 | | Journal (issue) | | crystal, 75 mm long, from the Cruzeiro mine, Minas GĂ©rais, Brazil. See 'The location, geology and mineralogy...mineralogy of gem tourmalines in Brazil' on pp. 263-98 ISSN: 1355-4565 262 J. G e m m , 1996, 25, 4 ...location, geology and mineralogy of gem tourmalines in Brazil Jacques P. Cassedanne, Dr. Sc. *, and Maurice Roditi...tourmaline is the 'Eastern pegmatitic province' of Minas Gerais. One general and three detailed maps of specific...Non-pegmatitic deposits of tourmaline include the Brumado mine (Bahia) which produces fine red uvite crystals and |  | | Journal (issue) | | a n d Peter C. Keller Gem Pegmatites of Minas Gerais, Brazil: The Tourmalines of the Governador Valadares...Summer 1985 85 GEM P E G m T I T E S OF MINAS G E M S , BRAZIL: THE T O U R W L I N E S OF THE G O V E...around the city of Araquai, i n northeastern Minas Gerais, and discussed 20 important mines in that area...tourmaline mines i n s o ~ ~ ~ h e a s t eMinas rn Gerais, in the broad area surrounding the gemstone capital...and tor her constant support, The many miners and mine owners who were so instrumentalin providing information |  | | Report (volume) | | Deposits in Minas Gerais Brazil GEOLOGICAL SURVEY BULLETIN 964-C Mica Deposits in Minas Gerais Brazil...M. BARBOSA and RESK FRAYHA, DIVISSO DE FOMENTO, BRAZIL GEOLOGIC INVESTIGATIONS IN THE AMERICAN REPUBLICS...da Produgao Mineral, Ministerio da Agricultura, Brazil, under the auspices of the Interdepartmental Committee...__________-___---_____---_-________ Exports of sheet mica from Brazil, 1900-1945-___-__-_______----______ General statement...___________________ Mica-mining industry in Minas Gerais.______________________________ General stat |  | | Book | | until he managed to reach the land of his dreams, Brazil. A specialist in the field of geology and mineralogy...crystals and the remarkable mineral treasures of Brazil, as well as the incredible adventures and difficulties...UNIQUE MINERALS IN WORLD MUSEUMS  GEM TREASURES OF BRAZIL Cyan Magenta Yellow Black 1 Delev Ilia Deleff...UNIQUE MINERALS IN WORLD MUSEUMS GEM TREASURES OF BRAZIL SOFIAâMOSCOW 2004 3 Cyan Magenta Yellow Black...NATIONAL MUSEUM IN SOFIA 66 OTHER COLLECTIONS OF MINE IN BULGARIA 71 COLLECTIONS IN OTHER CITIES AROUND |  | Gomes, Celso de Barros, Azzone, RogĂ©rio Guitarrari, Rojas, Gaston Eduardo Enrich, Guarino, Vincenza, Ruberti, Excelso (2021) Agpaitic Alkaline Rocks in Southern Brazilian Platform: A Review. Minerals, 11 (9) 934 doi:10.3390/min11090934 | Journal (article/letter/editorial) | | University of SĂŁo Paulo, SĂŁo Paulo 05508-080, Brazil; rgazzone@usp.br (R.G.A.); gastonenrich@usp.br...occurrences located in southern Brazil and at the border between Brazil and Paraguay. All the Brazilian...and rinkite, rather than simple minerals such as zircon and ilmenite [1,2]. This term was first proposed...the miaskitic types characteristically contain zircon, baddeleyite and titanite, whereas the agpaitic...References 1 Poços de Caldas 79â87 (Ar-Ar, K-Ar) 2 Itatiaia 67.5â71.3 Ma (U-Pb) ring-like nepheline syenite |  | | Journal (issue) | | Articles 708 Coloured Stone Mining and Trade in Brazil: A Brief History and Current Status By AurĂ©lien...Collection V. L. Villani photo p. 758 Cover Photo: Brazil is the source of a variety of coloured stones,... Whatâs New corundum, alexandrite, tanzanite, zircon, Imperial topaz and emerald (and its most common...blood ruby, royal blue and cornflower sapphire, old mine/ Muzo green emerald, sunrise and sunset padparadscha...4b), spessartine (Figure 4c), almandine, quartz, zircon, apatite, topaz, sillimanite, fluorite, chrysoberyl |  | | Report (issue) | | Deposits of the Western Serra do Curral, Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-G...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International...Curral, Minas Gerais, Brazil By GEORGE C. SIMMONS GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS...GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-G Prepared in cooperation with the Departamento...Departamento Nacional da Producao Mineral of Brazil under the auspices of the Agency for International Development |  | | Journal (issue) | | CollectorâPart II Fify-nine treasure hunts in Minas Gerais, 1969â2005 . . . . . . . . . . . . . 207 by...crystal cluster on matrix, 6 cm tall, from the Tsumeb mine, Tsumeb, Namibia. Sandor Fuss collection (2004)...Vug,â discovered on the 12th level of the Cresson mine, Cripple Creek district, Colorado in 1914 (see âThe...Mineralogical Record, volume 37, MayâJune, 2006 Cresson mine manager Dick Roelofs showing the Cresson Vug to...school; he did his Masterâs work at the Rueppele iron mine in Stanton, Missouri. He spent the years 1931â1932 |  | Amaral, G., Bushee, J., Cordani, U.G., Kawashita, K., Reynolds, J.H. (1967) Potassium-argon ages of alkaline rocks from southern Brazil. Geochimica et Cosmochimica Acta, 31 (2) 117-142 doi:10.1016/s0016-7037(67)80041-3 | Journal (article/letter/editorial) | | Potassium-argon ages of alkaline rocks f~om southern Brazil* G. AIV~R~L,~ J. BVS~EE,~ U. G. CORDA~,~ K . KAWASHITAt...Department of Geology, University of SRo Paulo, Brazil (Received 2 May 1966) A b s t r a c t - - W e...frequency) from 21 alkaline rock localities in southern Brazil. A general geological description is given for...Mesozoic basaltic rocks that occur widely in southern Brazil and neighboring c o u n t r i e s , a n d t h e...geologists in alkaline rocks. Like Africa and Russia, Brazil has one of the greater concentrations of this type |  | | Book | | BARTORELLI ::âą . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...26 mm), Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph...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) | | evolution of the Quadrilfitero Ferrifero, Minas Gerais, Brazil Farid Chemale Jr.a, Carlos A. RosiCreb and...SaâoLeopoldo, RS, Brazil bCentro de Pesquisas M. T. da Costa/IGC, UniversidadeFederal de Minas Gerais. Pampulha...Pampulha, 31270-000 Belo Horizonte, MC, Brazil âDepartamento 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 |  | Mendes, Julio Cezar, Ăvila, Ciro Alexandre, Pereira, Ronaldo Mello, Heilbron, MĂŽnica P.L., Moura, Candido A.V. (2006) 207Pb/206Pb-ages of zircons from syn-collisional I-type porphyritic granites of the central Ribeira belt, SE Brazil. Gondwana Research, 9 (3) 326-336 doi:10.1016/j.gr.2005.11.004 | Journal (article/letter/editorial) | | porphyritic granites of the central Ribeira belt, SE Brazil Julio Cezar Mendes a,*,1, Ciro Alexandre AÌvila...central segment of the Ribeira belt, southeast Brazil, several foliated porphyritic granitic bodies intrude...more than 1000 km along the southeastern coast of Brazil (Fig. 1). It developed as the result of the amalgamation...the towns of Itatiaia, Visconde de MauaÌ and Santa Rita de Jacutinga, in the Minas Gerais/Rio de Janeiro/SaÌo...(2006) 326 â 336 327 Fig. 1. Tectonic map of Brazil modified after Schobbenhaus et al. (1984). Legend: |  | Brotzu, P., Gomes, C.B., Melluso, L., Morbidelli, L., Morra, V., Ruberti, E. (1997) Petrogenesis of coexisting SiO2-undersaturated to SiO2-oversaturated felsic igneous rocks: The alkaline complex of Itatiaia, southeastern Brazil. Lithos, 40 (2) 133-156 doi:10.1016/s0024-4937(97)00007-8 | Journal (article/letter/editorial) | | igneous rocks: The alkaline complex of Itatiaia, southeastern Brazil P. Brotzu a, C.B. Gomes b, L. Melluso...Geocihbas, Universidade de Skio Paula, Siio Paula, Brazil â Dipamâmento di Scienze della Terra, Universith...Received 10 December 1996; accepted 1 April 1997 The Itatiaia aWine complex is a Late Cretaceous intrusion (72...significant lithotype, the potassic affinity of the Itatiaia complex, and the relatively high Sr-isotopic ratios...complex of Itatiaia belongs to the Cretaceous-Tertiary alkaline province of southeastern Brazil, that is |  | Melluso, Leone, Guarino, Vincenza, Lustrino, Michele, Morra, Vincenzo, de' Gennaro, Roberto (2017) TheREE-and HFSE-bearing phases in the Itatiaia alkaline complex (Brazil) and geochemical evolution of feldspar-rich felsic melts. Mineralogical Magazine, 81 (2) 217-250 doi:10.1180/minmag.2016.080.122 | Journal (article/letter/editorial) | | REE- and HFSE-bearing phases in the Itatiaia alkaline complex (Brazil) and geochemical evolution of feldspar-rich...Editor: Jason Harvey] ABSTR ACT The Late Cretaceous Itatiaia complex is made up of nepheline syenite grading...in the metamorphic rocks of the Serra do Mar, SE Brazil. The nepheline syenites are characterized by assemblages...are found with allanite, fluorapatite, fluorite, zircon, thorite, yttrialite, zirconolite, pyrochlore and...The major- and trace-element composition of the Itatiaia rocks have variations linked to the amount of |  | | Report (chapter) | | do Rio de Janeiro (DGRG/UERJ), Rio de Janeiro, Brazil 2 Programa de PosgraduaçaÌo, Faculdade de Geologia...Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil *Corresponding author (e-mail: mauro.geraldes@gmail...to the Cabo Granite (104 Ma) are observed in NE Brazil. In West Africa, sparse AptianâAlbian ages are...break-up is presented below. In the SE region of Brazil, there were two major magmatic events in the continental...examples of the abovementioned magmatism in eastern Brazil, West Africa and adjacent oceanic areas. The Saint |  | | Journal (issue) | | manager Famous mineral localities: the Broken Hill mine, Zam bia..............................................351 Famous mineral localities: the Cruzeiro mine, past and present ................................Warren A new find of crystallized rose quartz in Minas G e ra is ........................................B-2120 Schoten COVER: ELBAITE on quartz from Minas Gerais, Brazil. The crystal is 8.5 mm in width. Photo by...Kitwe, Zambia HISTORY The Broken Hill lead-zinc mine is located near the town of Kabwe, 140 km north |  | | 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 |  | | Book | | Formed in Pegmatites: 57 Gem Pegmatites of Minas Gerais, Brazil 5. Gemstones Formed Directly from Molten...Colombia as an example; the pegmatites of Minas Gerais, Brazil; and those gemstones formed in a magma at..., was responsible for photographs of the Argyle mine and the spectacular pink diamond. The Smithsonian...including The Gem Collection of the Smithsonianj Brazil, Paradise ofGemstonesj Emerald and Other Berylsj...MEXICO Ag.UB SuECo. CHI HUAHUA MeXICO ~ tRIO$. BRAZIL DtamOIH~ Tu'QuorSiIl ALLUVIAL GEM DEPOSITS Agate | | | Book | | Formed in Pegmatites: 57 Gem Pegmatites of Minas Gerais, Brazil 5. Gemstones Formed Directly from Molten...Colombia as an example; the pegmatites of Minas Gerais, Brazil; and those gemstones formed in a magma at..., was responsible for photographs of the Argyle mine and the spectacular pink diamond. The Smithsonian...including The Gem Collection of the Smithsonianj Brazil, Paradise ofGemstonesj Emerald and Other Berylsj...MEXICO Ag.UB SuECo. CHI HUAHUA MeXICO ~ tRIO$. BRAZIL DtamOIH~ Tu'QuorSiIl ALLUVIAL GEM DEPOSITS Agate |  | | Journal (issue) | | row, from left: Euclase, 2.3 cm, from the GachalĂĄ mine, GuaviĂł-GuatĂ©que mining district, BoyacĂĄ Department...Budd photo. Tanzanite, 7.6 cm, from the Merelani mine near Arusha, Tanzania. Barry & Beth Kitt collection;...Fluorite on quartz, 13 cm, from the Yaogangxian mine, Chenzhou Prefecture, Hunan Province, China. The...kunzite), 9 cm, from the Urucum mine, GalilĂ©ia, Minas Gerais, Brazil. Gus & Jane Eifler collection; Holly...the Musonoi mine, Zaire (#950). Jerry Cone photo. Adamite, 5-mm view, from the Mohawk mine, San Bernardino |  | | Report (issue) | | REPORT Brazil Investigations (IR)BR-76 NIOBIUM (COLUMBIUM) AND TANTALUM RESOURCES OF BRAZIL U. S. Geological... NIOBIUM (COLUMBIUM) AND TANTALUM RESOURCES OF BRAZIL By Max G. White U.S. Geological Survey CONTENTS...Distribution of alkalic intrusives in Southern Brazil .. 16 Alkalic intrusions in the western side of...geologic setting of deposits .............. 24 Minas Gerais ...................................... 24 Bahia................................. 25 Northeastern Brazil ............................... 25 Territory of |  | Thompson, R. N., Gibson, S. A., Mitchell, J. G., Dickin, A. P., Leonardos, O. H., Brod, J. A., Greenwood, J. C. (1998) Migrating Cretaceous-Eocene Magmatismin the Serra do Mar Alkaline Province,SE Brazil: Melts from the Deflected Trindade Mantle Plume?. Journal of Petrology, 39 (8) 1493-1526 doi:10.1093/petroj/39.8.1493 | Journal (article/letter/editorial) | | Magmatism in the Serra do Mar Alkaline Province, SE Brazil: Melts from the Deflected Trindade Mantle Plume...UNIVERSIDADE DE BRASIÌLIA, 70910 BRASIÌLIA DF, BRAZIL RECEIVED JULY 30, 1997; REVISED TYPESCRIPT ACCEPTED...volcanic remnants, and dyke swarms along coastal SE Brazil. The igneous rocks are emplaced into metamorphics...mantle plume impacted at ~85 Ma beneath interior SE Brazil where the lithosphere was too thick (>150 km),...strongly alkaline magmatism at Lages, southern Brazil, a site of localized rifting. After ~80 Ma, as |  | Moreira, Hugo, Cassino, Lucas, Lana, Cristiano, Storey, Craig, Albert, Capucine (2019) Insights into orogenic processes from drab schists and minor intrusions: Southern SĂŁo Francisco Craton, Brazil. Lithos, 346. 105146 doi:10.1016/j.lithos.2019.07.013 | Journal (article/letter/editorial) | | minor intrusions: Southern SĂŁo Francisco Craton, Brazil Hugo Moreira, Lucas Cassino, Cristiano Lana, Craig...minor intrusions: Southern SĂŁo Francisco Craton, Brazil, LITHOS, https://doi.org/10.1016/j.lithos.2019...minor intrusions: Southern SĂŁo Francisco Craton, Brazil Hugo Moreiraa, Lucas Cassinob, Cristiano Lanab...Geologia, Escola de Minas, Universidade Federal de Ouro Preto, Ouro Preto, MG 35400-000, Brazil; c Department...Palaeoproterozoic southern SĂŁo Francisco Craton (SSFC), Brazil using geological relationships and accessory mineral |  | | Journal (issue) | | and Anthony R. Kampf Gem Pegmatites of Minas Gerais, Brazil: Exploration, Occurrence, and Aquamarine...the northeastern section of the state of Minas Gemis, Brazil. The history of gem exploration and m i n...from the Pioneer mine in the Te6filo Otoni-Marambaia pegmatite district of Minas Gerais. As is common with...gem pegmatite regions of the 20th century: Minas Gerais, Brazil. With these articles, we hope to take you...what pegmatite gems have meant historically in Brazil and the production of one very important pegmatite |  | | Journal (issue) | | SEPTEMBERâOCTOBER 2019 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 |
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