 | | Report (issue) | | the Departmento National da Produ^ao Mineral of Brazil under the auspices of the Agency for International...Ferrifero, Minas Gerais, Brazil By NORMAN HERZ REGIONAL GEOLOGY OF THE QUADRILATERO FERRIFERO, MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL Prepared in cooperation with the Departmento Nacional da Produqao...Produqao Mineral of Brazil under the auspices of the Agency for International Development of the United...Ferrifero, Minas Gerais, Brazil. (Regional geology of the Quadrilatero Ferrifero, Minas Gerais, Brazil) (Geological |  | de Souza, J. L., Mendes, J. C., da Silveira Bello, R. M., Svisero, D. P., Valarelli, J. V. (1992) Petrographic and microthermometrical studies of emeralds in the ‘Garimpo’ of Capoeirana, Nova Era, Minas Gerais State, Brazil. Mineralium Deposita, 27 (2) 161-168 doi:10.1007/bf00197103 | Journal (article/letter/editorial) | | the 'Garimpo' of Capoeirana, Nova Era, Minas Gerais State, Brazil J.L. de Sonza ~, J. C. Mendes 1, S...Preto, Ouro Preto, Minas Gerais, Brazil 2 IG, Universidade de S~o Paulo, S~o Paulo, Brazil Received: November...the area of the Capoeirana emerald deposit, Minas Gerais State, revealed two main lithostructural units...the extent of a emeraldiferrous province in Minas Gerais State, which begins at northern Rio Casca and...terms - are represented by the mineral deposit of Itabira, discovered in 1978 S _ . . ~.~C/L~ -~4~ I~ |  | | Journal (article/letter/editorial) | | Relations in Iron Ores from the Iron Quadrangle, Brazil: The Correlation of Oxygen Isotope Variations with...hematite-rich ore bodies in the Iron Quadrangle, Brazil. The area studied can be divided into two different...peak metamorphic conditions of the Proterozoic Minas metamorphism 2,000 m.y. ago. Iron ores which have...quartz iron formations - known as itabirites in Brazil - appears to have been a dominant process in the...such as those found in the Iron Quadrangle, Minas Gerais, Brazil. While these ores comprise only a few per |  | | Journal (article/letter/editorial) | | evolution of the Quadrilfitero Ferrifero, Minas Gerais, Brazil Farid Chemale Jr.a, Carlos A. RosiCreb and...Sa’oLeopoldo, RS, Brazil bCentro de Pesquisas M. T. da Costa/IGC, UniversidadeFederal de Minas Gerais. Pampulha...Pampulha, 31270-000 Belo Horizonte, MC, Brazil ‘Departamento de Geologia, UniversidadeFederal de Ouro Preto...Preto. Morro do Cruzeiro, 35400-000 Ouro Preto, MG, Brazil Received February 3, 1992; revised version accepted...regional synclines in the overlying Rio das Velbas and Minas supergroups strata. Such regional synclines are |  | | Journal (article/letter/editorial) | | in layered intrusions: a comment, 757 Aplite, cordierite in felsic igneous rocks: a synthesis, 311 Argon...Arsenopalladinite, from the Cau~ iron mine, Itabira District, Minas Gerais, Brazil, 455 ARSLAN,M., 750 ATUERTON, M...R.J., 570 BRAZIL, palladium minerals from the Cau8 iron mine, Itabira District, Minas Gerais, 455 BRIGATrl...mineral from Fuka, Okayama Prefecture, Japan, 545 Cordierite, in felsic igneous rocks: a synthesis, 311; local...kornerupine, stable coexistence of, 327 Granite, cordierite in felsic igneous rocks: a synthesis, 311; enclaves |  | da Costa, Geraldo Magela, de Oliveira Polli, Gabriel, Kahwage, Márcio A., de Grave, Eddy, Sabioni, Antônio Claret Soares, Mendes, Júlio Cesar (2006) The effect of thermal treatment on the 57Fe Mössbauer spectrum of beryl. Physics and Chemistry of Minerals, 33 (3) 161-166 doi:10.1007/s00269-006-0064-3 | Journal (article/letter/editorial) | | Universitário- Morro do Cruzeiro, 35400, Ouro Preto, MG, Brazil E-mail: magela@iceb.ufop.br Tel.: +55-31-35591708...Universidade Federal de Ouro Preto (MG), Ouro Preto (MG), Brazil E. de Grave Department of Subatomic and Radiation...Universidade Federal de Ouro Preto (MG), Ouro Preto (MG), Brazil Introduction Beryl is a cyclosilicate with the...rocks (Itabira and Santa Maria de Itabira) located on northeast and central-east of the Minas Gerais State...State in Brazil. Homogeneous crystals less than 5 cm long were cut into smaller pieces for the heating experiments |  | | Report (issue) | | Igneous Rocks of the Quadrilatero Ferrifero, Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 641-B...the Departmento Nacional da Producao Mineral of Brazil under the auspices oj the Agency for International...Ferrifero, Minas Gerais, Brazil By NORMAN HERZ REGIONAL GEOLOGY OF THE QUADRILATERO FERRlFERO, MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 641-B Prepared in cooperation with the Departmento...Departmento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International Development |  | | Journal (article/letter/editorial) | | La Gallega, Ojdn, Mdlaga, chromite (picotite), cordierite, nickeline, I93 La Guia, Vigo, astrophyllite...Jarales, Carratraca, Mdlaga, chromite (picotite), cordierite, nickeline, 193 Monte Galineiro, Vigo, astrophyllite...futile, sapphirine, hypersthene, biotite, garnet, cordierite, hercynite, plagioclase, sillimanite, kornerupine... Sonora, cesbronite, 744; quetzalcoatlite, 26i Brazil Igarapd Jornal, Serra do Navio, Amapd, nigerite... cassiterite, tourmaline, gahnite, 837 Itabira, Minas" Gerais, arsenopalladinite, atheneite, isomertieite |  | Qiao, Xin, Zhou, Zhengyu, Schwarz, Dietmar Theodor, Qi, Lijian, Gao, Jiaxin, Nong, Peizhen, Lai, Meng, Guo, Kaipeng, Li, Yingbo (2019) Study of the Differences in Infrared Spectra of Emerald from Different Mining Areas and the Controlling Factors. The Canadian Mineralogist, 57 (1) 65-79 doi:10.3749/canmin.1800042 | Journal (article/letter/editorial) | | coordination to cations of water molecules in beryl and cordierite. This study compares the IR spectroscopic characteristics...area); Brazil, Carnaiba Socoto (CS); Brazil, Santa Terezinha (ST); Brazil, Minas Gerais Itabira (I); Afghanistan...(CS) Santa Terezinha (ST) Santa Terezinha (ST) Itabira (I) 1.45 0.23 0.19 0.61 0.67 0.53 10.14 3 3.88...Colombia Brazil Bahia Brazil Bahia Brazil Goias Brazil Goias Brazil Minas Gerais Em0109 Brazil Minas Gerais...Gerais Em0124 Afghanistan Itabira (I) 0.45 5.50 3 4.42 3 2.61 Very light green Faceted Panjshir Valley |  | Lobato, Lydia Maria, Ribeiro-Rodrigues, Luiz Cláudio, Zucchetti, Márcia, Noce, Carlos Maurício, Baltazar, Orivaldo Ferreira, da Silva, Luiz Carlos, Pinto, Claiton Piva (2001) Brazil's premier gold province. Part I: The tectonic, magmatic, and structural setting of the Archean Rio das Velhas greenstone belt, Quadrilátero Ferrífero. Mineralium Deposita, 36 (3) 228-248 doi:10.1007/s001260100179 | Journal (article/letter/editorial) | | signi®cant Archean greenstone-belt successions in Brazil, in both their appreciable mineral productivity...fero (Iron Quadrangle) region, Minas Gerais state, southeastern Brazil, which occupies the southernmost...Federal de Minas Gerais, Av. AntoÃnio Carlos 6627, Pampulha, Belo Horizonte, Minas Gerais 31270-901,... Brazil E-mail: lobato@dedalus.lcc.ufmg.br Fax: +55-31-4995410 L.C. Ribeiro-Rodrigues FAPEMIG Bursary...Escola de Minas, Universidade Federal de Ouro Preto, Morro do Cruzeiro, Ouro Preto, Minas Gerais 35400-000 |  | Silveira Braga, Flávia Cristina, Santos, João Orestes Schneider, Rosière, Carlos Alberto, Rolim, Vassily K., Roberts, Malcolm P., Evans, Noreen J., Hagemann, Steffen G. (2020) Ediacaran-Cambrian far-field hydrothermal event in the southeast of the São Francisco Craton, Brazil: Evidence from zircon U-Pb SHRIMP, trace elements, Lu-Hf and oxygen isotopes. Lithos, 356. 105365 doi:10.1016/j.lithos.2020.105365 | Journal (article/letter/editorial) | | event in the southeast of the São Francisco Craton, Brazil: Evidence from zircon U-Pb SHRIMP, trace elements...event in the southeast of the São Francisco Craton, Brazil: Evidence from zircon U-Pb SHRIMP, trace elements...event in the southeast of the São Francisco Craton, Brazil: evidence from zircon U-Pb SHRIMP, trace elements...Geociências, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil b Faculdade de Engenharia, Universidade...Universidade do Estado de Minas Gerais, João Monlevade, MG, Brazil c Universidade do Estado do Amazonas |  | | Journal (issue) | | Alexandrite from the Pegmatite Districts of Minas Gerais, Brazil Keith Proctor 33 Faceting Large Gemstones...alexandrites near the town of Hematita in Minas Gerais, Brazil; in less than three months in 1987, more...aquamarine, like the material from Coronel Murta (Brazil) and Tongafeno (Malagasy Republic). As we have...axis. Even stronger pleochroism is observed in cordierite (iolite, figure 4))where the Fe2++Fe3+ charge... Figure 4. This diagram shows the structure of cordierite (iolite), viewed down the c-axis, as i t relates |  | El Ghorfi, Mustapha, Oberthür, Thomas, Melcher, Frank, Lüders, Volker, El Boukhari, Abdelmajid, Maacha, Lhou, Ziadi, Rachid, Baoutoul, Hssain (2006) Gold–palladium mineralization at Bleïda Far West, Bou Azzer–El Graara Inlier, Anti-Atlas, Morocco. Mineralium Deposita, 41 (6) 549-564 doi:10.1007/s00126-006-0077-3 | Journal (article/letter/editorial) | | Common to all Au–Pd mineralizations worldwide (Brazil, Australia, UK), including Bleïda Far West, is...tuffs, chlorite schists, sericite schists, and cordierite schists of sedimentary and volcanic origin, and...respectively) of palladseite from the Cauê mine, Minas Gerais, Brazil. Merenskyite (PdTe2) was found in two samples...gold mineralization in banded iron formation in Brazil, and this type of mineralization was regarded as...as unique and was restricted to deposits in Brazil (e.g., Gehlen 1811; Hussak 1904; Clark et al. 1974; |  | | Book | | 1982 Jules Roger Sauer ” Foreword For years Brazil has been the major producer of colored stones in...metamorphic rocks, the variety of gem deposits in Brazil is almost infinite. In addition to the mineral...assemblage one might expect from pegmatite dikes, Brazil also produces a very significant output of diamonds...written in English, and beautifully illustrated. “Brazil, Paradise of Gemstones’, by Jules Roger Sauer,...Century. The book is a showcase ofthe best from Brazil and it makes a handsome evocation of what is beautiful |  | Trumbull, R. B., Garda, G. M., Xavier, R. P., Cavalcanti, J. A. D., Codeço, M. S. (2019) Tourmaline in the Passagem de Mariana gold deposit (Brazil) revisited: major-element, trace-element and B-isotope constraints on metallogenesis. Mineralium Deposita, 54 (3) 395-414 doi:10.1007/s00126-018-0819-z | Journal (article/letter/editorial) | | Tourmaline in the Passagem de Mariana gold deposit (Brazil) revisited: major-element, trace-element and B-isotope...geological arguments, we favor a source in the Minas Supergroup metasedimentary units hosting the deposit...Keywords Gold deposits . Quadrilátero Ferrífero . Minas Gerais . Boron isotopes . Trace elements Introduction...Geociências, Universidade de São Paulo, São Paulo, Brazil 3 Instituto de Geociências, Universidade Estadual...Campinas, São Paulo, Brazil 4 Serviço Geológico do Brasil (CPRM), Belo Horizonte, MG, Brazil tourmaline (Fig |  | | Journal (article/letter/editorial) | | BURKE (E. A. J.), Tantal-aeschynite from Borborema, Brazil, 57I Afwillite, Ireland, stability of, decomposition...Donegal, Ireland, staurolite, 672 Arsenopalladinite, Brazil, anal., opt., hardness, X-ray, 528 ASARI (T.)...opt., isomorphous substitutions in, 97 Atheneite, Brazil, anal., opt., hardness, X-ray, 528 Augite, composition... E.), Palladium arsenide-antimonides from Itabira, Brazil, 528 Clinoamphibole, Ghana, anal., opt., 224;...684 Copiapite, Durham, 244 Copper, Durham, 244 Cordierite, Spain, anal., 193; Uganda, anal., 42o; Western |  | | Journal (issue) | | 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,...Junior (BC Gemas do Brasil, Governador Valadares, Brazil), and heating to 500°C in air was successful in...it is likely to have been Rio Grande do Sul in Brazil, well known for its amethyst, agate and jasper...Trade in Brazil: A Brief History and Current Status Aurélien Reys Coloured stones from Brazil have been |  | Karampelas, Stefanos, Al-Shaybani, Bader, Mohamed, Fatima, Sangsawong, Supharart, Al-Alawi, Abeer (2019) Emeralds from the Most Important Occurrences: Chemical and Spectroscopic Data. Minerals, 9 (9) 561 doi:10.3390/min9090561 | Journal (article/letter/editorial) | | emeralds from the most important sources (Afghanistan, Brazil, Colombia, Ethiopia, Madagascar, Russia, Zambia...Zimbabwe). It revealed that emeralds from Afghanistan, Brazil, Colombia and Madagascar have a relatively lower...cm−1 band (with some samples from Afghanistan, Brazil and Russia presenting equal relative intensities)...central Cordillera), Zambia (Kafubu), Brazil (Itabira, Minas Gerais), Russia (Malyshevsk, the Ural mountains)...the c-axis) and fifteen were faceted (all from Brazil). Most of the samples studied had a green or dark |  | Justo, Ana Paula, Dantas, Elton Luiz, Bau, Michael, Freitas-Silva, Flávio Henrique, Santos, Roberto Ventura, Schorscher, Johann Hans Daniel (2020) Paleobasinal to band-scale REE + Y distribution in iron formations from Carajás, Amazon Craton, Brazil. Ore Geology Reviews, 127. 103750pp. doi:10.1016/j.oregeorev.2020.103750 | Journal (article/letter/editorial) | | Iron Formations from Car‐ ajás, Amazon Craton, Brazil Ana Paula Justo, Elton Luiz Dantas, Michael Bau...in Iron Formations from Carajás, Amazon Craton, Brazil, Ore Geology Reviews (2020), doi: https://doi.org/10...in Iron Formations from Carajás, Amazon Craton, Brazil Ana Paula Justoa,b*, Elton Luiz Dantasa, Michael...Universidade de Brasília, Brazil; bServiço Geológico do Brasil, São Paulo, Brazil; cDepartment of Physics...Universidade de São Paulo, Brazil *Corresponding author: Geological Survey of Brazil (CPRM/SGB), Superintendência |  | | Journal (article/letter/editorial) | | tomagnetite inclusions andmaybeformed fero,Minas Gerais, Brazil(DorrandBarboa, 1963; andshape of magnetite...iron-formation. It seemshighly changecouldoccur cordierite-microclineassemblagein Yekepa Super- unlikelythat...Quadrangles, Minas Berge, J. W., 1.968,A proposedstructuraland stratigraphic Gerais, Brazil: U.S. Geol...district, Minas Gerais, Brazil: U.S. ore depositsof the Itabira district, Minas Gerais,Brazil:' Geol. Survey |  | | Journal (issue) | | Era, Minas Gerais, Brazil David Stanley Epstein NOTES AND NEW TECHNIQUES The Growth of Brazil-Twinned...Potential for Synthetic Amethyst Twinned on the Brazil Law John I. Koivula and Emmanuel Fritsch Thermal...LCCAdams, Orleans, MA; Luiz Angelo, Rio de Janeiro, Brazil; Trea Arendsen, Lansing, MI; Scott M. Azmus, Corvallis...Morris, Newark, CA; Francisco Muller Bastos, Minas Gerais, Brazil; Colleen Witthoeft Nayuki, Montreal, Que...Gem-Bearing Pegmatites: A Review Gem Pegmatites of Minas Gerais, Brazil: Exploration, Occurrence, and Aquamarine |  | | Journal (issue) | | APRIL 1993 Cover Picture The Hematita mine in Minas Gérais in 1987 - probably the richest alexandrite...deposits of alexandrite, cat's-eye and chrysoberyl in Brazil' pp. 333-54) ISSN: 0022-1252 F.G.A. your key...deposits of alexandrite, cat's-eye and chrysoberyl in Brazil JacquesCassedanne, Cassedanne, D.Sc.,* Maurice...Fundiio, Fundão, 21,910, Rio de Janeiro, Janeiro, Brazil *Institute of Geosciences UFRJ-CNPq, Cidade Universitaria...Ipanema, 22,410, 22,410, Rio de Janeiro, Janeiro, Brazil **Maurice Roditi Jewellers, distinguished: Abstract |  | | 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 |  | | Report (volume) | | Pernambuco, Recife, Brazil J. S. BETTENCOURT Universidade de Sao Paulo, Brazil C. P. DE CAMPOS Lud...FERREIRA Federal University of Pernambuco, Recife, Brazil 2011 Published by The Geological Society London...(Iran), Asia (Japan and China) and South America (Brazil and Argentina) and spanning rocks from Palaeoproterozoic...–Cambrian granitic magmatism in the Araçuaı́ orogen (Brazil), the Eastern Brazilian Pegmatite Province and...7852, Cidade Universitaria, 50670-000 Recife, PE, Brazil 2 Institute of Geosciences, University of São |  | Sánchez-Muñoz, Luis, Müller, Axel, Andrés, Sol López, Martin, Robert F., Modreski, Peter J., de Moura, Odulio J.M. (2017) The P–Fe diagram for K-feldspars: A preliminary approach in the discrimination of pegmatites. Lithos, 272. 116-127 doi:10.1016/j.lithos.2016.10.030 | Journal (article/letter/editorial) | | AC CE P ABSTRACT Governador Valadares, Minas Gerais, Brazil. TE g D a RI Peter J. Modreskif, Odulio...blue tourmaline-rich pegmatites in RI Paraiba (Brazil) and in the Cooper Mountain and Casper Mountain...examples are most of the pegmatites of Minas Gerais in Brazil, formed during the Braziliano TE D Orogeny...character. It contains unusual large masses of cordierite (Heinrich, 1950) and abundant secondary muscovite...fractionation in the Borborema Province, Northeastern Brazil. Mineralium Deposita 43, 207-228. ACCEPTED MANUSCRIPT |
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Itabira, Minas Gerais, Brazil