 | Cabral, Alexandre Raphael, Wiedenbeck, Michael, Rios, Francisco Javier, Seabra Gomes, Antônio Augusto, Rocha Filho, Orlando Garcia, Jones, Richard David (2012) Talc mineralisation associated with soft hematite ore, Gongo Soco deposit, Minas Gerais, Brazil: petrography, mineral chemistry and boron-isotope composition of tourmaline. Mineralium Deposita, 47 (4) 411-424 doi:10.1007/s00126-011-0374-3 | Journal (article/letter/editorial) | | with soft hematite ore, Gongo Soco deposit, Minas Gerais, Brazil: petrography, mineral chemistry and boron-isotope...at Gongo Soco, Quadrilátero Ferrífero of Minas Gerais, Brazil. The hematite–talc schist and soft hematite...Nuclear (CDTN/CNEN), 30123-970, Belo Horizonte-MG, Brazil A. A. Seabra Gomes Jr Gerência de Exploração Mineral...Lima-MG, Brazil O. G. Rocha Filho Rua Ceará, 1338/701, 30150-311, Belo Horizonte-MG, Brazil R. D. Jones... Gongo Soco . Quadrilátero Ferrífero . Minas Gerais . Brazil Introduction The supergene leaching of |  | | Journal (issue) | | Moore Recent discoveries of hydroxylherderite in Minas Gerais ..............................................R. P. Richards Famous mineral localities: the Ouro Preto topaz mines ...................................Ilha do Fundao 21.910 Rio de Janeiro, Brazil INTRODUCTION Brazil is world famous for its several occurrences...prized by collectors. These occurrences, all in Minas Gerais, are described below along with the specimens...du bassin superieur du Ribeirao Laranjeiras (Minas Gerais). Anais Academia brasileira Ciencias, 54, no |  | | Report (issue) | | Mineral Resources of the Congonhas District Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 290...the Departamento N acional da Produfao Mineral of Brazil under the auspices of the International Cooperation...Mineral Resources of the Congonhas District Minas Gerais, Brazil By PHILIP W. GUILD GEOLOGICAL SURVEY ...Departamento N acional da Produ~ao M,ineral of Brazil under the auspices of the International Cooperation...__________________ _ Iron region of central Minas Gerais _______________ _ Congonhas district_ ________________________ |  | | Report (issue) | | Cachoeira do Campo Dom Bosco, and Ouro Branco Quadrangles Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the International Cooperation...Cachoeira do Campo Dom Bosco, and Ouro Branco Quadrangles Minas Gerais, Brazil By ROBERT F. JOHNSON GEOLOGY...GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-B...the Departamento National da Producao Mineral of Brazil under the auspices of the International Cooperation |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph taken...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...Precious stones - Brazil I. Bartorelli, Andrea. II. Title. 09-10025 Cover photograph: Crystal of brazilianite |  | | Journal (article/letter/editorial) | | JULY-A UG UST O195 THE GEOLOGY OF CENTRAL MINAS GERAES, BRAZIL E. C. HARDER Washington, D.C. AND R. T...ores' of Minas Geraes may be classified as follows. SH. K. Scott, "The Iron Ores of Brazil," Jour. Iron...LXI, (1902), 248; O. A. Derby, "The Iron Ores of Brazil," Iron Ore Resources of the World, p. 313, Stockholm... Leith and E. C. Harder, "The Hematite Ores of Brazil and a Comparison with the Hematite Ores of Lake...Ores of Brazil," Econ. Geol., IX, (1914) ioi-iI; E. C. Harder, "The Iron Industry in Brazil," Bull. Am |  | | Journal (article/letter/editorial) | | HEMATITE ORES WITH OF HEMATITE C. I•. BRAZIL ORES LEITH AND OF AND E. A COMPARISON LAKE SUPERIOR... C. HARDER. The iron ores of the Minas Geraes district of Brazil are more nearly like the Lake Superioriron...SHOWING r• Fro. •o. •HADED AREA INDICATE8 GERAES• BRAZIl, THE • •O THE IRON ORE DISTRICT. KM, •e...showingthe situationof the zron ore district of Minas Geraes, Brazil. The districtis beingmappedfor the BrazilianGeological... HEMATITE examination of this field. ORES OF BRAZIL. 67 x We were able to confirm the essential |  | | Journal (article/letter/editorial) | | JanuarylFebruary: Tourmaline on quartz, Cruzeiro mine, Minas Gerais, Brazil. Los Angeles County Museum of Natural History...Colorado, 337, 382 Actinolite, Bahia, Brazil, 36 Agardite-(Y), Bahia, Brazil, 38 Agate, 259-67 Aikinite, Colorado...Albite. Maine, 4 12 Alexandrite, Hematitia, Minas Gerais, Brazil, 23 Almandine, Maine, 412 Alunite, Utah...225 Anatase, Bahia, Brazil, 3.5 Andalusite, Michigan, 96 Anhydrite, Bahia, Brazil, 39; Colorado, 397;...Bahia, Brazil, 38; Madagascar, 256; Michigan, 96; Ohio, 255 Aquamarine, Minas Gerais, Brazil, 19, 25 |  | | Report (issue) | | and Ore Deposits of the Alegria District, Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-J...the Departamento National da Producao Mineral of Brazil under the auspices of the Agency for International...District, Minas Gerais, Brazil By CHARLES H. MAXWELL GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-J Prepared in cooperation with the Departamento...Departamento National da Producao Mineral of Brazil under the auspices of the Agency for International Development |  | | Report (issue) | | Mineral Resources of the Barao de Cocais Area Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-H...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International...Area Minas Gerais, Brazil By GEORGE C. SIMMONS GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-H Prepared in cooperation with the Departamento...Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International Development |  | | Report (issue) | | Resources of the Pico de Itabirito District Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL Prepared...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International...District Minas Gerais, Brazil By ROBERTS M. WALLACE GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-F Prepared in cooperation with the Departamento...Departamento Nacional da Producao Mineral of Brazil under the au-spices of the Agency for International Development |  | | Journal (article/letter/editorial) | | a pasture site in the Amazon Basin (Rondônia, Brazil). The measurements were made during the late dry...(clean conditions) using a wet-annular denuder (WAD) in combination with a Steam-Jet Aerosol Collector...Alagoas, Alagoas, Brazil. 4 Instituto de Fı́sica, Universidade de São Paulo, São Paulo, Brazil. 5 Department...pasture site in SO2 4 southwest Amazonia (Rondônia, Brazil) [Trebs et al., 2004] during the LBA-SMOCC 2002...performed at a pasture site in the state of Rondônia, Brazil (Fazenda Nossa Senhora Aparecida (FNS), 104504400S |  | | Report (volume) | | .......................................... 183 Brazil.......................................................................................... 183 Minas Geraes districts..................................district..................................... Ouro Preto district.......................................through the ore body of the Pedras Pretas mine, Brazil... 32. Typical section of the manganese-bearing...manganese ore consumed in this country is imported from Brazil, India, and Cuba, smaller amounts being obtained |  | | Book | | mines being in the Madras area; in Brazil, from Diamantina, Minas Gerais; from South Africa in a number of...Cuba and from the Morro Velho gold mine, Minas Gerais, Brazil. Treatment. As for chalcopyrite. Acanthite...composition to joseite. Localities. From Minas Gerais, Brazil. Molybdenite MoS2 An important ore of molybdenum... Ives areas of Cornwall. Peru, Bolivia, Chile, Brazil, Japan and Mexico also provide excellent material...Localities. Bravoite is found in the vanadium ores at Minas Ragra, Peru; Derbyshire; Spain; Germany; Colorado |  | | Book | | crandallite from the Alto Benedeto pegmatite, Parai'ba, Brazil (by J.P. Cassedanne & L. Barreto) 22: 183-185 ALTO...Burian goyazite from [Alto Bernardino, Paraiba,] Brazil (by J. S. White, Jr.) 12:379 ALUMOHYDROCALCITE...and muscovite from the Ze Pinto prospect, Minas Gerais, Brazil 21:405-408 --with J.P. Cassedanne: Crystallized...Pitora, Minas Gerais, Brazil 21:409-412 --with J. P. Cassedanne: The Jaguara~u pegmatite, Minas Gerais, Brazil...and platinum from C6rrego Born Sucesso, Minas Gerais, Brazil 23:471-474 AMARGOSA DESERT Hydroboracite |  | | Journal (issue) | | , 71., 184 purpom poudts sity aM [P40 1m VAD om WAD | aque, SBUSeD Sey viep Koning 2 Springer 09-72...of the city of Sao Carlos, state of Sao Paulo, Brazil Nivea Adriana Dias Pons - Osni José Pejon Lazaro...was the city of Sao Carlos, state of Sao Paulo, Brazil (urban and expansion area). The data presented...Naturais, Universidade Federal de Itajuba, Itajuba, Brazil O. J. Pejon - L. V. Zuquette Departamento de Geotecnia...Geotecnia Universidade de Sao Paulo, So Carlos, Brazil N. A. D. Pons (© Campus Prof. José Rodrigues Seabra |  | | Book (chapter) | | magnetite = magnetite, Egleston 235 (1892). ochreous wad = asbolane ± pyrolusite ± manganite ± romanèchite...Ochrolith = nadorite, AM 27, 653 (1942). ochry wad = asbolane ± pyrolusite ± manganite ± romanèchite...= quartz + yellow stain, Clark 505 (1993). oiro preto = palladinite, Atencio 5 (2000). oisanite (Delamétherie)...quartz (sandstone), AM 12, 391 (1927). ouatite = wad (pyrolusite ± manganite ± romanèchite ± cryptomelane)...745 (1996). ouro = gold, Zirlin 61 (1981). ouro branco = Pd-rich gold, CM 36, 888 (1998). ouro cinzento |  | | Journal (issue) | | Munlclplo Sao Sebastlno do Maranhao Im Norden von Minas Gerals, BrasUlen, Brelte des Stilcks 4 cm. Zurn...Herausgebers 445 Euklase von Santana do Encoberto, Minas Gerais, Brasilien Von Hermann BANK, Idar Oberstein...GLOCKER (1839) soll es bei Boa Vista und Capao in Minas Gerais, Brasilien, in Chloritschiefern vorkommen; GLOCKER...aber in Brasilien in Villarica (alter Name fi.ir Ouro Pre to) gefunden warden sein (nach LEVY 1837). Nach...gefundenes Vorkommen bei Santana do Encoberto in Minas Gerais, das eine grofiere Menge meist farblosen Materials |  | | Journal (article/letter/editorial) | | H. B. Green Mica in the Quartzites of Our0 Preto (Brazil). Ry H. GORCEIX (Juhrb. f.&!in., 1884. 1, Ref...containing quartzites and topaz, of the province of Minas GeraGs. The author has found a mica rich in chromium...a quartzite belonging to the same horizon at Ouro Preto. This bright green translucent mica (sp. gr....of the atmosphere this mineral is decomposed into wad with the following compo&ion :CaO. MnO. FeO. HzO |  | | Book (edition) | | Large spodumene crystal and cut gemstone from Brazil. Gemstones have been a source ofdelight and fascination...in Habachtal and Egypt (fig 4). Exploration of Brazil has revealed gem deposits especially rich in topaz...Kalimantan (Borneo). Diamonds were then discovered in Brazil, which became the leading supplier as Indian production...beautifully-formed hexagonal crystals (fig 46). Brazil is the most abundant source of aquamarine, but...in rose quartz, and aluminium in smoky quartz. Brazil is the most important source of these varieties |  | | Book | | vivianite 69, 70 voltaite 62 vonsenite 53 vulpinite 55 wad 34, 35 wavellite 71, 73 wernerite 114 witherite 46...centuries that other deposits were found in Brazil (Minas Gerais) and South Africa (Transvaal, along the...greenish-yellow colour occur in Espirito Santo in Brazil. ln the United States it is found in peg1natites...other localities. J.1ultiple twinned chrysoberyl. Brazil or1111d11111 in ::oisite icl,.. A1t lv/atabatu...has caused the1n to be called specular, found in Brazil. In the United States, the Mesabi Range of Minnesota |  | | Book | | mining developments in Chile, Peru, Mexico, and Brazil, addressing such topics as the economic dimensions...on the horizon in Mexico and Peru and later in Brazil. Metaphorically, the hunt for Ophir’s riches continued...remainder of the colonial period. Mining came later to Brazil. Indians there had no metallurgical tradition,...from São Paulo discovered the golden riches of Minas Gerais. Indigenous Mining and Metallurgy In the Andes...ingots. Clandestine trade with the Portuguese in Brazil also offered untaxed silver another outlet. It |  | | Journal (volume) | | Deposits in the Carajás Mineral Province, Pará State, Brazil Rosaline Figueiredo e Silva, Lydia Maria Lobato...educated Dutch geologist and permanent resident of Brazil with an M.Sc. degree in metamorphic geology, under...in the Espinhaço Range and has worked widely in Brazil and shield South America, mainly on exploration...geologic, mineral resources, and geotectonic map of Brazil, published in 4 sheets and in DVDGIS format with...degree in geology from the Federal University of Minas Gerais in 2002, with project focus on the Engenho D´Água |  | | Book | | iron oxides in the form of ochre, and manganese wad. Hot-spring waters also often Above: Spectacular...Lubrication is by means of a watersoaked cloth or wad of cotton wool, which should be held gently against...used. The best vehicle, however, is the cotton wool wad. Polish each of the twenty-four facets on the plastic...a comparatively new gem material, discovered in Brazil in 1944. Most rough material offered for sale is...Lazulite. Apart from the very small crystals from Brazil, the majority of this material is only suitable |  | | Book | | Pyrénées. Les variétés gemmes viennent surtout du Minas Gerais (Brésil) et du Sri Lanka. La sillimanite se...filons hydrothermaux : Brésil (Minas�������������� ������������� Gerais), Portugal (Panasqueira), Canada...(Casapalca, Pérou) Apatite bleue sur quartz (Minas Gerais, Brésil) 77 Apophyllites Reconnaître les...sans parler des minerais de manganèse terrestres (« wad », « asbolane »). 1,5 (également variable) Étymologie...ces minéraux. Birnessite et Vernadite Variétés : wad, asbolane 91 Béryl Variétés : émeraude, aigue-marine |
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