 | Gonçalves, Guilherme O., Lana, Cristiano, Buick, Ian S., Alkmim, Fernando F., Scholz, Ricardo, Queiroga, Glaucia (2019) Twenty million years of post-orogenic fluid production and hydrothermal mineralization across the external Araçuaí orogen and adjacent São Francisco craton, SE Brazil. Lithos, 342. 557-572 doi:10.1016/j.lithos.2019.04.022 | Journal (article/letter/editorial) | | Araçuaí orogen and adjacent São Francisco craton, SE Brazil Guilherme O. Gonçalves, Cristiano Lana, Ian S...Araçuaí orogen and adjacent São Francisco craton, SE Brazil, LITHOS, https://doi.org/ 10.1016/j.lithos.2019...Araçuaí orogen and adjacent São Francisco craton, SE Brazil Guilherme O. Gonçalvesa,* goncalves.go@icloud.com...(eastern border of the São Francisco craton, SE Brazil). We sampled hydrothermal minerals (monazite, rutile...feature known as the Araçuaí orogen of southeastern Brazil corresponds to the largest portion of the Ediacaran-Cambrian |  | Peixoto, Eliza, Alkmim, Fernando F., Pedrosa-Soares, Antônio, Lana, Cristiano, Chaves, Alexandre O. (2018) Metamorphic record of collision and collapse in the Ediacaran-Cambrian Araçuaí orogen, SE-Brazil: Insights fromP-Tpseudosections and monazite dating. Journal of Metamorphic Geology, 36 (2) 147-172 doi:10.1111/jmg.12287 | Journal (article/letter/editorial) | | collapse in the Ediacaran-Cambrian Araçuaí orogen, SE-Brazil: Insights from P-T pseudosections and monazite... MG, Brazil 2 Universidade Federal de Minas Gerais, CPMTC-IGC, Campus Pampulha, Belo Horizonte 31.270...270.901, MG, Brazil * Corresponding author: einpeixoto@gmail.com # Fellow of the Brazilian Research Council...fold-thrust system (SE-thrust system), the normal-sense Chapada Acauã shear zone (CASZ), and the Salinas synclinorium...exposed across the Araçuaí orogen in southeastern Brazil (Figure 1) comprise a sequence of metamorphic assemblages |  | Cabral, A. R., Tupinambá, M., Lehmann, B. (2013) Spessartine in compact-hematite rock, southern Serra do Espinhaço, Minas Gerais, Brazil, and genesis of compact hematite. Mineralogical Magazine, 77 (8) 3197-3215 doi:10.1180/minmag.2013.077.8.12 | Journal (article/letter/editorial) | | rock, southern Serra do Espinhaço, Minas Gerais, Brazil, and genesis of compact hematite A. R. CABRAL1...Xavier 524 s. A4016, 20550-050 Rio Janeiro-RJ, Brazil [Received 29 March 2013; Accepted 5 November 2013;...as well as andradite (4 7 mol.%); pyrope and almandine endmembers are 4~2 and 1 mol.%, respectively....rock, spessartine, REE, Eu anomaly, Minas Gerais, Brazil. Introduction GARNET occurs in metamorphosed,...composition of garnet in BIF is predominantly almandine, reflecting the elevated whole-rock Fe content |  | | 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,...blood ruby, royal blue and cornflower sapphire, old mine/ Muzo green emerald, sunrise and sunset padparadscha...spinel (Figure 4b), spessartine (Figure 4c), almandine, quartz, zircon, apatite, topaz, sillimanite,...The source of much of this pyrite is the Huanzala mine in west-central Peru, which has probably yielded |  | | Journal (issue) | | geology, and notable localities of diamond mining in Brazil, and outlines plans for future diamond production... Svisero, James E. Shigley, and Robert Weldon Brazil, which commanded global production in the 1700s...Gerais and Mato Grosso, are presented. W hile Brazil is widely known for the production of colored gemstones...deposits. According to Kimberley Process statistics, Brazil produced 31,825 carats in 2015, although this figure...Despite its low output relative to other sources, Brazil has produced a significant number of large rough |  | Richardson, Stephen V., Kesler, Stephen E., Essene, Eric J., Jones, Lois M. (1986) Origin and geochemistry of the Chapada Cu-Au deposit, Goias, Brazil; a metamorphosed wall-rock porphyry copper deposit. Economic Geology, 81 (8) 1884-1898 doi:10.2113/gsecongeo.81.8.1884 | Journal (article/letter/editorial) | | and Geochemistryof the ChapadaCu-Au Deposit,Goias,Brazil: A MetamorphosedWall-RockPorphyryCopper Deposit...CONOCO,Inc., PoncaCity, Oklahoma74601 Abstract Chapada isa large(134 X 106metrictons),low-grade (0.44%Cu...geologicallycomplexPan-Africanmobile belt in centralGoiasstate,Brazil. Mineralizationis hostedlargelyby subhorizontal...smallsizeand Thisreport concernsthe Chapadadepositin Brazil, low grade,but some,suchasthe Mcintyre minein whichwe...1972). Chapada,whichis in west-cencatedcomparison oftheseolderporphyrydeposits to tral Goias,Brazil (S 14o15' |  | | 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 |  | | Book | | MINES AND MINERALS IN BRAZIL --= ··--· ··- ·-·=- MINES AND MINERALS IN BRAZIL J OSIAS LEAO (ECONOMIC...regarding water power and industry of electr·icity in Brazil were specially prepared at the Division of Waters........ 189 SUMMARY OF THE MINERAL RESERVES OF BRAZIL..... . ... ....... . .. 199 STATISTICAL TABLES...practically untouched, the mineral reserves of Brazil have already been a source of wealth to many and...without the discovery of the precious metals in Brazil the existence of the modern economic man would |  | | Journal (article/letter/editorial) | | Metasomatism,and Mineralization at Lagoa Real, Bahia, Brazil LYDIA M. LOBATO* Comissdo Nacionalde EnergiaNuclear--Centrode...Tecnologia Nuclear, Cx. Postal 1941, Belo Horizonte, Minas Gerais, Brazil 31271 AND WILLIAM S. FYFE Geology...oFranciscoeraton, at the LagoaReal region of southcentralBahia,Brazil. The gneisses havebeen subjectedto amphiboliteand...Lagoa Real region of south-centralBahia State, Brazil, granitie rocks enclosedin high-grade basementgneissesof...Pampulha,Belo Horizonte, localized zonesof uranium enrichment that in places Minas Gerais, Brazil 31270. attainore |  | Moreira, Helen F., Danderfer, André, Costa, Alice F.O., Bersan, Samuel M., Lana, Cristiano C., Queiroga, Gláucia N. (2020) Record of Early Tonian mafic magmatism in the central Espinhaço (Brazil): New insights for break-up of the Neoproterozoic landmass ancestor of São Francisco-Congo paleocontinent. Geoscience Frontiers, 11 (6) 2323-2337 doi:10.1016/j.gsf.2020.02.007 | Journal (article/letter/editorial) | | Tonian mafic magmatism in the central Espinhaço (Brazil): New insights for break-up of the Neoproterozoic...Geology, Mine School, Federal University of Ouro Preto, Brazil Department of Geology, Mine School, Federal...Federal University of Ouro Preto, Brazil A R T I C L E I N F O A B S T R A C T Handling Editor: Sohini...and Ernst, 2006; Ernst et al., 2013). In eastern Brazil, the S~ao Francisco Province is the crustal fragment...Department of Geology, Mine School, Federal University of Ouro Preto, Brazil, Campus Universitario, |  | | 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 |  | | Journal (issue) | | Articles The Golconda District, Minas Gerais, Brazil .................................................TOURMALINE, 11.9 cm, from the Golconda I mine, Minas Gerais, Brazil Brice Gobin (Mineral Art) and Emanuele...China, South Africa, Namibia, Chile, Peru, Bolivia, Brazil and Mexico. His first exchange of specimens with...as well, and they started picking over the local mine deposits together. They were married in 1970, and... Zincolivenite with Ferrilotharmeyerite | Tsumeb Mine, Namibia | 7.0 x 7.0 x 6.0 cm CRYSTAL CLASSICS |  | | Journal (issue) | | lepidolite, from Virgem da Lapa, Minas Gerais, Brazil. (For more on the locality see the article by Cassedanne...Pennsylvania 15026. The twelve color photos show groups of mine lamps and other mining antiques from the extraordinary...March-April, 1985 Recent discoveries of Phenakite in Brazil J. P. Cassedanne Instituto de Geociencias Cidade...Universitaria Ilha do Fundao. 29910 Rio de Janeiro, Brazil INTRODUCTION Phenakite, Be2Si04, occurs in granitic...Sverdlovsk in the Urals, Soviet Union; the Morefield mine, Amelia County, Virginia; and the Anjanabonoina |  | | Journal (article/letter/editorial) | | Garnet 4.3. Staurolite Garnet is a Mg- and Ca-rich almandine (Py17–30, Alm50–59, Sps1–7, Grs17–22). Large garnet...the timing of Au–Mo mineralization in the golden mine. Econ. Geol. Bull. Soc. Econ. Geol. 89, 720–756...Kyanite–stautolite–orthoamphibolite from the Chapada region, Goiás, central Brazil. Mineral. Mag. 62, 501–507. S |  | | Journal (issue) | | 0026-4628 'Continued on p. 415 Articles Diamonds in Brazil .................................................Moore Phosphate minerals from the Leveaniemi iron mine, Svappavaara, Sweden .............................Hollabaugh Laueite from Hagendorf-Siid andthe Palermo mine ................. 363 by L. C. Pitman New data...image of a crack hidden in the back (roof) of a mine adit (from A. P. Annan etal. (1988) Radar sounding...Universitaria, Ilha do Fundao 21.910 Rio de Janeiro, Brazil Since their discovery in Minas Gerais, near the |  | | Journal (issue) | | spectroscope in seeing absorption bands in zircon and almandine garnet. He mentioned the tiny diamonds presumed...solution series of the garnet end members pyrope, almandine, and spessartite with low contents of a grossularite...refractive index of members of the series pyrope-almandine vary between 3.71 and 4.04 g/cm 3 and between...all members of the solid solution series pyrope-almandine-spessartite, which is used in petrology and mineralogy...a distinct Fe-content—that means, without an almandine component. On the other hand, a different garnet |  | | Report (issue) | | Persi~ • •• ••• Siam ••• • • •• ••• Argentina Brazil ••• •• -· ••• .. ' .. " •• •• • • • •...compact. A special variety of diamo~d peculiar to Brazil is known as carbonado or '' carbon ''; it is black...ruby, but which is always tinged with yellow ; almandine, or '' carlbuncle '', a deep crimson variety tinged...rhodolite, which is int-e rmediate between pyrope and almandine ; Jiessonite, of ten known as '' cinnamon stone...probably largely on account of its abundance. Almandine is used in India, but not to any extent in western |  | | Journal (issue) | | Emerald Business in Colombia Focus on Brazil 36 30 Booming Brazil – A Rising Star in the Jewelry Industry...Gemstones 52 Interesting New Gemological Finds in Brazil Mining 62 Andesine in Tibet – A Second Field...ethical concepts all along the supply chain, from mine to market. For the moment, only a small number of...operate in the future. The remediation of existing mine sites represents a significant opportunity.” Images...Oliveira (2005) describes cases in Campos Verdes, Brazil where inexpensive projects have resulted in concrete |  | | Report (issue) | | Development of the Quadrilatero Ferrifero Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 641-A Prepared...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International...Development of the Quadrilatero Ferrifero Minas Gerais, Brazil By JOHN VAN N. DORR 2d REGIONAL GEOLOGY OF THE...THE QUADRILATERO FERRIFERO, MINAS GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 641-A Prepared...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International |  | | 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 |  | | Journal (issue) | | marketed, and merchandized. In diamonds especially, the mine-to-market process has been severely tested. Vertical...Namibia, as well as Madagascar), South America (Brazil and Colombia), central and southern Asia (Sri Lanka...Pakistan; and pink to red tourmalines from Nigeria and Brazil. Diamond was mined in northern Canada for the first...reference to the country rather than to the specific mine or region. For more on the specific localities,...mining also continued at traditional sources in Brazil and Africa. Large quantities of Brazilian emeralds |  | Amaral, Leandro, Caxito, Fabrício de Andrade, Pedrosa-Soares, Antonio Carlos, Queiroga, Gláucia, Babinski, Marly, Trindade, Ricardo, Lana, Cristiano, Chemale, Farid (2020) The Ribeirão da Folha ophiolite-bearing accretionary wedge (Araçuaí orogen, SE Brazil): New data for Cryogenian plagiogranite and metasedimentary rocks. Precambrian Research, 336. 105522 doi:10.1016/j.precamres.2019.105522 | Journal (article/letter/editorial) | | ophiolite-bearing accretionary wedge (Araçuaí orogen, SE Brazil): New data for Cryogenian plagiogranite and metasedimentary...ophiolite-bearing accretionary wedge (Araçuaí orogen, SE Brazil): New data for Cryogenian plagiogranite and metasedimentary...ophiolite-bearing accretionary wedge (Araçuaí orogen, SE 2 Brazil): New data for Cryogenian plagiogranite and metasedimentary...Carlos 6627, Pampulha, 31270-901, Belo Horizonte, MG, Brazil 9 b Instituto de Geociências, Universidade...Paulo, Rua do Lago, 562, 05580-080, São Paulo, SP, Brazil 10 c Departamento de Geologia, Escola de Minas |  | Kaminsky, F., Zakharchenko, O., Davies, R., Griffin, W., Khachatryan-Blinova, G., Shiryaev, A. (2001) Superdeep diamonds from the Juina area, Mato Grosso State, Brazil. Contributions to Mineralogy and Petrology, 140 (6) 734-753 doi:10.1007/s004100000221 | Journal (article/letter/editorial) | | diamonds from the Juina area, Mato Grosso State, Brazil Received: 29 May 2000 / Accepted: 30 October 2000...Alluvial diamonds from the Juina area in Mato Grosso, Brazil, have been characterized in terms of their morphology...MgSi-perovskite coexists with TAPP (tetragonal almandine-pyrope phase). Majoritic garnet occurs in one...The Juina area is a major diamond mining area in Brazil (Fig. 1). In the late 1980s±early 1990s, as many...(in carats); shaded area Cretaceous-Tertiary ``Chapada'' deposits Diamonds from this area have attracted |  | | Book (edition) | | market. d ay the Jagersfontein A t the present Mine, in South Africa, produces Diamonds of pure water...brought to light from the mines of India or of Brazil. IV . In the fourth class comes first the Emerald...found in the Ural mountains, or in Brazil, or at the Jagersfontein Mine in South Africa. The Emerald of...unequal rival The Beryl of Siberia to that of Brazil, and the Amethysts of the Bavarian Palatinate...acknowledged fact that in India, Burma, Ceylon, and Brazil, andof late years in South Africa, in Siam, and |  | Wanhainen, C., Broman, C., Martinsson, O., Magnor, B. (2012) Modification of a Palaeoproterozoic porphyry-like system: Integration of structural, geochemical, petrographic, and fluid inclusion data from the Aitik Cu–Au–Ag deposit, northern Sweden. Ore Geology Reviews, 48. 306-331 doi:10.1016/j.oregeorev.2012.05.002 | Journal (article/letter/editorial) | | in northern Sweden is Sweden's largest sulphide mine with an annual production of 35 Mt of ore, and the...the 1930s, and a feasibility study for an open pit mine was conducted by Boliden AB in 1964. Production...Aitik Cu–Au–Ag deposit is Sweden's largest sulphide mine, one of Europe's largest producers of copper, gold...are pre-metamorphic and partly recrystallised. 6. Mine-scale structures The Aitik Cu–Au–Ag deposit is hosted...dominant directions of structures within the Aitik mine. (a) 213 foliation measurements. (b) 230 fault and |
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