005.1827 | Journal (article/letter/editorial) | | elbaite-schorl tourmaline crystals from the Cruzeiro pegmatite (Minas Gerais, Brazil) was studied with a multi-analytical...well-characterized environment, the Cruzeiro pegmatite in Brazil, were examined because they feature...SAMPLE OCCURRENCE The Cruzeiro pegmatite is located in the Brazilian state of Minas Gerais and is included...sequence constitutes the topographic elevation of Serra da SaÞra, at the top of which outcrop thick layers of...quartzite containing the lens-shaped dikes of the Cruzeiro pegmatite. For a full description of the geological |  | De Oliveira, Ester Figueiredo, Castañeda, Cristiane, Eeckhout, Sigrid Griet, Gilmar, Messias Menezes, Kwitko, Rogério Ribeiro, De Grave, Eddy, Botelho, Nilson Francisquini (2002) Infrared and Mössbauer study of Brazilian tourmalines from different geological environments. American Mineralogist, 87 (8) 1154-1163 doi:10.2138/am-2002-8-914 | Journal (article/letter/editorial) | | N. CP 941 CEP 30123-970, Belo Horizonte, Minas Gerais, Brazil 2 Instituto de Geociências, Universidade...3173 CEP 30140-970, Brasília, Distrito Federal, Brazil 3 Department of Subatomic and Radiation Physics...de Ouro Preto, CEP 35400-000 Ouro Preto, Minas Gerais, Brazil 5 Companhia Vale do Rio Doce, CVRD, BR 262-Km...P.O. Box 09 CEP 33010-970, Santa Luzia, Minas Gerais, Brazil ABSTRACT Infrared (IR) spectra in the OH...and hydrothermal deposits in the state of Minas Gerais, Brazil. In the magmatic environment, samples of |  | | Report (issue) | | pale blue barite from the Ouichane (or Sidi Lahcem) mine in Nador Province, and furthermore I cautioned against...this with the barite from the Bou Nahas (or Afrou) mine in the Oumjrane-Alnif district near Meknes. Really...These new specimens come from the Shijiangshan Pb-Zn mine, which Jordi locates close to “Jipeng” in the Huanggang...much, much more than the famous Huanggang Sn-Fe mine, see the articles in our September-October 2012...resembling tarbuttite crystals from the old Broken Hill mine at Kabwe, Zambia. Mixed with them, on matrix plates |  | | Journal (article/letter/editorial) | | X-site-vacant group Foitite G*** Fe 2+ 2 Al Al6 Si6O 18 (BO 3)3 (OH)3 (OH) Magnesio-foitite** G Mg 2 Al Al...The tourmaline species evolve progressively from foitite to schorl to elbaite to “fluor-elbaite” to fluor-liddicoatite... is found in a pegmatite pocket at the Cruzeiro mine, Brazil. The pegmatite contains Li-rich minerals...anhedral enclaves in the fiber interior, consists of foitite that typically has <0.01 apfu F (Fig. 7a). Generation-2... the general compositional progression of the Cruzeiro fibers is characterized by the substitutions: |  | | Journal (issue) | | Jan/Feb 2024 Vol.99, No.1 ROCKS MINE ."Iii[! iil"J www.tandfonline.com/vram Pegmatite Minerals & Gems...Pegmatites, Limoeiro Mine, Virgem da Lapa, Ara~uaf Pegmatite District, . Minas Gerais, Brazil, Michael A. Menzies...Signature Specimen: Elbaite from the Cruzeiro Pegmatite, Minas Gerais, Brazil: At the Natural History Museum... 72.5 cm, Limoeiro mine, Virgem da Lapa, Ara<;uar district, Minas Gerais, Brazil; private collection...Heliodor, 5.5 x 14.2 cm, Minas Gerais, Brazil; B: Topaz, 8 x 10.5 cm, Minas Gerais, Brazil; C: Aquamarine, 6 |  | | Journal (article/letter/editorial) | | tourmaline from a Li-rich pegmatite in Cruzeiro, Minas Gerais, Brazil. The elbaite shows partial replacement...et al. 2007). Tourmaline from the Chia mine, Minas Gerais, Brazil, was originally classified as being from...metamorphic rocks. One of these is from Escondido, Minas Gerais, and was also misclassified as tourmaline from...Model 2: Li-poor Pegmatite: Escondido mine; Li-rich Pegmatite: Chia mine. FIG. 6. Model 3 classification of...pegmatite tourmaline BZ-CRZ-1 from the Cruzeiro pegmatite, Brazil (Dutrow & Henry 2000). Sample BZ-CRZ-1 |  | | Journal (article/letter/editorial) | | common oxy-schorl, minor oxy-dravite and rare oxy-foitite are more abundant relative to the relevant members...schorl, oxy-schorl, dravite, oxy-dravite, oxy-foitite, wet-chemical analyses, substitution mechanisms...(Li,Ca,F)-poor tourmaline of the schorl-dravite-foitite series in granitic melts are discussed. Geological...works on tourmaline identified schorl, schorl-foitite to schorl-dravite associated with muscovite occurring...73 – oxy-schorl, lepidolite pegmatite; 56 – oxy-foitite, lepidolite pegmatite. Tourmaline typically occurs |  | | Report (issue) | | crystals with lepidolite from the Golconda Mine in Minas Gerais, Brazil by Eberhard Equit, 1993 extraLapis...Simmons, Berhard Wohrmann, Joachim Zang, and Warde da Fonseca-Zang Translated by Alexander U. Falster...Black Tourmaline? ..... 30 Joachim Zang and Warde da Fonseca-Zang The Saint Wenceslas Crown, the most...and Valuable: Cuprian Tourmaline from Paraiba, Brazil ....... 47 Brian C. Cook Discovery ♦ Technology...circa 1910 view of the old mine portal on the north side of the Himalaya Mine in San Diego County, CA. |  | Zhang, A. C., Wang, R. C., Jiang, S. Y., Hu, H., Zhang, H. (2008) CHEMICAL AND TEXTURAL FEATURES OF TOURMALINE FROM THE SPODUMENE-SUBTYPE KOKTOKAY No. 3 PEGMATITE, ALTAI, NORTHWESTERN CHINA: A RECORD OF MAGMATIC TO HYDROTHERMAL EVOLUTION. The Canadian Mineralogist, 46 (1) 41-58 doi:10.3749/canmin.46.1.41 | Journal (article/letter/editorial) | | zoned Ca- and Fe-rich dravite and in interstitial foitite–schorl solid solution. Tourmaline from the altered...compositions of two alkalideficient tourmaline species, foitite and rossmanite. In this paper, we intend to report...contact zone close to the pegmatite, anhedral foitite–schorl fills the interstices and fractures of early...tourmaline is an intermediate solid-solution between foitite and schorl. It has higher Al, Fe, X-site vacancy...Heterogeneous dravite in the altered country-rock, B) foitite–schorl (white) fills the interstices and fractures |  | Pesquera, A., Gil-Crespo, P. P., Torres-Ruiz, F., Torres-Ruiz, J., Roda-Robles, E. (2016) A multiple regression method for estimating Li in tourmaline from electron microprobe analyses. Mineralogical Magazine, 80 (6) 1129-1133 doi:10.1180/minmag.2016.080.046a | Journal (article/letter/editorial) | | and genetic inferences of tourmalines of the foitite-schorl solid solution, Elba Island (Italy). European...Complexly zoned fibrous tourmaline, Cruzeiro mine, Minas Gerais, Brazil: A record of evolving magmatic and...Tourmaline of the elbaite-schorl series from the Himalaya Mine, Mesa Grande, California: A detailed investigation...granitic pegmatite dykes of the Cruzeiro mine, Minas Gerais, Brazil. The Canadian Mineralogist, 36, 415–431 |  | | Journal (article/letter/editorial) | | rare-element pegmatites in the Borborema Province of Brazil Robert B. Trumbull a,⁎, Hartmut Beurlen b, Michael...Recife, Pernambuco, Brazil Instituto Federal de Educação, Ciência e Tecnologia da Paraíba (IFPB), R. Tranquilino...Coelho Lemos 671, 58100-000 Campina Grande, Paraíba, Brazil a r t i c l e i n f o Article history: Received...pegmatite in the Borborema Pegmatite Province of NE Brazil, and also from a leucogranite considered to be...well-studied examples from the Borborema Province of NE Brazil. Previous work documented consistent patterns major-element |  | Gadas, P., Novak, M., Stanek, J., Filip, J., Galiova, M. V. (2012) Compositional Evolution of Zoned Tourmaline Crystals from Pockets in Common Pegmatites of the Moldanubian Zone, Czech Republic. The Canadian Mineralogist, 50 (4) 895-912 doi:10.3749/canmin.50.4.895 | Journal (article/letter/editorial) | | pleochroism) and in BSE images: core (foitite – schorl – magnesio-foitite), intermediate zone (schorl – dravite)...is relatively homogeneous (dravite – magnesio-foitite). A slight decrease in X-site vacancy, in Fetot/(Fetot...granitic pegmatites. Keywords: foitite, schorl, dravite, magnesio-foitite, compositional evolution, zoning...and Fe in the simplified sequence dravite–schorl–foitite ! schorl–olenite ! schorl–elbaite ! elbaite ! rossmanite...show the compositional trend foitite ! schorl ! dravite ! magnesio-foitite from core to rim, both parallel |  | | Book | | MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA © 2009 - CARLOS CORNEJO...Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph taken...photographs: "Parafba" tourmaline (25 x 6 mm), Sao Jose da Batalha, Parafba. Courtesy of Bruno and Rolando Gioia...Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo, Andrea...3. Minerals - Brazil 4. Minerals- Classification 5. Mineralogy 6. Mineralogy - Brazil - History 7. Precious |  | | Journal (article/letter/editorial) | | Rossmanite ‘‘Mg-foitite’’ Foitite ‘‘Fluor-rossmanite’’ ‘‘Fluor-Mg-foitite’’ ‘‘Fluor-foitite’’ ‘‘Oxy-rossmanite’’...‘‘Oxy-Mg-foitite’’ ‘‘Oxy-Mg-ferri-foitite’’ ‘‘Oxy-foitite’’ ‘‘Oxy-ferri-foitite’’ ‘‘Mn-foitite’’ ‘‘Oxy-Mn-foitite’’...‘‘Oxy-Mn-foitite’’ & & & & & & & & & & & & & LiAl2 Mg2Al Fe2+ 2 Al LiAl2 Mg2Al Fe2+ 2 Al Li0.5Al2.5 MgAl2...Liddicoatite Olenite Feruvite Feruvite Foitite Foitite Mg-foitite Uvite Uvite V-Dravite Teertstra...F-feruvite Foitite Foitite Mg-foitite Ferri-uvite Uvite V-Dravite Check for Oxy-foitite Check for |  | Zhang, A. C., Wang, R. C., Hu, H., Chen, X. M., Zhang, H. (2004) OCCURRENCES OF FOITITE AND ROSSMANITE FROM THE KOKTOKAY NO. 3 GRANITIC PEGMATITE DYKE, ALTAI, NORTHWESTERN CHINA: A RECORD OF HYDROTHERMAL FLUIDS. The Canadian Mineralogist, 42 (3) 873-882 doi:10.2113/gscanmin.42.3.873 | Journal (article/letter/editorial) | | Mineralogist Vol. 42, pp. 873-882 (2004) OCCURRENCES OF FOITITE AND ROSSMANITE FROM THE KOKTOKAY NO. 3 GRANITIC...ABSTRACT Two species of X-site-vacant tourmalines, foitite and rossmanite, occur in the Koktokay No. 3 granitic...northwestern China, a spodumene-subtype pegmatite. Foitite–schorl crystals develop as fillings in the interstices...Y+Z R = Fetot + Mg + Mn + Zn). The second-stage foitite–schorl has compositional variations expressed by...formation of foitite–schorl is mainly attributed to pegmatite-derived fluids, the occurrence of foitite further |  | | Journal (article/letter/editorial) | | Si6O18 Ca Ca Ca X-site vacant group Foitite Oxy-foitite Magnesio-foitite Rossmanite Fe2+3 Li2Al Li2Al Al5Mg...core of schorl (XMg = 0.78, Na = 0.56 apfu) to a foitite rim (X-site vacancy = 0.5, Na = 0.44, Ca = 0.6...textures, fibers cutting massive elbaite (Cruzeiro Mine, Brazil) that may reflect the transition from m...processes is found in a sample from the Cruzeiro Mine, Brazil. Here, zoned grey-green fibers fill crosscutting...distinct compositions (Fig. 3b): the earliest is foitite, followed by schorl, the elbaite/fluor-elbaite |  | Ertl, A., Draganits, E., Grasemann, B., Ntaflos, T., Giester, G., Tillmanns, E. (2011) Synkinematic growth of tourmaline on brittle-ductile normal faults, Despotiko Island, Aegean Sea, Greece. The Canadian Mineralogist, 49 (1) 105-116 doi:10.3749/canmin.49.1.105 | Journal (article/letter/editorial) | | W(OH). The tourmaline compositions belong to the foitite – schorl – dravite series. On the basis of X□–XMg...vacancies were observed in sample ED07/DES/38g (foitite with ~X□0.50; Table 4). * Sample ED07/DES/38a...amount of YAl is linked to the X-site vacancy (foitite component). All investigated samples contain significant...hydrothermal tourmalines from the Cruzeiro mine, Minas Gerais, Brazil. Further, Henry & Dutrow (2011) showed...Complexly zoned fibrous tourmaline, Cruzeiro mine, Minas Gerais, Brazil: a record of evolving magmatic and |  | | Journal (article/letter/editorial) | | WISCONSIN: OCCURRENCE AND SIGNIFICANCE OF FOITITE AND “OXY-FOITITE” L. GORDON MEDARIS JR.§ AND JOHN H. FOURNELLE...A. ABSTRACT The alkali-deficient tourmaline, foitite [䡺(Fe2+2Al)Al6Si6O18(BO3)3(OH)3(OH)], and associated...demonstrate the likely existence of a dominant “oxy-foitite” component [䡺(Fe2+Al2)Al6Si6O18(BO3)3(OH)3(O)]...more sodic, acidic later stage. Keywords: foitite, “oxy-foitite”, Baraboo Quartzite, Wisconsin, U.S.A. ...tourmaline are important: foitite, magnesiofoitite, and “oxy-foitite” (Table 1). Foitite, which was formally |  | | Journal (article/letter/editorial) | | is 5.2 cm high and came from the Jonas Mine, Minas Gerais, Brazil. The cushion-cut pink tourmaline is from...Conselheiro Pena, Governador Valadares, Minas Gerais, Brazil. I MAGE COURTESY © G EMOLOGICAL INSTITUTE...(2) Krosse 1995; (3) Ota et al. 2008. Magnesio-foitite: (4) Werding and Schreyer 1996. Na-free Mg system...reprecipitation features: Elbaite (host), Generation 1 = foitite, Generation 2 = schorl/elbaite, and Generation...Complexly zoned fibrous tourmaline, Cruzeiro mine, Minas Gerais, Brazil: A record of evolving magmatic and |  | Bosi, Ferdinando, Naitza, Stefano, Secchi, Francesco, Conte, Aida M., Cuccuru, Stefano, Andreozzi, Giovanni B., Skogby, Henrik, Hålenius, Ulf (2019) Petrogenetic controls on the origin of tourmalinite veins from Mandrolisai igneous massif (central Sardinia, Italy): Insights from tourmaline crystal chemistry. Lithos, 342. 333-344 doi:10.1016/j.lithos.2019.05.042 | Journal (article/letter/editorial) | | chemistry constraints based converged towards RI foitite PT identified as schorl in pegmatites and as...as dravite in veins, both with relevant foitite and magnesioon mineral crystallization SC temperatures...MANUSCRIPT pointing towards the fields of foitite and magnesio-foitite (Fig. 8). Accordingly, the studied tourmalines...that from Arbus intrusives, a similar schorl to foitite crystallization sequence may be observed in the...Complexly zoned fibrous tourmaline, Cruzeiro mine, Minas Gerais, Brazil: a record of evolving magmatic and |
|
Cruzeiro mine, São José da Safira, Minas Gerais, Brazil