 | Cabral, Alexandre Raphael, Zeh, Armin, Viana, Nívea Cristina da Silva, de Castro, Marco Paulo, Laufek, František, Lehmann, Bernd, Queiroga, Gláucia (2019) Alabandite (MnS) in metamorphosed manganiferous rocks at Morro da Mina, Brazil: palaeoenvironmental significance. European Journal of Mineralogy, 31 (5) 973-982 doi:10.1127/ejm/2019/0031-2879 | Journal (article/letter/editorial) | | metamorphosed manganiferous rocks at Morro da Mina, Brazil: palaeoenvironmental significance Alexandre Raphael...de Minas Gerais (UFMG), Av. Antônio Carlos 6.627, 31270-901 Belo Horizonte, Minas Gerais, Brazil *Corresponding...Carlos 6.627, 31270-901 Belo Horizonte, Minas Gerais, Brazil 3 Institut für Angewandte Geowissenschaften...36400-000 Conselheiro Lafaiete, Minas Gerais, Brazil 5 Departamento de Geologia, Escola de Minas, Universidade...Morro do Cruzeiro, 35400-000 Ouro Preto, Minas Gerais, Brazil 6 Czech Geological Survey, Geologická 6 |  | Cabral, Alexandre Raphael, Zeh, Armin, da Silva Viana, Nívea Cristina, Schirmer, Thomas, Lehmann, Bernd (2017) Graphite–(Mo,W)S2 intergrowth as a palaeoenvironmental proxy in metasedimentary rocks. Lithos, 294. 412-417 doi:10.1016/j.lithos.2017.10.007 | Journal (article/letter/editorial) | | Lehmann6 SC Geociências, Universidade Federal de Minas Gerais (UFMG), Av. Antônio Carlos 6.627, In collaboration...Av. MA 2 NU 31270-901 Belo Horizonte – MG, Brazil Institut für Angewandte Geowissenschaften – Mineralogie...Antônio Carlos 6.627, 31270-901 Belo Horizonte – MG, Brazil 4 Vale Manganês S.A., Rua Duque de Caxias s/n...s/n, Morro da Mina, 36400-000 Conselheiro Lafaiete AC – MG, Brazil 5 CE Institut für Technologie (KIT)...the Archaean Barbacena greenstone belt in Minas Gerais, Brazil. Our finding indicates that: (i) W is, like |  | | Journal (article/letter/editorial) | | brilliant red rhodonite mine near ConselheiroI-afaiete,Brazil hauebeen found in a manganese reachingthe mineral...magnesium and iron. DTTRODUCTION The city of Conselheiro Lafaiete (20"40'S, 43'48'W) is located $out 100 km...south of Belo Horizonte in the interior of Minas Gerais, Brazil. It lies in the southem section of the Quadril6tero...Paleoproterozoic sediments. The area around Conrclheiro Lafaiete is part of the highly folded Barbacena Greenstone...primary manganeseminerals include spessartine, tephroite, rhodonite, pyroxmangite, neotocite, bementite |  | | Report (issue) | | (Franklin, New Jersey, USA); calcite, alleghanyite, tephroite, galaxite, grunerite, magnetite (Bald Knob, North..., Montana. At Morro da Mina, Conselheiro Lafaiete, Minas Gerais, Brazil, as gem crystals. In the Chiurucu |  | Nahon, Daniel, Beauvais, Anicet, Boeglin, Jean-Loup, Ducloux, Jacques, Nziengui-Mapangou, Pacome (1983) Manganite formation in the first stage of the lateritic manganese ores in Africa. Chemical Geology, 40 (1) 25-42 doi:10.1016/0009-2541(83)90089-x | Journal (article/letter/editorial) | | metamorphic parent rocks consist essentially of 65% tephroite, 20% spessartite garnet and 10% manganocalcite...are unweathered during the transformation of tephroite, manganocalcite and chlorite. These latter minerals...we deal only with the first transformation of tephroite, manganocalcite into manganite. Chlorite is replaced...Mn-oxyhydroxide + kaolinite. Pa ren t - m i n e r a l s Tephroite crystals are anhedral and tightly cemented into...I) yield the following average formula for the tephroite: [(8io.99 Alo.ol) 04] [Cr3*o.oolFe ~÷O.oloMnl |  | | Journal (article/letter/editorial) | | the traditional manganese ore districts of Minas Gerais, Brazil, prompted its suggestion as a timely Connoisseur’s...magnetite, willemite, franklinite, alleghanyite, tephroite, galaxite, bustamite, pyroxmangite, and sulfides...humites (alleghanyite, manganhumite, sonolite), tephroite, manganese carbonates, the spinels galaxite and...manganese mines and prospects at Conselheiro Lafaiete, Minas Gerais, Brazil. Good gem rough and specimens |  | Santos, Felipe Holanda dos, Amaral, Wagner da Silva, Konhauser, Kurt, Martins, Douglas Teixeira, Castro, Marco Paulo de, Queiroga, Glaucia Nascimento, Chi Fru, Ernest, Andersen, Morten B. (2021) Unraveling sedimentary precursors and metal enrichment of high-grade metamorphosed manganese-rich rocks from the Borborema Province, northeastern Brazil. Ore Geology Reviews, 137. 104283pp. doi:10.1016/j.oregeorev.2021.104283 | Journal (article/letter/editorial) | | rocks from the Borborema Province, northeastern Brazil Felipe Holanda dos Santos a, b, *, Wagner da Silva...Universidade Federal do Oeste do Pará, Santarém, PA, Brazil Departamento de Geologia e Recursos Naturais, Instituto...Universidade Estadual de Campinas, Campinas, SP, Brazil c Department of Earth & Atmospheric Sciences, University...Geologia, Escola de Minas, Universidade Federal de Ouro Preto, Ouro Preto, MG, Brazil e Centre for Geobiology...spessartine. The silicate manganese ore has rhodonite, tephroite and spessartine. Garnetite contains spessartine |  | | Journal (article/letter/editorial) | | thin layers or in islets or nests included in tephroite or other parent mineral. The garnet phase was...al., 1964). In lateritic weathering profiles in Brazil, birnessite appears as a sparsely developed secondary...secondary product in the Conselheiro Lafaiete area (Horen, 1953; Bittencourt, 1973; Melfi and Pedro, 1974)...metamorphic rocks containing spessartite in Bahia, Brazil (Frondel et al., 1960). In a soil environment,...by Sorem and Cameron (1960), and of West Africa, Brazil and France by Giovanoli and Perseil (1980). At |  | | Journal (issue) | | from the Morro da Mina mine, Conselheiro Lafaiete, Minas Gerais, Brazil . . . . . . . . . . . . . . ...canfieldite in his honor. He also visited iron mines in Brazil in 1890. He collected both scientifically and aesthetically...1963 Tennantite, Cornwall, England, no. 1978 Tephroite, Franklin, New Jersey, no. 1984 Terlinguaite/Montroydite...Rhodonite r e Morro da Mina Mine, Conselheiro Lafaiete, Minas Gerais, Brazil Peter Leverett Peter A Williams...red rhodonite found in a manganese mine near Conselheiro afaiete, ra il have been reaching the mineral |  | Shchipalkina, Nadezhda V., Pekov, Igor V., Chukanov, Nikita V., Biagioni, Cristian, Pasero, Marco (2019) Crystal chemistry and nomenclature of rhodonite-group minerals. Mineralogical Magazine, 83 (6) 829-835 doi:10.1180/mgm.2019.65 | Journal (article/letter/editorial) | | known as rhodonite and pyroxmangite), quartz, tephroite and manganese oxides. Later the name rhodonite...rhodonite from the Morro da Mina mine, Conselheiro Lafaiete, Minas Gerais, Brasil. The Mineralogical Record...17, 1–18. Russel, A. (1946) On rhodonite and tephroite from Treburland manganese mine, Alternum, Cornwall |  | | 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 (article/letter/editorial) | | 900 and 600 Ma. In tonnage, however, Urucum in Brazil and its extension, Mutun in Bolivia account for...Ashley, P.M., 1989, Geochemistry and mineralogy of tephroite-bearing rocks from the Hoskins manganese mine...Paleoproterozoic crust of the Sao Francisco craton, Bahia, Brazil: geodynamic features: Precambrian Research, v....ironstone beds and manganese-oxide deposits, SW Brazil and SE Bolivia: Journal of South American Earth...formations from the Urucum district, Mato Grosso do Sul, Brazil: ECONOMIC GEOLOGY, v. 99, p. 1233–1244. Kholodov |  | | Book (edition) | | Salinas, Peru, H Variscite, xx 5 mm, Iturnbiara, Brazil, H Rhodocbrosite, polished, 50 mm, Capillitas,... China, H Page 1: MuscO\ite. 45 mm, Linopolis, Brazil, H Page 2: Vivianite, I 00 mm, Huanzala, Bolivia...Ethiopia, G Page 12: Brazilianite, 35 mm, Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California...mine. Edwards. St. blue masses at Brumado Bahia, Brazil. At SchneeLawrenceco.. NewYork.andon LakeHarbour...Mts., Germany. ~n Au veins_at Mo1To Velho. Minas Gerais, Brazil. With tourmaline, muscovite-fuchsite,apatite |  | | Book | | Early Stages of Alterations (Transformation of Tephroite) 4.2.1.1.1. Stages of Mn(II)-smectite formation...manganese ores in India, West and Central Africa, and Brazil are associated with deposits of such type. 110...example, Moanda deposits, Republie of Gabon, in Brazil, and in other regions. 2.2.2. MODEL TEST AREA:...regions of Brazil, at the Consel- Manganese Ores in Weathering Crusts 117 heiro Lafaiete deposit (Buttencourt...Bahia (Basilio and Brondi, 1986), Miguel Congo, Minas Gerais (Barcelos and Büchi, 1986), Urucum, Corumba |  | | Journal (volume) | | at the forsterite genus: forsterite, fayalite, tephroite, liebenbergite, laihunite. Notes: asterisks after...of Sciences 129 Fig. 23. Flower. Chalcedony (Brazil). 2.4×9.0×7.7 cm. End of 20th – beginning of 21st...crystals from placer and bedrock deposits from Russia, Brazil, Namibia, South Africa, Indonesia, USA and Australia...placers in Indonesia (Kalimantan and Borneo islands), Brazil, Namibia, Australia (Bingara); Middle Urals and...FMM #11273 and FMM #11304). Diamond deposits in Brazil were discovered in the 18 th century (Smith, 1980) |  | | Book | | Watson, Trimble and Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized...KARIBIBITE LATIN AMERICA BRAZIL C6rrego do Urucum pegmatite, Galileia, Minas Gerais. The rare iron arsenite...KOSNARITE LATINAMERICA BRAZIL Genipapo [Jenipapo] district, Itinga, Minas Gerais. The very rare K-Zr phosphate...(Mitchell, 1977a). LATINAMERICA BRAZIL Barra do Salinas, Minas Gerais. Impressive specimens showing deep...in massive quartz (Cook. 2008d). Capelinha, Minas Gerais. Campo do Boa, near Capelinha, became a world-class |  | | Book | | ............. 57 The Porto Trombetas Bauxites, Brazil ............................... 58 Alteration Rate......................... 84 In the Mana us Area, Brazil .... .... ........ ... ..... ................................................ 119 The Lafaiete Deposit of Brazil .......................................ORSTOM C.P. 11 .348 05422-9 70 Sao Paulo (S.P.), Brazil BRUNO BOULANGE, lnstituto de Geociencias USP...ORSTOM C.P. 11.348 05422-970 Sao Paulo (S.P.), Brazil Centre de Geochimie de la Surface 1 Rue Blessig |  | | Book (edition) | | m (26 ft) thick at Urubu, near Araçuai, Minas Gerais, Brazil. Fine pink and green gem-quality tourmaline...acid members of the volcanic province in southern Brazil and Uruguay, and the fire opals occurring in small...amethyst from volcanic rocks in Rio Grande do Sul, Brazil. The amethyst crystals are more strongly coloured...Alluvial sands containing diamonds near Sopa, Minas Gerais, Brazil The above discussion has concentrated on...worldwide but some of the most important are in Brazil, where the gem-quality deposits are associated |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Connecticut. Luiz A. D. Menezes: Belo Horizonte, Minas Gerais, Brazil. William C. Metropolis: Mineralogical Museum...Potosi SLP Mato Grosso Sul MS Sinaloa SIN Minas Gerais MG ee abasco Tamaulipas Tlaxcala Veracruz...Wokitecas eel TMPS Tia VER YUC ZAC States, Brazil Acre Alagoas Amapa Amazonas Bahia Ceara Para... and Ecuador; Morro Velho mine, Nova Lima, MG, Brazil. sm DI:90, R:321, P&J:281, ABI:189, MR 13:323(1982)... Cauca, ABI:410. Bom Sucesso, near Serro, MG, Brazil. 8m DI:106, R:340, P&J:302, 1.2.1.2 Iridium Ir |  | | Journal (volume) | | Myanmar Emeralds from the Piteiras mine, Minas Gerais State, Brazil: genetic implications from fluid inclusion...Piteiras mine in Itabira is located in the Minas Gerais State, Brazil and produces gem quality emeralds. Ultramafic...property. “Gem-quality” alexandrite specimens from Brazil, India, Madagascar, Russia, Sri Lanka, and Tanzania...sources. Alexandrite samples from the Hematita mines (Brazil) have typically high Sn (up to 2294 ppm) concentrations...showing LA-ICP-MS data [ppm] for alexandrites from Brazil (BZ), Madagascar (MAD), Russia, Sri Lanka, and |
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