 | | Report (issue) | | Cover: Topaz, 3.5 cm tall Capao Mine, Ouro Preto, Minas Gerais, Brazil Max and Jon Sigerman collection Robert...Zimbabwe Blue Topaz: St. Anne's Mine JAN KANIS 60. Brazil: The Land of Topaz DIETMAR SCHWARZ 68. Topaz from...locality in Brazil (Sinkankas, 1981). Two gemmy crystals from the Te6filo Ot6ni region in Minas Gerais, Brazil...three huge specimens from Te6filo Ot6ni, Minas Gerais, Brazil, that are housed at the Smithsonian Institution...left: Topaz and quartz, 2.7 cm tall; Ouro Preto, Minas Gerais, Brazil; Kiyoshi Kiikuni collection and photo |  | | Book | | Egypt 132 Argentina 132 Australia 133 Austria 135 Brazil 135 Bulgaria 155 Canada 156 Commonwealth of Independent...familiarity with Brazil and the importance of the 'Imperial' topaz deposits at Ouro Preto, Brazil, in the world...assumed importance) in the trade of deposits in Brazil and the former USSR, particularly those of pink...available for this research. Information on the Ouro Preto, Brazil, deposits would not have been as complete...Carlos Barbosa, Brazil; Professor J. Cassedanne, Brazil; Ora M.H. Falabella, Brazil; Dr T. Lee, Australia; |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais. Collection of Alvaro Lucio. Photograph taken...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) | | grow. Impressive topaz specimens from Pakistan, Brazil, Mexico, and Russia are highly coveted by mineral...pegmatite belt; 6. Rondoni, Brazil; 7. eastern Brazil pegmatite belt (includes Ouro Preto locality); 8. tin granites...sherry-colored topaz ("imperial") is typical of the Ouro Preto, Brazil, locality, whereas fine gemquality pink topaz...and the southern Ural Mountains, in addition to Ouro Preto. Red, violet, orange, and pale green topaz is...of greisens, Common accessory minerals include fluorite, tourmaline, cassiterite, and wolframite. Pegmatites |  | | Journal (issue) | | Moore Recent discoveries of hydroxylherderite in Minas Gerais ..............................................R. P. Richards Famous mineral localities: the Ouro Preto topaz mines ...................................the slaked lime and some highly insoluble CaF2 (fluorite) would form. Then, the whole slurry was agitated...Ilha do Fundao 21.910 Rio de Janeiro, Brazil INTRODUCTION Brazil is world famous for its several occurrences...prized by collectors. These occurrences, all in Minas Gerais, are described below along with the specimens |  | | Journal (article/letter/editorial) | | Polycrystals of Bimperial^ topaz from Minas Gerais state, Brazil Teodoro Gauzzi 1 & Gilberto Álvares da...variety that occurs in the Ouro Preto region (Minas Gerais state, Brazil). Polygonal sectors within the...gemstone variety of topaz from the Ouro Preto region, Minas Gerais state, Brazil (Silva and Ferreira Editorial...Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, MG 35400-000, Brazil 2 Department...Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, MG 35400-000, Brazil 1987). The Bimperial^ |  | Gauzzi, Teodoro, Graça, Leonardo Martins, Lagoeiro, Leonardo, de Castro Mendes, Isolda, Queiroga, Gláucia Nascimento (2018) The fingerprint of imperial topaz from Ouro Preto region (Minas Gerais state, Brazil) based on cathodoluminescence properties and composition. Mineralogical Magazine, 82 (4) 943-960 doi:10.1180/minmag.2017.081.078 | Journal (article/letter/editorial) | | fingerprint of imperial topaz from Ouro Preto 2 region (Minas Gerais state, Brazil) based on 3 cathodoluminescence...1 9 Brazil ub lis he d Department of Geology, Federal University of Ouro Preto, Ouro Preto, MG 35400-000...35400-000, 10 2 11 901, Brazil 12 3 14 ABSTRACT Pr 15 Department of Geology, Federal University...PR 81531-980, Brazil ep 13 Department of Chemistry, Federal University of Minas Gerais, Belo Horizonte...properties of imperial topaz from Ouro 16 Preto region (Minas Gerais state, Brazil) and its relation with trace |  | | Journal (issue) | | Colombia. Top right: Topaz, 8.4 cm, from Ouro Preto, Minas Gerais, Brazil. Lower left: Phosphophyllite, 2 cm...Andrea Bartorelli: Minerals and Precious Stones of Brazil. Other important references (if any) for individual...da Cabeca mine, Parelhas, Rio Grande do Norte, Brazil. Will Johnson collection (I had to buy many unwanted...Morganite beryl, 7.5 cm, from near Araçuai, Minas Gerais, Brazil. The find predates the discovery of morganite...to get this specimen, a complete floater, for my Brazil collection); Tom Spann photo. Reference: Cassedanne |  | | Journal (article/letter/editorial) | | Gulch euclase is associated with bertrandite, fluorite, muscovite, and quartz. Specific occurrences include...from Brazil in 1785. Dana (1892) gives the locality as the mining district of Villa Rica in Minas Gerais...early name for Ouro Preto (“black gold”), Figure 2. Euclase, 2.4 cm tall, Ouro Preto, Brazil. Luiz Menezes...which was the capital of Minas Gerais from 1720 to 1897. Today, Ouro Preto is a city of 70,000 residents...topaz, euclase, and their associated minerals. Ouro Preto euclase occurs as colorless, yellow, bluish-green |  | Frost, Ray L., Xi, Yunfei, Scholz, Ricardo, Belotti, Fernanda M., Lagoeiro, Leonardo E. (2012) Chemistry, Raman and infrared spectroscopic characterization of the phosphate mineral reddingite: (MnFe)3(PO4)2(H2O,OH)3, a mineral found in lithium-bearing pegmatite. Physics and Chemistry of Minerals, 39 (10) 803-810 doi:10.1007/s00269-012-0535-7 | Journal (article/letter/editorial) | | named Cigana mine, near Conselheiro Pena, Minas Gerais, Brazil. The determined formula is ðMn1:60 Fe1:21...Federal University of Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, MG 35400-00, Brazil F. M. Belotti Federal...Itajubá, Campus Itabira, Itabira, MG 35903-087, Brazil Keywords Raman Infrared Molecular structure...located in the municipality of Conselheiro Pena, Brazil, have been carried out. Studies include chemistry...Eastern Brazilian Pegmatite Province (EBP) in Minas Gerais (Pedrosa-Soares et al. 2011). Geological description |  | | Journal (article/letter/editorial) | | 1967 in the Pioneira mine, Teofilo Otoni, Minas Gerais, Brazil. Downloaded by [Stockholm University Library]...de Salinas mine, Aracuai-Itinga district, Minas Gerais, Brazil. Although the owner did not wish to sell...specializing in colored gemstones. Keith's travels in Brazil in search of gems and crystal specimens have added...gemmy red tour malines from the Jonas mine in Brazil have sold for several hundred thousand dollars...from the Jonas pocket was said to have sold in Brazil in 1982 for close to $5 mil lion. This is in addition |  | 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...DEGEO, Universidade Federal de Ouro Preto, Ouro Preto, Minas Gerais, Brazil 2 IG, Universidade de S~o Paulo...Paulo, S~o Paulo, Brazil Received: November 29, 1990/Accepted: October 2, 1991 Abstract. Petrographic...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 |  | | 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 |  | | Journal (article/letter/editorial) | | PhosphateRich Carbonate Strata, Irecê Basin, Bahia, Brazil a J. Richard Kyle & Aroldo Misi b a Department...Federal da Bahia , 40210-340, Bahia, Salvador, Brazil Published online: 06 Jul 2010. To cite this article:...Phosphate-Rich Carbonate Strata, Irecê Basin, Bahia, Brazil, International Geology Review, 39:5, 383-399, DOI:...Universidade Federal da Bahia, Salvador, Bahia 40210-340, Brazil Downloaded by [Columbia University] at 23:50 09...within the Sao Francisco craton of northeast-central Brazil. Stratabound Zn-Pb-Ag sulfide- and phosphate-rich |  | | Journal (issue) | | Mark Ebert The Cap50 Topaz Deposit, Ouro Preto, Minas Gerais, Brazil 12 Peter C. Keller 21 Harry Winston:... 11 THE CAPAO TOPAZ DEPOSIT, OUR0 PRETO, MINAS GERAIS, BRAZIL By Peter C. Keller For over 200 years...topaz has been a small mining district near O u r o Preto. O n e o f the oldest and m o s t productive m i...article examines t h e history o f the O u r o Preto district as well as the geology o f the area and...topaz. 0 ABOUT THE AUTHOR LOCATION AND ACCESS Ouro Preto is located about 285 airline kilometers north |  | | Report (issue) | | Cachoeira do Campo Dom Bosco, and Ouro Branco Quadrangles Minas Gerais, Brazil GEOLOGICAL SURVEY PROFESSIONAL...the Departamento Nacional da Producao Mineral of Brazil under the auspices of the International Cooperation...Cachoeira do Campo Dom Bosco, and Ouro Branco Quadrangles Minas Gerais, Brazil By ROBERT F. JOHNSON GEOLOGY...GEOLOGY AND MINERAL RESOURCES OF PARTS OF MINAS GERAIS, BRAZIL GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-B...the Departamento National da Producao Mineral of Brazil under the auspices of the International Cooperation |  | | Journal (article/letter/editorial) | | tectonothermal event with the Imperial Topaz from Ouro Preto (Brazil) and from the Sanarka=Kamenka rivers (South...fluorination of carbonates stabilising topaz relative to fluorite. Introduction and problem The occurrence of pink...topaz from Ghundao Hill is similar to that of Ouro Preto (Brazil) as well as to that from the Sanarka and...consumed by fluorination reactions that produce fluorite and prevent formation of topaz. According to Barton...calcium is restricted to fluorite. In this context the general absence of fluorite and the association of |  | | Catalog/List | | numerous small sharp transparent light purple cubic FLUORITE crystals scattered in places. Attractive specimen...BERYL variety MORGANITE. Teofilo Otoni, Minas Gerais, Brazil. Light pinkish transparent glassy portion...and scattered over matrix with odd bluish purple Fluorite crystals on the reverse side of the specimen....£11.00. CALCITE.Morro Velho Mine, ouro Preto, Minas Gerais, Brazil. Translucent creamy to pale brownish...Attractive specimen for display. 5x3tx2t". £13.00. FLUORITE. Heights Mine, Weardale, Co.Durhom. Specimen A |  | Cabral, Alexandre Raphael, Koglin, Nikola, Strauss, Harald, Brätz, Helene, Kwitko-Ribeiro, Rogerio (2013) Regional sulfate–hematite–sulfide zoning in the auriferous Mariana anticline, Quadrilátero Ferrífero of Minas Gerais, Brazil. Mineralium Deposita, 48 (7) 805-816 doi:10.1007/s00126-013-0481-4 | Journal (article/letter/editorial) | | Mariana anticline, Quadrilátero Ferrífero of Minas Gerais, Brazil Alexandre Raphael Cabral & Nikola Koglin...south-eastern part of the Quadrilátero Ferrífero of Minas Gerais, Brazil. Cross-cut relationships of barite veins...Rodovia BR 381, km 450, 33040-900 Santa Luzia, MG, Brazil Keywords Barite . Sulfide . Gold . Tourmaline...Mariana anticline . Quadrilátero Ferrífero . Minas Gerais Sulfidation is an important ore-forming process...prior to orogenesis (Chang et al. 2008). In Minas Gerais, Brazil, numerous auriferous lodes have characteristics |  | | Journal (issue) | | Aesthetics Underground - Canada Alvaro Lucio M inerals - Brazil Ana Arruda - Azores Arizona M inerals Artifactual...Artifactual Im port Ausrox - Australia Barbosa, Carlos - Brazil Barcelona - US Im porters - Spain Ben David, Claude...Megaw, Peter M inerals Menezes, Luiz M inerals - Brazil M ercer M inerals M idwest M inerals M ikon M ineralien...ineralien Kontor - Germany Min - Geo - Czech Republic Minas Victoria - Spain M iner-W a - Poland Mineral Cabinet...Valadares M inerals - Brazil Van Scriver's M inerals - Czech Republic Vasconcelos - Brazil W einrich, Dan Minerals |  | | 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 SOFIA–MOSCOW 2004 3 Cyan Magenta Yellow Black...MINERAL TREASURES OF BRAZIL 76 85 AN OUTLINE OF THE MINERAL RESOURCES OF BRAZIL ORIGIN OF GIANT CRYSTALS |  | | Journal (issue) | | Hawthorne & W. W. Pinch Fifty-nine treasure hunts in Minas Gerais . . . . . . . . . . . . . . . . . . . . . ....albite matrix, 6.6 cm, from Conselheiro Pena, Minas Gerais, Brazil. Sandor Fuss/ Stuart Wilensky specimen;...Jeff Scovil photo. For more on the minerals of Minas Gerais see Guido Steger’s memoirs in this issue. The...Switzerland. Like specimens of pink octahedral fluorite and Japan law-twinned quartz, iron rose hematite...clusters of brilliant black, blocky or platy crystals (Brazil, South Africa); sharp crystals in groups with flashing |  | | Book (volume) | | appreciate a mineral from China, Pakistan, America or Brazil equally without any preconceived bias, prejudice...Georgia, 10, 56 Apatite Sao Jose de Batalha, Paraiba, Brazil, 41 Apophyllite Jalgaon, N. Maharashtra, India...Morganite) Brazilianite Linopolis Dist., Minas Gerais, Brazil, 37 Calcite 884 Mine, Huangpolong, near...Guangxi Prov., Prov., China, 8 (on Barite with Fluorite) Elmwood Mine, Elmwood, Tennessee, 29, (on Barite)...Mine, Boyaca Dept., Colombia, 64 Jos, Nigeria, 44 Fluorite (with Amethyst) Fong Jiashan Copper Mine, Hubei |  | 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) | | N. CP 941 CEP 30123-970, Belo Horizonte, Minas Gerais, Brazil 2 Instituto de Geociências, Universidade...3173 CEP 30140-970, Brasília, Distrito Federal, Brazil 3 Department of Subatomic and Radiation Physics...Universidade Federal de Ouro Preto, CEP 35400-000 Ouro Preto, Minas Gerais, Brazil 5 Companhia Vale do Rio...P.O. Box 09 CEP 33010-970, Santa Luzia, Minas Gerais, Brazil ABSTRACT Infrared (IR) spectra in the OH...and hydrothermal deposits in the state of Minas Gerais, Brazil. In the magmatic environment, samples of |  | | Report (issue) | | Linear distribution of lead and zinc deposits of Brazil (with English and Portuguese abs.): Chronique Mines...analysis, by the lead method, of some galenas of Brazil (with English abs.): [ France l Bur. Recherches...and granites of southeastern Brazil (States of Rio de Janeiro and Minas Gera is (with English abs.):...of the age of post-tectonic rocks of southeast Brazil: Soc. Geol. Belgique Annales, v. 91, p. 305-309...Missouri, in Genesis of stratiform lead-zinc-barite-fluorite deposits (Mississippi Valley type deposits)--A |
|
