 | Baggio, Sérgio Benjamin, Hartmann, Léo Afraneo, Lazarov, Marina, Massonne, Hans-Joachim, Opitz, Joachim, Theye, Thomas, Viefhaus, Tillmann (2018) Origin of native copper in the Paraná volcanic province, Brazil, integrating Cu stable isotopes in a multi-analytical approach. Mineralium Deposita, 53 (3) 417-434 doi:10.1007/s00126-017-0748-2 | Journal (article/letter/editorial) | | native copper in the Paraná volcanic province, Brazil, integrating Cu stable isotopes in a multi-analytical...varies from −0.9‰ in the southeastern portion (Rio Grande do Sul state) to 1.9‰ in the central portion (Paraná...Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil 2 Leibniz Universität...al. 2009) in southeastern South America, mainly Brazil but including portions of Uruguay, Argentina, and...al. 1988) and in the Etendeka (Peate 1997). In Brazil, PVP rocks belong to the Serra Geral Group (Wildner |  | Duarte, Lauren C., Hartmann, Leo A., Ronchi, Luiz H., Berner, Zsolt, Theye, Thomas, Massonne, Hans J. (2011) Stable isotope and mineralogical investigation of the genesis of amethyst geodes in the Los Catalanes gemological district, Uruguay, southernmost Paraná volcanic province. Mineralium Deposita, 46 (3) 239-255 doi:10.1007/s00126-010-0323-6 | Journal (article/letter/editorial) | | mineralogical investigation of the genesis of amethyst geodes in the Los Catalanes gemological district...S) and mineralogical studies of the world-class amethyst-geode deposits of the Los Catalanes gemological...silica minerals in geodes (chalcedony, quartz, and amethyst) are much larger and the values generally somewhat...Uruguayan deposits than in the Ametista do Sul area of southern Brazil. The range of δ34S values (−15.0 to...world producers of amethyst and agate geodes (600 tons/month) are Brazil (Ametista do Sul) and Uruguay (Los |  | | Journal (article/letter/editorial) | | district, Paraná basaltic province, southernmost Brazil a a Viter Magalhães Pinto , Léo Afraneo Hartmann...Universidade Federal do Rio Grande do Sul , Porto Alegre, Brazil b CPRM – Geological Survey of Brazil , Porto Alegre...Alegre, Brazil Published online: 12 Feb 2010. To cite this article: Viter Magalhães Pinto , Léo Afraneo...district, Paraná basaltic province, southernmost Brazil, International Geology Review, 53:10, 1163-1179...district, Paraná basaltic province, southernmost Brazil 1938-2839 Geology Review, 0020-6814 TIGR International |  | Hartmann, Léo Afraneo, da Cunha Duarte, Lauren, Massonne, Hans-Joachim, Michelin, Cassiana, Rosenstengel, Leonardo Manara, Bergmann, Magda, Theye, Thomas, Pertille, Juliana, Arena, Karine Rosa, Duarte, Sandro Kucera, Pinto, Viter Magalhães, Barboza, Eduardo Guimarães, Rosa, Maria Luiza C.C., Wildner, Wilson (2012) Sequential opening and filling of cavities forming vesicles, amygdales and giant amethyst geodes in lavas from the southern Paraná volcanic province, Brazil and Uruguay. International Geology Review, 54 (1) 1-14 doi:10.1080/00206814.2010.496253 | Journal (article/letter/editorial) | | amygdales and giant amethyst geodes in lavas from the southern Paraná volcanic province, Brazil and Uruguay a...Federal do Rio Grande do Sul, Avenida Bento Gonçalves, Porto Alegre, Rio Grande do Sul, Brazil b Departamento...Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil c Institut für Kristallchemie...Geological Survey of Brazil (CPRM), Rua Banco da Província, Porto Alegre, Rio Grande do Sul, Brazil e Departamento...Geologia, Universidade Federal da Roraima, Rio Branco, Roraima, Brazil Published online: 06 Aug 2010. To cite |  | Arena, K.R., Hartmann, L.A., Baggio, S.B. (2014) Geological controls of copper, gold and silver in the Serra Geral Group, Realeza region, Paraná, Brazil. Ore Geology Reviews, 63. 178-200 doi:10.1016/j.oregeorev.2014.05.005 | Journal (article/letter/editorial) | | the Serra Geral Group, Realeza region, Paraná, Brazil K.R. Arena, L.A. Hartmann, S.B. Baggio PII: DOI:...the Serra Geral Group, Realeza region, Paraná, Brazil, Ore Geology Reviews (2014), doi: 10.1016/j.oregeorev... Paraná, Brazil MA NU Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Avenida...Gonçalves, 9500; 91501-970 Porto Alegre, Rio Grande do Sul, Brazil ED E-mail addresses: PT Karine da...Serra Geral Group, Realeza region, SC Paraná, Brazil MA NU Karine da Rosa Arena, Léo Afraneo Hartmann* |  | Baggio, S.B., Hartmann, L.A., Andrade, R.H.P., Rizzotto, G.J., Duarte, S.K., Knijnik, D.B., Simões-Neto, J.A. (2015) Basalt stratigraphy and silica gossans in Campo Grande and Serra de Maracaju, Mato Grosso do Sul, Paraná Volcanic Province. Ore Geology Reviews, 69. 73-87 doi:10.1016/j.oregeorev.2015.01.015 | Journal (article/letter/editorial) | | and silica gossans in Campo Grande and Serra de Maracaju, Mato Grosso do Sul, Paraná Volcanic Province...and silica gossans in Campo Grande and Serra de Maracaju, Mato Grosso do Sul, Paraná Volcanic Province...silica gossans in Campo Grande and Serra de Maracaju, T Mato Grosso do Sul, Paraná volcanic province...Instituto de Geociências, Universidade Federal do Rio Grande do Sul, Avenida Bento NU a SC R D.B. Knijnika...Agronomia; 91501-970 Porto Alegre, Rio Grande do Sul, b MA Brazil Departamento Nacional de Produção |  | Fulfaro, V. J., Saad, A. R., Perinotto, J. A. J., Etoherehere, M. L. C., Verolavsky, G. (1997) Paraná Basin: Mineral Resource Potentials in Brazil, Uruguay, and Paraguay. International Geology Review, 39 (8) 703-722 doi:10.1080/00206819709465297 | Journal (article/letter/editorial) | | com/loi/tigr20 Paraná Basin: Mineral Resource Potentials in Brazil, Uruguay, and Paraguay a a a V. J. Fulfaro ...Paulista (UNESP) , Caixa Postal 178, Rio Claro SP, 13506-900, Brazil b Institute de Geologia y Paleontologia...(1997) Paraná Basin: Mineral Resource Potentials in Brazil, Uruguay, and Paraguay, International Geology Review... Paraná Basin: Mineral Resource Potentials in Brazil, Uruguay, and Paraguay V. J. F U L F A R O , A...Paulista (UNESP), Caixa Postal 178, 13506-900 Rio Claro SP, Brazil Downloaded by [University of Colorado - |  | | 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,...morganite, 12.73 ct Swiss Blue topaz, 7.99 ct amethyst, 3.29 ct tourmaline, 2.40 ct aquamarine, 1.12...material was initially thought by some dealers to be amethyst. The first parcel that Hashmi learned about (through...Saint-Clair Fonseca Junior (BC Gemas do Brasil, Governador Valadares, Brazil), and heating to 500°C in air was |  | | Report (issue) | | of America PHOTO CREDITS Cover: Quartz variety amethyst, 10.5 cm tall Goboboseb Mountains, Erongo Region...collection, Jeff Scovil photo Title (facing) Page Amethyst mouse with gold tail, 130 grams, 6.3 cm wide Carved...Brazilian amethyst Private collection, Robert Weldon photo © 2009 GIA Page 2 Quartz variety amethyst, 3.5...3, Table of Contents Insets Top: Circa 212 CE amethyst intaglio bearing the portrait of Roman Emperor...Marie-Lan Nguyen photo Upper middle: Quartz variety amethyst (Japan-law twin), 1.6 cm tall Andilamena, Toamasina |  | | Book | | BARTORELLI ::• . . .. MINERALS & PRECIOUS STONES OF BRAZIL Sponsored by: VALE MINISTER.IO DA CULTURA ©...Crystal of multicolored tourmaline (84 x 26 mm), Lavra do Sapo, Ferruginha, Conselheiro Pena, Minas Gerais...(Camara Brasileira do Livro, SP, Brazil) Cornejo, Carlos .Minerals & precious stones of Brazil. Carlos Cornejo...pedras preciosas do Brasil Bibliography 1. Gemology 2. Geology 3. Minerals - Brazil 4. Minerals- Classification... Mineralogy 6. Mineralogy - Brazil - History 7. Precious stones - Brazil I. Bartorelli, Andrea. II. Title |  | | Report (issue) | | Huizing Calcite Crystals in Amethyst Vugs: Irai, Rio Grande do Sul, Brazil ..........84 Reinhard Balzer...than is strontianite and is much more soluble • ates do not react to cold, dilute hydrochloric acid. than...in flood basalts in the Brazilian state of Rio Grande do Sul (see page 84) and throughout the Deccan traps...spaces as (463). Faces that are parallel to an axis do not intersect it. The index for that axis is 0; thus...pseudomorph of hematite after calcite. Polyhedral Agate Brazil has produced specimens that appear, at first glance |  | | Journal (issue) | | sold on collecting calcite, this monograph should do it! An early, February 1939 Rock & Minerals magazine...to affordability.) CALCITE CaCO3, Quartz Var. Amethyst SiO2, Large Cabinet, Toldinho Mine, Entre Rios...Rios Prefecture, Santa Catarina State, Brazil, 2016 TGMS, © Chris Whitney-Smith. Illustrations of calcite...Brazilian localities; Irai and Frederico Westphalen, Rio Grande do Sul • Dalnegorsk, Primorskiy Kray,...almost out so if you have some you can donate please do. We are working on a rock dig for kids next to the |  | | Catalog/List | | know and covet such things; and his treasured Amethyst “Skunks.” Those are just some of the many exceptional...In the early 1980s Rock began to concentrate on Brazil and Peru with occasional trips to Uruguay, Chile...Another was the 7,500+ quartz in Minas Gerais, Brazil: a micromount collection. And of course, there..............................................196 Brazil..................................................knows what the lust for Red Cloud Wulfenites can do? Every time the place gets ‘worked’ the story is |  | | Book | | potential deposits of SiO2 raw materials in Argentina, Brazil, Germany and Norway. The third part of the book...collaboration between scientists from Australia, Brazil, Canada, Germany, Norway, Switzerland and the USA...Color-Enhancing of Gemological Crystalline Quartz in Brazil . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . 6.3.3 Quartz Color-Enhancing in Brazil. . . . . . . . . . . . . . . . . . . . . . 139...Geologia, Universidade Federal do Pernambuco (UFPE), Recife, PE 50740-530, Brazil Mario L. S. C. Chaves Departamento |  | 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) | | of detail and complexity required by the format to do of the seventh edition of System was too daunting...Luiz A. D. Menezes: Belo Horizonte, Minas Gerais, Brazil. William C. Metropolis: Mineralogical Museum, Harvard...a portion of the unit cell; constraints of space do not always allow showing the true cell repeats or...perspective for their position as shown. Thus they do not show the exact orientation of the center of the...to be widely spaced relative to cleavage and which do not occur everywhere within a specimen. Parting may |
|
Frederico Westphalen, Rio Grande do Sul, Brazil