 | | Journal (article/letter/editorial) | | altered chromitites of the Campo Formoso layered intrusion (Bahia State, Brazil): control by magmatic and...hydrothermal metasomatism in chromitites of the Campo Formoso layered intrusion produced spectacular chromite...stable at low temperature. The Campo Formoso layered intrusion of Brazil provides a useful example for...chromitite layers from one of the deposits of Campo Formoso (Cascabullhos), and emphasized the similarity...exposed in the mines of Cascabulhos, Pedrinhas, Limoeiro, and Mato Limpo. The principal aim of this investigation |  | | Journal (article/letter/editorial) | | the Northern Edge of the São Francisco Craton, Brazil Vitor Bandeira Martins Matos* and Cesar Fonseca...Brasília, Brasília, Distrito Federal 70910-900, Brazil Abstract The Caboclo dos Mangueiros deposit, the...recent discovery of Ni-Cu sulfide mineralization in Brazil, has estimated resources of 200 million tonnes...window for exploration for Ni-Cu-PGE sulfides in Brazil. Introduction Ni-Cu-platinum group element (PGE)...Caraíba, S/N, Distrito Pilar, Jaguarari, Bahia 48967-000, Brazil. ISSN 0361-0128; doi: 10.5382/econgeo |  | | Journal (article/letter/editorial) | | Economic Geology, v. 108, pp. 1753–1771 The Limoeiro Deposit: Ni-Cu-PGE Sulfide Mineralization Hosted...Conduit in the Borborema Province, Northeastern Brazil Jonas Mota-e-Silva,1,2,† Cesar Fonseca Ferreira...01037-912, Brazil 2 Instituto de Geociências, Universidade de Brasília, Brasília, DF. 70910-900, Brazil Abstract...Abstract The Limoeiro deposit, located in a high-grade mobile belt of the Brasiliano orogenic cycle (650–500...age of the ultramafic intrusion that hosts the Limoeiro deposit is not yet known, but regional geologic |  | Mota-e-Silva, J., Prichard, H. M., Filho, C. F. Ferreira, Fisher, P. C., McDonald, I. (2015) Platinum-group minerals in the Limoeiro Ni–Cu–(PGE) sulfide deposit, Brazil: the effect of magmatic and upper amphibolite to granulite metamorphic processes on PGM formation. Mineralium Deposita, 50 (8) 1007-1029 doi:10.1007/s00126-015-0585-0 | Journal (article/letter/editorial) | | Platinum-group minerals in the Limoeiro Ni–Cu–(PGE) sulfide deposit, Brazil: the effect of magmatic and...Springer-Verlag Berlin Heidelberg 2015 Abstract The Limoeiro Ni–Cu–(platinum-group elements (PGE)) deposit...igneous tubular conduit system in northeastern Brazil. Representative ores from the deposit have been...13212-161, Brazil 2 Instituto de Geociências, Universidade de Brasilia, Brasília, DF 70900-970, Brazil 3 ...blebs that formed and were transported within the Limoeiro magma conduit. Keywords Platinum-group-minerals |  | Mota-E-Silva, Jonas, Prichard, Hazel M., Suárez, Saioa, Ferreira Filho, Cesar F., Fisher, Peter C. (2016) Supergene Alteration of Platinum-Group Minerals and the Formation of Pd-Cu-O and Pd-I-O Compounds In the Limoeiro Ni-Cu-(PGE) Deposit, Brazil. The Canadian Mineralogist, 54 (3) 755-778 doi:10.3749/canmin.1500049 | Journal (article/letter/editorial) | | Pd-Cu-O AND Pd-I-O COMPOUNDS IN THE LIMOEIRO Ni-Cu-(PGE) DEPOSIT, BRAZIL JONAS MOTA-E-SILVA Votorantim Metais...05423-180, Brazil University of Brasilia, Geosciences Institute, Brası́lia/DF, 70900-970, Brazil HAZEL M...Geosciences Institute, Brası́lia/DF, 70900-970, Brazil PETER C. FISHER School of Earth and Ocean Science...weathering of platinum-group minerals (PGM) in the Limoeiro nickel-copper and platinum-group element [Ni-Cu-(PGE)]...Pyrrhotite with smaller equal proportions of chalcopyrite and pentlandite and minor PGM are typical of |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...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...Landmann. CDD-549 Indexes for systematic catalog: 1. Brazil: Minerals and precious stones: Mineralogy and gemology |  | 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) | | 941 CEP 30123-970, Belo Horizonte, Minas Gerais, Brazil 2 Instituto de Geociências, Universidade de Brasília...3173 CEP 30140-970, Brasília, Distrito Federal, Brazil 3 Department of Subatomic and Radiation Physics...Preto, CEP 35400-000 Ouro Preto, Minas Gerais, Brazil 5 Companhia Vale do Rio Doce, CVRD, BR 262-Km 296...Box 09 CEP 33010-970, Santa Luzia, Minas Gerais, Brazil ABSTRACT Infrared (IR) spectra in the OH stretching...hydrothermal deposits in the state of Minas Gerais, Brazil. In the magmatic environment, samples of tourmaline |  | | Book | | born hills appear parallel to Mahagiri range due to mine-waste dumping. Unpaved roads serve the movement...The sky is gloomy throughout the day due to the mine and road dust. Social evils, crime, alcoholism,...education, counseling, and training. Making stringent mine-safety rules is not the solution—it has to be implemented...Ore Group Orissa Mining Corporation Limited Run of Mine Reconnaissance Permit tonnes tonnes per annum/day...4.3 Bornite 1.3.4.4 Chalcocite 1.3.4.5 Chalcopyrite 1.3.4.6 Covellite 1.3.4.7 Cuprite 15 15 |  | Barkov, Andrei Y., Shvedov, Gennadiy I., Flemming, Roberta L., Vymazalová, Anna, Martin, Robert F. (2017) Melonite from Kingash and Kuskanak, Eastern Sayans, Russia, and the extent of Bi-for-Te substitution in melonite and synthetic Ni(Te,Bi)2–x. Mineralogical Magazine, 81 (3) 695-705 doi:10.1180/minmag.2016.080.119 | Journal (article/letter/editorial) | | NiTe2, named after its type locality, the Melones mine, at Carson Hill in the Mother Lode Belt, Calaveras...accessory constituent of the ore at the Robb-Montbray mine in northwestern Québec, Canada. Although melonite...697 sulfides (BMS: pyrrhotite, pentlandite, chalcopyrite, cubanite, bornite, millerite), arsenides (nickeline...intergrowths of melonite with altaite, hosted by chalcopyrite. The melonite solid-solution series at Kingash...melonite from: Stanislaus mine, California, USA (Pemberton, 1983); Strathcona mine (Rucklidge, 1969), Sudbury |  | | Journal (issue) | | York circulation manager Articles The Boltsbum mine, Weardale, County Duiham, England ................ Bariand Arsenate minerals of the Sterling Hill mine: an overview .....................................from the Virgem da Lapa district, Minas Gerais, Brazil. Sorbonne collec tion, photo by Nelly and Pierre...The Mineralogical Record Jan uary-February, 1982 mine Weardale, CpuntyJ)urham, England t h e B o l...1800’s, fine specimens have issuedfrom the Boltsburn mine and are still occasionally available today. W |  | | Journal (article/letter/editorial) | | Magmatism in the Northern Borborema Province, Northeast Brazil: Tectonic Setting and Potential for Deposits Alanielson...Brasília, 70910-900 Brasília, Distrito Federal, Brazil ABSTRACT Mafic-ultramafic intrusions form a 32-km-long...Piranhas terrane in the Borborema Province, Northeast Brazil. The mafic-ultramafic intrusions consist of wehrlite...Aguablanca deposit in Spain (Tornos et al. 2001). In Brazil, the potential for exploration in orogenic belts...Transversal Domain of the Borborema Province (Limoeiro deposit; Santos et al. 2014; Mota-e-Silva et al |  | | Journal (article/letter/editorial) | | “Eagle/Kalatongke Type” Troc Sul DD. “Nebo-Babel (Limoeiro) Type” - elongated funnel, flared dyke Plg ...boat-shaped layered intrusion, as at Fazenda Mirabela (Brazil) —disseminated layer up to 100 m thick, mined for...Eagle deposit (Michigan, USA) and the Kalatongke mine (Inner Mongolia, China). (D) Subhorizontal tube...chonolith, named after Nebo-Babel (Canada) and Limoeiro (Brazil). (E) Subhorizontal ‘fat ski’ chonolith, named...characteristic assemblage of pyrrhotite–pentlandite– chalcopyrite–platinum-group minerals (PGM). This assemblage |  | | Journal (article/letter/editorial) | | Pre-proofs The Luanga deposit, Carajás Mineral Province, Brazil: different styles of PGE mineralization hosted... The Luanga deposit, Carajás Mineral Province, Brazil: different styles of PGE mineralization hosted... The Luanga deposit, Carajás Mineral Province, Brazil: different styles of PGE mineralization hosted...70910-900, Brazil. ² VALE S/A, Av. Getulio Vargas, 671/13º, 30112-020, Belo Horizonte, MG, Brazil ³ Present...metal sulfides (pentlandite > pyrrhotite >>> chalcopyrite) located along the upper contact of the intrusion's |  | Barnes, Stephen J., Mole, David R., Hornsey, Richard, Schoneveld, Louise E. (2019) Nickel-Copper Sulfide Mineralization in the Ntaka Hill Ultramafic Complex, Nachingwea Region, Tanzania. Economic Geology, 114 (6) 1135-1158 doi:10.5382/econgeo.4677 | Journal (article/letter/editorial) | | (Finland) as an intermediate stage and Mirabela (Brazil) as the layered intrusion end member. Introduction...Maier et al., 2011), Mirabela, Brazil (Barnes et al., 2011c), Limoeiro, Brazil (Mota-e-Silva et al., 2011)...pentlandite. Abbreviations: amph = amphibole, Cp = chalcopyrite, Opx = orthopyroxene, Pn = pentlandite, Po =...sulfide mineralogy of pyrrhotite, pentlandite, and chalcopyrite, with minor pyrite and primary magnetite, and...some sulfide segregation veins show distinctive chalcopyrite-pyrite symplectites (Fig. 10C), interpreted |  | | Journal (article/letter/editorial) | | that Keith wandered around the neighboring gold mine dumps and developed an interest in minerals. He...found in 1967 in the Pioneira mine, Teofilo Otoni, Minas Gerais, Brazil. Downloaded by [Stockholm University...from the Barra de Salinas mine, Aracuai-Itinga district, Minas Gerais, Brazil. Although the owner did not...specializing in colored gemstones. Keith's travels in Brazil in search of gems and crystal specimens have added...from the Jonas mine in Brazil have sold for several hundred thousand dollars. A Jonas mine rubellite called |  | | Journal (article/letter/editorial) | | for the PGE-mineralized magmatism in Carajás, Brazil Eduardo Teixeira Mansur, Cesar Fonseca Ferreira...for the PGE-mineralized magmatism in Carajás, Brazil, LITHOS (2016), doi:10.1016/j.lithos.2016.09.036...constraints for the PGE-mineralized magmatism in Carajás, Brazil SC R IP Authors: Eduardo Teixeira Mansur¹ and...Universidade de Brasília, Brasília-DF, 70910-900, Brazil. email: etmansur@gmail.com 2 Instituto de Geociências...Universidade de Brasília, Brasília-DF, 70910-900, Brazil. email: cesarf@unb.br AC CE P TE D Corresponding |  | Le Vaillant, Margaux, Barnes, Stephen J., Mole, David R., Fiorentini, Marco L., Laflamme, Crystal, Denyszyn, Steven W., Austin, James, Patterson, Ben, Godel, Belinda, Hicks, John, Mao, Ya-Jing, Neaud, Antoine (2020) Multidisciplinary study of a complex magmatic system: The Savannah Ni-Cu-Co Camp, Western Australia. Ore Geology Reviews, 117. 103292 doi:10.1016/j.oregeorev.2019.103292 | Journal (article/letter/editorial) | | Australia (Maier et al., 2016), Mirabela and Limoeiro in Brazil (Barnes et al., 52 2011; Mota-e-Silva et...Intrusion until 2008 when the 122 Sally Malay Ni-Cu-Co mine was re-named Savannah. Here, we refer to the current...magmatic “breccia-textured” pyrrhotite-pentlandite-chalcopyrite rich 167 massive sulfides occurring within...176 to the north and north-west of the Savannah mine as a 1.25 km2 body of interlayered norite, 177...40-50 degree dip toward the NW. Within the Savannah mine area (Figure 273 2B,C,D), the TCG mostly passes |  | | Journal (issue) | | the Morro da Mina manganese mine, Conselheiro Lafaiete, Minas Gerais, Brazil. Probably the world’s finest...2008 issue for his article on the Mockingbird gold mine). Like the rest of us on the staff, he will be striving...minerals on DVD wilensky Mimetite, Pingtouling mine, Liannan Co., Guangdong, China. Wilensky Fine Minerals...which he has undertaken since 1969 in Minas Gerais, Brazil. Here he reviews some localities in the region...long-established contacts with Brazilian dealers and mine owners, I was able to see and photograph nearly |  | | Journal (article/letter/editorial) | | Ni-Cu-PGE deposit is the only past-producing nickel mine (1958–1974) in the Canadian Cordillera of British...pyrrhotite, pentlandite (+argentopentlandite), chalcopyrite, minor pyrite, troilite, and Pt-Pd-Ni bismuthotellurides...remains British Columbia’s only past-producing nickel mine (1958–1974), having produced ~4.2 Mt of ore with... Chinaman Pride of Emory Upper 4600 1900 ad mine ro 5481000 mN 5481000 mN R id ge 606500 mE...the Giant Mascot ultramafic suite along the upper mine road (Fig. 2). Deformation features of the Spuzzum |  | | Journal (issue) | | THE JOHN PARNAU COLLECTION REDLEDGEITE REDLEDGE MINE, NEAR WASHINGTON, CALIFORNIA. THIS MATERIAL WAS...Panasqueira, Portugal. See M. R. 2, 2, p. 73. The mine operators are now vending specimens although they...terminated crystal l by 4 cm) from the Dallas Gem mine, San Benito County, California. New veins of this...Conselheiro Pena, near Linopolis, Minas Gerais, Brazil. This is one of the specimens from the first (and...1.7 by 1 by 1 cm) Erupcion mine, Los Lamentos, Mexico. The Erupcion mine has produced far less wulfenife |  | | Journal (article/letter/editorial) | | post-entrapment diffusion on the solubility of chalcopyrite daughter crystals in natural quartz-hosted fluid...deposits at the periphery of the Zijinshan copper-gold mine, southeastern China—Bimin Zhang, Xueqiu Wang, Rong...the Qilinchang Zn-Pb-(Ag-Ge) deposit in the Huize mine district, northeastern Yunnan, China—Run-Sheng Han...magmatic suite in the Carajás mineral province, Brazil—Antonio Sales Teixeira, Cesar Fonseca Ferreira...Ruizhong Hu Characteristics of Cu isotopes from chalcopyrite-rich black smoker chimneys at Brothers volcano |  | | Journal (issue) | | Mulligan Peak (AZ) Purple Agate Collecting Quartz in Brazil Bob Jones’ 2014 Tucson Experience Birthstones...of brightyellow crystals is from the Cozzo Disi mine in Casteltermini (Sicily), Italy, and stands 19...Bob Farrar A quartz crystal-hunting adventure in Brazil Yellow menace, yellow masterpiece by Bob Jones...metals, it forms valuable metal sulfides, which we mine and process. Most major metals today are obtained...form near-surface deposits that are rich enough to mine. Primary minerals are the source of most metals |  | | Journal (article/letter/editorial) | | appeared relatively recently from the 2nd Sovetskiy mine, Dal’negorsk, Primorskiy Kray. It was represented... was obtained from a location in Minas Gerais, Brazil. Among the native sulfur specimens, (20), is an...such kind specimens were distributed during this mine commercial exploration. A portion of that stuff...greenishbrown apatite crystals in pink calciphyre from Yates mine, Otter lake, Quebec, Canada. There are several remarkable...needleshaped crystals and were found in Oktiabrskiy mine, Noril’sk district (donated by E. Spiridonov). Massive |  | | Book | | On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona (by W. J. Thomas & R. B. Gibbs) 14:283-298...ALLEN, GEORGE B. --and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE...Allgood, C. Williams: Ramsdellite from the Mistake mine [Arizona] 14:333-335 ALLGOOD, ROBERT W. -with G...the Mistake mine [Arizona] 14:333-335 ALMA Famous mineral localities: the Home Sweet Home mine, [near Alma |  | Le Vaillant, Margaux, Barnes, Stephen J., Fiorentini, Marco L., Barnes, Sarah-Jane, Bath, Adam, Miller, John (2018) Platinum-group element and gold contents of arsenide and sulfarsenide minerals associated with Ni and Au deposits in Archean greenstone belts. Mineralogical Magazine, 82 (3) 625-647 doi:10.1180/minmag.2017.081.100 | Journal (article/letter/editorial) | | komatiite-hosted Fortaleza de Minas deposit in Brazil (De Almeida et al., 2007). Additionally, a few...with 1-2 wt% Ni (pyrrhotite, pentlandite, minor chalcopyrite, pyrite and traces of gersdorffite) and massive...pyrrhotite, <8 vol% pentlandite and <12 vol% pyrite, chalcopyrite and magnetite). The longest massive sulfide...calcite – dolomite – pyrrhotite – pentlandite – chalcopyrite – chlorite – gold ± ilmenite ± cobaltite ± biotite...the komatiite-hosted Fortaleza de Minas deposit, Brazil: Evidence of hydrothermal remobilization.: Canadian |
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