 | Bogossian, Jessica, Hagemann, Steffen G., Rodrigues, Vinicius G., Lobato, Lydia Maria, Roberts, Malcolm (2020) Hydrothermal alteration and mineralization in the Faina greenstone belt: evidence from the Cascavel and Sertão orogenic gold deposits. Ore Geology Reviews, 119. 103293 doi:10.1016/j.oregeorev.2019.103293 | Journal (article/letter/editorial) | | Belo Horizonte, Minas Gerais, CEP 31270-901, Brazil 4 Centre for Microscopy, Characterisation and...The Faina greenstone belt is located in central Brazil and contains the Cascavel and Sertão gold deposits...quartz-chlorite-calcite and proximal white mica-biotite-tourmaline-siderite-pyrite. Native gold is located within...orogenic gold systems in Brazil and worldwide. Keywords: Faina greenstone belt, Goiás Archean Block, gold...Sertão deposits, hydrothermal alteration, central Brazil 1. Introduction Archean and Paleoproterozoic greenstone |  | Sirqueira, Ana, Moura, Márcia, Botelho, Nilson, Kyser, T. (2018) Nature and Evolution of Paleoproterozoic Sn and Rare Metal Albitites from Central Brazil: Constraints Based on Textural, Geochemical, Ar-Ar, and Oxygen Isotopes. Minerals, 8 (9) 396 doi:10.3390/min8090396 | Journal (article/letter/editorial) | | Paleoproterozoic Sn and Rare Metal Albitites from Central Brazil: Constraints Based on Textural, Geochemical, Ar-Ar...Brasília, Campus Darcy Ribeiro, Brasília 70910-900, Brazil; ana_rita_felix@hotmail.com (A.R.F.S.); nilsonfb@unb...elements (REE), Ta, and Nb are known in Central Brazil, in the Goias Tin Province. The Sn-P enriched albitites...texture; Tin; rare metals; Ar-Ar age; oxygen isotope; Brazil 1. Introduction Albitites are uncommon rocks with...restricted area, i.e., the Goiás Tin Province, located in Central Brazil [12]. Albitites occur as possible |  | Giuliani, Gaston, Groat, Lee A., Marshall, Dan, Fallick, Anthony E., Branquet, Yannick (2019) Emerald Deposits: A Review and Enhanced Classification. Minerals, 9 (2) 105 doi:10.3390/min9020105 | Journal (article/letter/editorial) | | sub-types hosted in: (IA) Mafic-ultramafic rocks (Brazil, Zambia, Russia, and others); (IB) Sedimentary...sub-types hosted in: (IIA) Mafic-ultramafic rocks (Brazil, Austria); (IIB) Sedimentary rocks-black shale...emerald crystals was discovered in the Carnaíba mine, Brazil; the specimen weighed 341 kg with 1.7 million ct...Marshall; (e) emerald in plagioclase, Carnaíba, Brazil, longest crystal: 6 cm. Photograph: Gaston Giuliani...found on all five continents (Figure 2). Colombia, Brazil, Zambia, Russia, Zimbabwe, Madagascar, Pakistan |  | | Journal (article/letter/editorial) | | graniterelated Buraco do Ouro gold mine, Cavalcante, Central Brazil J. MENEZ * AND N. F. BOTELHO Instituto de Geociências...Universidade de Brasília, Brasília, DF 70910-900, Brazil [Received 16 February 2015; Accepted 21 March 2016;...have been reported in the northeastern part of Goiás State since the beginning of the 18th Century. The...gangue consisting of muscovite, quartz and rare tourmaline. High TiO2 muscovite clasts in the ore are interpreted...situated in the northeastern part of Goiás State, in Central Brazil, where gold exploration and many gold |  | | Report (issue) | | Buraco do Ouro gold mine, Cavalcante town, Goiás State, Brazil. 1.838 (100), 1.172 (95), 0.929 (90), 1.077...Buraco do Ouro gold mine, Cavalcante town, Goiás State, Brazil; average of 8 electron microprobe analyses;...quartz, tourmaline, magnetite. Distribution: From the Buraco do Ouro gold mine, Cavalcante town, Goiás State...State, central Brazil. Name: For the Kalunga people, a community of descendants of African slaves living...the Buraco do Ouro gold mine, Cavalcante, Goiás State, Brazil. Mineral. Mag., 70(1), 123-130. (2) (2006) |  | | Journal (article/letter/editorial) | | Accepted Manuscript The Fazenda Nova Gold Deposit, Goiás Magmatic Arc: Late Neoproterozoic Intrusion-Related...Espada, E.L. Dantas, The Fazenda Nova Gold Deposit, Goiás Magmatic Arc: Late Neoproterozoic Intrusion-Related...journal pertain. THE FAZENDA NOVA GOLD DEPOSIT, GOIÁS MAGMATIC ARC: LATE NEOPROTEROZOIC INTRUSION-RELATED...Mineração Maracá, Brazil. Universidade de Brasília, Instituto de Geociências, Brazil. 3 EEX GeoConsulting...Brasília,Campus Darcy Ribeiro, 70910900: Brasília-DF, Brazil, email: gustavo.marques@yamana.com Abstract The |  | | Journal (article/letter/editorial) | | tourmalines from the Mata Azul pegmatitic field, Central Brazil Simone F. da Silva1,2*, Márcia A. Moura2, Hudson...3007, Campinho, 36415-000 Congonhas, Minas Gerais, Brazil; simone.geologia@gmail.com Instituto de Geociências...Asa Norte, 70910-900 Brasília, Distrito Federal, Brazil Centro de Desenvolvimento de Tecnologia Nuclear...Wernec, 30161970, Belo Horizonte, Minas Gerais, Brazil Corresponding author This study characterizes natural...pegmatites of the Mata Azul Pegmatitic Field in central Brazil. The differences were assessed by applying electron-microprobe |  | Jost, Hardy, Chemale, Farid, Dussin, Ivo Antônio, Tassinari, Colombo Celso Gaeta, Martins, Rodrigo (2010) A U–Pb zircon Paleoproterozoic age for the metasedimentary host rocks and gold mineralization of the Crixás greenstone belt, Goiás, Central Brazil. Ore Geology Reviews, 37 (2) 127-139 doi:10.1016/j.oregeorev.2010.01.003 | Journal (article/letter/editorial) | | mineralization of the Crixás greenstone belt, Goiás, Central Brazil Hardy Jost a,⁎, Farid Chemale Jr. b, Ivo...Ribeiro, Brasília, 70910-900, Distrito Federal, Brazil Núcleo de Geologia, Universidade Federal de Sergipe...Jardim Rosa Elze, São Cristóvão, Sergipe, 49000-000, Brazil Instituto de Geociências, Universidade Federal...Vale, Caixa Postal 15001, Porto Alegre, 91501-970, Brazil d Instituto de Geociências, Universidade de São...Paulo, Brazil e Departamento de Exploração, Mineração Serra Grande, Caixa Postal 24, Crixás, Goiás, 76510-000 |  | Abdel Gawad, Ahmed E., Ene, Antoaneta, Skublov, Sergey G., Gavrilchik, Alexandra K., Ali, Mohamed A., Ghoneim, Mohamed M., Nastavkin, Aleksey V. (2022) Trace Element Geochemistry and Genesis of Beryl from Wadi Nugrus, South Eastern Desert, Egypt. Minerals, 12 (2) 206 doi:10.3390/min12020206 | Journal (article/letter/editorial) | | basicgneisses, dikes as well as quartz bearing tourmaline beryl by pegmatites and (Figures 1cdikes. and...basic dikes asofwell as quartz veins bearing tourmaline and minerals, beryl (FigDuring preparation the...as argentite, native Ni and Bi with beryl and tourmaline [46]. bite, microlite, uranopyrochlore, xenotime...as argentite, native Ni and Bi with beryl and tourmaline average of 44.8 wt%, Cr contents of 2426–2709...of Egypt [44]. BeO in green beryl from quartz tourmaline veins and Minerals 2022, 12, 206 Minerals |  | | Journal (article/letter/editorial) | | Crust-Mantle Evolution of Archean Crust in Central Brazil Jessica Bogossian *, Anthony I. S. Kemp and Steffen...Linking Gold Abstract: The Goiás Archean Block (GAB) in central Brazil is an important gold district...systems; crustal evolution; Goiás Archean Block; central Brazil Central Brazil. Minerals 2021, 11, 944....[6–8]. The Goiás Archean Block (GAB), the only Archean terrane recognized in central Brazil (Figure 1A)...AngloGold Ashanti), and deposits hosted in the Pilar de Goiás and Guarinos greenstone belts (6.5 Moz, Yamana Gold |  | Fuck, Reinhardt A., Dantas, Elton Luiz, Pimentel, Márcio Martins, Botelho, Nilson Francisquini, Armstrong, Richard, Laux, Jorge Henrique, Junges, Sergio Luiz, Soares, José Eduardo, Praxedes, Igor Fernandes (2014) Paleoproterozoic crust-formation and reworking events in the Tocantins Province, central Brazil: A contribution for Atlantica supercontinent reconstruction. Precambrian Research, 244. 53-74 doi:10.1016/j.precamres.2013.12.003 | Journal (article/letter/editorial) | | reworking events in the Tocantins Province, central Brazil: A contribution for Atlantica supercontinent reconstruction... 70910-900 Brasília, DF, Brazil CPRM – Serviço Geológico do Brasil, Brazil c ANU, Australia b a r t...to the Neoproterozoic Brasília Belt in central Brazil. Two main domains were recognized in this crustal...describe accretion and reworking events in central Brazil and their significance for the development of supercontinent...the Paleoproterozoic crustal growth in central Brazil. Some of the Rodinia reconstruction models suggest |  | | Journal (issue) | | Pearl Testing 36 Emeralds from South America – Brazil and Colombia 48 Clinohumite – The Mountain Fire...rise of new economies such as China, India, and Brazil. The challenges have been numerous as these new...every ICA member, I would like to thank the IBGM in Brazil along with every company, individual, and government...deposits in the country, as compared to ruby or tourmaline deposits which are much more rare. This potential... G E M O LO G Y Emeralds from South America – Brazil and Colombia By Dr. Dietmar Schwarz, research manager |  | | Journal (article/letter/editorial) | | 201-C, Salvador, 40170-290, Bahia, Brazil b Geological Survey of Brazil (CPRM)-Av. Pasteur, 404, Urca, Rio...Rio de Janeiro, 22290-240, Rio de Janeiro, Brazil Received 2 May 2004; accepted 1 May 2006 Available...from Venezuela (Imataca Complex), and others from Brazil (Quadrilátero Ferrífero, Itabira, and Guanhães)...mentioning that the Serra dos Carajás Basin in northern Brazil is older. It contains the worlds' largest iron...metamorphosed Caraíba deposit, Curaçá Valley, Bahia, Brazil. This is an unusual, strongly deformed copper deposit |  | Ferro De Oliveira Fortes, Paulo De Tarso, Cheilletz, Alain, Giuliani, Gaston, Féraud, Gilbert (1997) A Brasiliano Age (500 ± 5 Ma) for the Mina III Gold Deposit, Crixás Greenstone Belt, Central Brazil. International Geology Review, 39 (5) 449-460 doi:10.1080/00206819709465283 | Journal (article/letter/editorial) | | III Gold Deposit, Crixás Greenstone Belt, Central Brazil a b Paulo De Tarso Ferro De Oliveira Fortes ..., Campus Universitári, Brasilia, DF 70910-900, Brazil b Centre de Recherches Petrographiques e Géochimiques...III Gold Deposit, Crixás Greenstone Belt, Central Brazil, International Geology Review, 39:5, 449-460, DOI:... Campus Universitário, Brasilia, DF 70910-900, Brazil ALAIN CHEILLETZ, Downloaded by [Florida State...e n s t o n e b e l t , s t a t e of Goiás, c e n t r a l Brazil. T h e y i n c l u d e a m p h i b o |  | | Journal (issue) | | Windmill-cut topaz from Namibia|Tourmaline from Masisi, DRC|Yellow tourmaline from Mavuco, Mozambique|Tremolite...Articles 708 Coloured Stone Mining and Trade in Brazil: A Brief History and Current Status By Aurélien...Collection V. L. Villani photo p. 758 Cover Photo: Brazil is the source of a variety of coloured stones,...ct Swiss Blue topaz, 7.99 ct amethyst, 3.29 ct tourmaline, 2.40 ct aquamarine, 1.12 ct Imperial topaz and... honey-colour chrysoberyl and Paraíba-colour tourmaline. Each includes a definition, history, research |  | Falci, André, Caxito, Fabrício de Andrade, Seer, Hildor José, Valeriano, Cláudio de Morisson, Dias, Paulo Henrique Amorim, Pedrosa-Soares, Antônio Carlos (2018) Provenance shift from a continental margin to a syn-orogenic basin in the Neoproterozoic Araxá nappe system, southern Brasília belt, Brazil. Precambrian Research, 306. 209-219 doi:10.1016/j.precamres.2018.01.004 | Journal (article/letter/editorial) | | Neoproterozoic Araxá nappe system, southern Brasília belt, Brazil André Falci, Fabrício de Andrade Caxito, Hildor...Neoproterozoic Araxá nappe system, southern Brasília belt, Brazil, Precambrian Research (2018), doi: https://doi...Neoproterozoic Araxá nappe system, southern Brasília belt, Brazil André Falci1, Fabrício de Andrade Caxito1*, Hildor...Carlos 6627, CEP 31270-901, Belo Horizonte, MG, Brazil 2 - Centro Federal de Educação Tecnológica de Minas... Olavo Drumond, 25, CEP 38180-510, Araxá (MG), Brazil. 3 - Universidade do Estado do Rio de Janeiro, |  | | Journal (article/letter/editorial) | | Gabriel Terrane, Dom Feliciano Belt, southernmost Brazil Luiz Alberto Vedana, Ruy Paulo Philipp & Miguel...Gabriel Terrane, Dom Feliciano Belt, southernmost Brazil, International Geology Review, DOI: 10.1080/00206814...Gabriel Terrane, Dom Feliciano Belt, southernmost Brazil Luiz Alberto Vedanaa, Ruy Paulo Philippa and Miguel...portion of the Dom Feliciano Belt (DFB) in southern Brazil. There are two large geological domains in South...orogenic cycle of the Neoproterozoic geology of Brazil comprising the period from 800 to 500 Ma (Cordani |  | Ulrich, Stanislav, Hageman, Steffen, Marques, Juliana Charão, Figueiredo, Frederico Lana A. R., Ramires, João E. F., Frantz, José Carlos, Petersen, Klaus (2021) The Orogenic Crixás Gold Deposit, Goiás, Brazil: A Review and New Constraints on the Structural Control of Ore Bodies. Minerals, 11 (10) 1050 doi:10.3390/min11101050 | Journal (article/letter/editorial) | | minerals Review The Orogenic Crixás Gold Deposit, Goiás, Brazil: A Review and New Constraints on the Structural...Petersen, K. The Orogenic Crixás Gold Deposit, Goiás, Brazil: A Review and New Constraints on the Structural... Bento Gonçalves 9500, Porto Alegre 91501-970, Brazil; juliana.marques@ufrgs.br (J.C.M.); jose.frantz@ufrgs...Serra Grande, AngloGold Ashanti, Crixás 76510-000, Brazil; flarfigueiredo@hotmail.com (F.L.A.R.F.); JERa...Target Latin America, Marista, Goiânia 74150-030, Brazil; klaus@targetlatinamerica.com Correspondence: |  | | Journal (issue) | | of other beryllium minerals. First recorded from Brazil in 1785 (Dana, 1892; Bastos, 1969), euclase has...composed principally of plagioclase, quartz and some tourmaline and belong to a phase of sodic metasomatism;...suitable environment for the crystallization of tourmaline, beryl and other species such as the blue topaz...foliation of the host gneiss, and displaced a barren tourmaline pegmatite. Late faulting and movement related...with anhedral quartz, iron-stained kaolin and tourmaline. Beryl crystals were located in the core in a |  | | Book | | until he managed to reach the land of his dreams, Brazil. A specialist in the field of geology and mineralogy...crystals and the remarkable mineral treasures of Brazil, as well as the incredible adventures and difficulties...UNIQUE MINERALS IN WORLD MUSEUMS GEM TREASURES OF BRAZIL Cyan Magenta Yellow Black 1 Delev Ilia Deleff...UNIQUE MINERALS IN WORLD MUSEUMS GEM TREASURES OF BRAZIL SOFIA–MOSCOW 2004 3 Cyan Magenta Yellow Black...MINERAL TREASURES OF BRAZIL 76 85 AN OUTLINE OF THE MINERAL RESOURCES OF BRAZIL ORIGIN OF GIANT CRYSTALS |  | Groat, L. A., Marshall, D. D., Giuliani, G., Murphy, D. C., Piercey, S. J., Jambor, J. L., Mortensen, J. K., Ercit, T. S., Gault, R. A., Mattey, D. P., Schwarz, D., Maluski, H., Wise, M. A., Wengzynowski, W., Eaton, D. W. (2002) MINERALOGICAL AND GEOCHEMICAL STUDY OF THE REGAL RIDGE EMERALD SHOWING, SOUTHEASTERN YUKON. The Canadian Mineralogist, 40 (5) 1313-1338 doi:10.2113/gscanmin.40.5.1313 | Journal (article/letter/editorial) | | overlapping mass of fine, dark tourmaline crystals. The tourmaline crystals are locally associated with...disseminated sulfides apparently coincides with the tourmaline zone, which is surficially marked by ochreous...beryl crystals up to 4 cm in length occur in tourmaline zones and, rarely, in the quartz veins. Some...homogenization. The ␦18O values for coexisting quartz and tourmaline from the quartz veins yield temperatures of formation...d’une masse de petits cristaux enchevêtrés de tourmaline foncée. Leurs sont associés localement de petites |  | Moura, Márcia A., Botelho, Nilson F., Olivo, Gema R., Kyser, Kurt, Pontes, Rodrigo M. (2014) Genesis of the Proterozoic Mangabeira tin–indium mineralization, Central Brazil: Evidence from geology, petrology, fluid inclusion and stable isotope data. Ore Geology Reviews, 60. 36-49 doi:10.1016/j.oregeorev.2013.12.010 | Journal (article/letter/editorial) | | Proterozoic Mangabeira tin–indium mineralization, Central Brazil: Evidence from geology, petrology, fluid inclusion...Instituto de Geociências, Brasília, DF 70910-900, Brazil Department of Geological Sciences and Geological...A-type granite Fluid inclusion Stable isotopes Brazil a b s t r a c t The Mangabeira deposit is the...granitic magmatism in the Goias Tin Province, Central Brazil. © 2013 Elsevier B.V. All rights reserved. 1....In central Brazil, the ca. 1.7–1.8 Ga within-plate granites, which are part of the Goiás Tin Province |  | | Journal (article/letter/editorial) | | charnockitic leucosomes of the Socorro-Guaxupé Nappe, SE Brazil Brenda Chung Rocha, Renato Moraes, Andreas Möller...charnockitic leucosomes of the Socorro-Guaxupé Nappe, SE Brazil. The address for the corresponding author was captured...charnockitic leucosomes of the Socorro-Guaxupé Nappe, SE Brazil Brenda Chung Rocha a,b*, Renato Moraes a, Andreas...Rua do Lago, 562, CEP 05508-080, São Paulo, SP, Brazil PT Departamento de Mineralogia e Geotectônica...for the Socorro-Guaxupé Nappe (SGN) in southeast Brazil. This multi-technique approach is used to CE |  | Giuliani, G., France-Lanord, C., Zimmermann, J. L., Cheilletz, A., Arboleda, C., Charoy, B., Coget, P., Fontan, F., Giard, D. (1997) Fluid Composition, δD of Channel H2O, and δ18O of Lattice Oxygen in Beryls: Genetic Implications for Brazilian, Colombian, and Afghanistani Emerald Deposits. International Geology Review, 39 (5) 400-424 doi:10.1080/00206819709465280 | Journal (article/letter/editorial) | | granitic pegmatites and greisens and emerald from Brazil, Colombia, a n d Afghanistan. An i m p o r t a...contrasting and restricted ranges of δ18O values. In Brazil, emeralds related to pegmatites have a systematic...composition of the hydrother mal fluid. Relative to Brazil, the δ18O of Colombian and Afghanistani emeralds...18O-rich sedimentary or metasedimentary rocks. In Brazil, the δD composition of channels in emerald and...1992) and emerald from the Porangatu deposit in Brazil (Fallick and Barros, 1987) and the Swat deposit |  | | Journal (article/letter/editorial) | | emerald mines in Colombia are becoming depleted. Brazil currently accounts for approximately 10% of world...export values of emerald rough (Zwaan et al., 2005). Brazil currently accounts for approximately 10% of world...Valley) as being related to the intrusion of tourmaline-bearing leucogranite into serpentinite bodies...the development of albite, muscovite, biotite, tourmaline, and pyrite. Fluid inclusions in the emeralds...Mn2+ Fe2+ Na+ K+ Cs+ 28. Brazil (Gavrilenko and Pérez, 1999). 29. Brazil, Santa Terezinha (Gavrilenko |
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