 | Gilg, H. Albert, KrĂŒger, Yves, Taubald, Heinrich, van den Kerkhof, Alfons M., Frenz, Martin, Morteani, Giulio (2014) Mineralisation of amethyst-bearing geodes in Ametista do Sul (Brazil) from low-temperature sedimentary brines: evidence from monophase liquid inclusions and stable isotopes. Mineralium Deposita, 49 (7) 861-877 doi:10.1007/s00126-014-0522-7 | Journal (article/letter/editorial) | | mineralisation stages are distinguished. In stage I, celadonite, chalcedony and pyrite formed under reducing...Province in southern Brazil (Ametista do Sul) and Uruguay (Artigas), i.e. in rocks with low silica and radioactive...Sul, Brazil, and Artigas or sometimes named âLos Catalanes gem fieldâ, northern Uruguay. They are located...2003; Rosenstengel and Hartmann 2012), while in Artigas the amethyst geodes are hosted in Ti-poor Gramado-type...districts of Ametista do Sul, Brazil, and Artigas, Uruguay (from Gilg et al. 2003) a specific level |  | Hartmann, LĂ©o 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 MagalhĂŁes, Barboza, Eduardo GuimarĂŁes, 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 ParanĂĄ volcanic province, Brazil and Uruguay. International Geology Review, 54 (1) 1-14 doi:10.1080/00206814.2010.496253 | Journal (article/letter/editorial) | | southern ParanĂĄ volcanic province, Brazil and Uruguay a b c LĂ©o Afraneo Hartmann , Lauren da Cunha...southern ParanĂĄ volcanic province, Brazil and Uruguay, International Geology Review, 54:1, 1-14, DOI:...southern ParanĂĄ volcanic province, Brazil and Uruguay LĂ©o Afraneo Hartmanna *, Lauren da Cunha Duarteb...South America, not only in Brazil but also in Uruguay, Argentina, and Paraguay (Bellieni et al. 1984)...from Ametista do Sul (Brazil) and Los Catalanes (Uruguay), with commerce concentrated in Soledade, Brazil |  | | Report (issue) | | short prismatic Ametista do Sul, Brazil Artigas, Uruguay Cavities in sedimentary rocks less than...found at La Soberana Mine in Estancia La Soberana, Uruguay. Reinhard Balzer photo Facing page, left: High-salinity...Grande do Sul, Brazil, and in neighboring Artigas, Uruguay. Other large igneous provinces related to...the amethyst geodes at Ametista do Sul and at Artigas; thus indicating that it is not the chemical composition...giant protogeodes. Geochronological studies on celadonite, the green clay mineral rimming the cavities |  | 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 ParanĂĄ volcanic province. Mineralium Deposita, 46 (3) 239-255 doi:10.1007/s00126-010-0323-6 | Journal (article/letter/editorial) | | geodes in the Los Catalanes gemological district, Uruguay, southernmost ParanĂĄ volcanic province Lauren C...deposits of the Los Catalanes gemological district, Uruguay, constrain processes operative during mineral deposition...(600 tons/month) are Brazil (Ametista do Sul) and Uruguay (Los Catalanes). The cylindrical, prolate geodes...Catalanes gemological district have a thin rim of celadonite, but otherwise only silica minerals are present...core type I in (a) Following the deposition of celadonite, a layer of chalcedony was deposited, succeeded |  | | Catalog/List | | chlorite or celadonite inclusions, amethyst intermixed with citrine, red hematite, more green celadonite, then...Municipality, Western BoyacĂĄ Province, BoyacĂĄ Department, Colombia 16 cm tall x 14.5 cm wide 38 39...Calcite on Amethyst with Chalcopyrite, Artigas, Artigas Department, Uruguay 16 cm tall x 26.8 cm wide 43 |  | Gilg, H. Albert, Morteani, Giulio, Kostitsyn, Yuri, Preinfalk, Christine, Gatter, Istvan, Strieder, Adelir J. (2003) Genesis of amethyst geodes in basaltic rocks of the Serra Geral Formation (Ametista do Sul, Rio Grande do Sul, Brazil): a fluid inclusion, REE, oxygen, carbon, and Sr isotope study on basalt, quartz, and calcite. Mineralium Deposita, 38 (8) 1009-1025 doi:10.1007/s00126-002-0310-7 | Journal (article/letter/editorial) | | vertically elongated geodes display an outer rim of celadonite followed inwards by agate and colorless and ïŹnally...80337 MuÌnchen, Germany I. Gatter Mineralogical Department, EoÌtvoÌs University, PaÌzmaÌny PeÌter SeÌtaÌny...Budapest, Hungary A.J. Strieder Mining Engineering Department, Federal University of Rio Grande do Sul, Oswaldo...rocks, or geodes in basaltic lavas. Brazil and Uruguay are the world leaders in the production of gem...The Uruguayan amethyst deposits are located at Artigas in the northwestern part of the state near the |  | | Journal (article/letter/editorial) | | Mineralogist, Volume 97, pages 1284â1290, 2012 Celadonite in continental flood basalts of the Columbia...University of Idaho, Moscow, Idaho 83844-2339, U.S.A. Department of Geological Sciences, University of Idaho,...Moscow, Idaho 83844-3022, U.S.A. 1 2 Abstract Celadonite is a common alteration product of basalts in...been argued that marine fluids are necessary for celadonite formation, possibly by providing a source of...dissolved cations. Laterally extensive deposits of celadonite occur in basalts of the Grande Ronde Basalt of |  | Hartmann, L.A., Medeiros, J.T.N., Baggio, S.B., Antunes, L.M. (2015) Controls on prolate and oblate geode geometries in the Veia Alta basalt flow, largest world producer of amethyst, ParanĂĄ volcanic province, Brazil. Ore Geology Reviews, 66. 243-251 doi:10.1016/j.oregeorev.2014.11.005 | Journal (article/letter/editorial) | | gemological district in Uruguay. The volcanic province covers 915,000 km2 in Brazil, Uruguay, Argentina and Paraguay...type of the mineralized CatalĂĄn andesite ïŹow in Uruguay. The CatalĂĄn ïŹow lies directly over the Botucatu...fracture, and small geode; C = water, air; cel = celadonite, chalc = chalcedony, cl qz = clear quartz, ameth...geodes from Los Catalanes gemological district, Artigas, Uruguay, southern ParanĂĄ Magmatic Province. J. Volcanol...geodes in the Los Catalanes gemological district, Uruguay, southernmost ParanĂĄ volcanic province. Mineral |  | Götze, Jens, Hofmann, Beda, MachaĆowski, Tomasz, Tsurkan, Mikhail V., Jesionowski, Teofil, Ehrlich, Hermann, Kleeberg, Reinhard, Ottens, Berthold (2020) Biosignatures in Subsurface Filamentous Fabrics (SFF) from the Deccan Volcanic Province, India. Minerals, 10 (6) 540 doi:10.3390/min10060540 | Journal (article/letter/editorial) | | (Fe-oxides/-hydroxides, Fe-rich sheet silicates such as celadonite and di-/tri-smectite) to Ca-dominated (Ca-rich...in remarkable found the amethyst geodes of Artigas in Uruguay [6] and pseudo-stalactite aggregatesparts...stalactites were found in the amethyst geodes of Artigas in Uruguay [6] and pseudo-stalactite aggregates were...SEM micrograph of zone 3 showing platelets of celadonite worm-like textures; (d) transmitted light(d)...zoneagglutinated 3 showing agglutinated plateletsforming of celadonite forming worm-like textures; micrograph of acicular |  | | Catalog/List | | concentrate on Brazil and Peru with occasional trips to Uruguay, Chile, and Colombia. Besides buying, he started...Nikolaevskiy Mine, Dalnegorsk, Russia, 1993. "RPG," Artigas, Uruguay, acquired 2008. RHC #8000. Record and Rocks.............................................198 Uruguay .................................................often and are friends with the local sherifâs department. You igure the odds of extracting any more specimens...cluster with many bright dark turquoise colored celadonite [sic] crystals on matrix. There are only few |  | Ottens, Berthold, Götze, Jens, Schuster, Ralf, Krenn, Kurt, Hauzenberger, Christoph, Zsolt, BenkĂł, Vennemann, Torsten (2019) Exceptional Multi Stage Mineralization of Secondary Minerals in Cavities of Flood Basalts from the Deccan Volcanic Province, India. Minerals, 9 (6) 351 doi:10.3390/min9060351 | Journal (article/letter/editorial) | | analytical methods (Apoâapophyllite, Calâcalcite, Celâ celadonite, Qtzâquartz, Stbâstilbite, and Zeoâzeolite)....calcite, stilbite aggregates, and fine-grained celadonite masses were selected in the field and broken...were about 200 mg. Apophyllite, stilbite, and celadonite were dissolved in a mixture of HF:HNO3 = 4:1...[55]. Isotopic measurements were done at the Department of Lithospheric Research at the University of...completely filled up by secondary minerals such as celadonite, few centimeters large and are mostly completely |  | Baggio, SĂ©rgio Benjamin, Hartmann, LĂ©o Afraneo, Lazarov, Marina, Massonne, Hans-Joachim, Opitz, Joachim, Theye, Thomas, Viefhaus, Tillmann (2018) Origin of native copper in the ParanĂĄ 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) | | America, mainly Brazil but including portions of Uruguay, Argentina, and Paraguay (Fig. 1). The volumes...host basalt comprise smectite and, occasionally, celadonite. The occurrence of native copper in cavities...geodes from Los Catalanes gemological district, Artigas, Uruguay, southern ParanĂĄ Magmatic Province. J Volcanol...geodes in the los Catalanes gemological district, Uruguay, southernmost ParanĂĄ volcanic province. Mineral...QuaraĂ and Los Catalanes districts, Brazil and Uruguay. Geol Mag 147:954â970 Hartmann LA, Duarte LC, Massonne |  | | Journal (issue) | | Commission (NRC).The other side eventually became the Department of Energy. If a gem is made radioactiveduringirradiation...so far was 49 CFR 173.403 (XI, issued by the Department of Transportation: '"Radioactive material' means...Data Tables. Technical Information Center, U.S. Department of Energy. Koivula J. (1986)Solution coloration...Villforth J., Shultz G. (1970) Health Handbook. U.S. Department of Health, Education, and Welfare, January, 1970...Brazilian D.N.P.M. (National Department of Mineral Products) and its department heads in Para and Rio Grande |  | | Report (issue) | | in 1888, and Henry Miers (1858-1942) from the Department of Mineralogy at the British Museum (Natural...state of Santa Catarina, its southern border with Uruguay and its western border with Argentina; in the east...south from Parana, through Santa Catarina and into Uruguay. At the beginning of the 1 9th century, lapidary...gem rough. Buried Treasure in Irai Upper left: Celadonite is included in the crystals of this 13 cm wide...of the vugs is celadonite, a dioctahedral potassium, iron, magnesium mica. Celadonite is also the included |  | | Journal (issue) | | Quiruvilca mine, La Libertad, Peru Bella mine, Artigas, Uruguay Santa Rosa mine, Itambacuri, Brazil Fazenda...Japan-Law Twinning in Quartz by Robert B. Cook Department of Geology Auburn University Auburn, Alabama...Criminoso, Ivlinas Gerais, Brazil by Pete J. Dunn Department of Mineral Sciences Smithsonian Institution Washington...Washington, D.C. 20560 Peter B. Leavens Department of Geology University of Delaware Newark, Delaware...Mineral Occurences in the Bancroft Area, Ontario Department o f Mines, 65, Part 6, Toronto, 181 p. , MOYD |  | | Book | | several locations in Ri o Grande do Sul and even in Uruguay. Sambaquis are also found in the Amazonas region...contained in the objects belonging to the Geology Department of Cornell University. He died in 1878, at the...(1850-1922) , professor of the Botany and Geology Department of Indiana University, was a disciple of Charles...came to Brazil in 1935 invited by the National Department of Mineral Production. During the Second World...of Brazil, which in 1936 was renamed National Department of Mineral Production; lectured at the Escola |  | | Book (edition) | | Jachymov, Bohemia, Czech Rep. AM 88, 686-693, 2003. Celadonite K(Mg,Fe 2+)(Fe3 +,Al)[(OH) 2 1Si4 O 10] (9.E...59( 10) - 2.40(8). In contrast to glauconite, celadonite displays sharp diffraction lines. Abundant also...Moravia, abundant as earthy CELESTINE clay in celadonite deposit at Uhostirny, near Kadai'i, Bohemia,...basalts in Rio Grande do Sul, Brazil and near Artigas, Uruguay. In small crystals in cavities of andesite...From amygdaloidal basalts in southern Brazil and Uruguay. Enstatitc Mg 2 [Si2O6] (9.D, en talil group), |  | | Book | | PERU Laguna da Salinas near Arequipa, Arequipa Department. Around 2000, active mining at the Laguna da...BOLIVIA San Jose and Itos mines, Oruro, Oruro Department. Commercial mining for silver in the (adjoining...[Tama] Mountain, Nor Chichas Province, Potosi Department. Riddled with old mine workings, and now being...the Zheleznyi mine, employees of the mineralogy department of Leningrad State University collected the first...Ortega] mine, Huachuas, Lucanas Province, Ayacucho Department. In the high-altitude Javier mine, a 20 cmthick |  | 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) | | information should be addressed to the Permissions Department, John Wiley & Sons, Inc., 605 Third Avenue, New...the late Horace Winchell of Yale University, Department of Geology and Geophysics, and Brian J. Skinner...for Donald H. Lindsley (b.1934), mineralogist, Department of Earth Sciences, State University of New York...scherbakovite, wadeite, perovskite, and apatite, in a celadoniteâchlorite matrix. RG AM 70:872(1985). 8.7.10.1...Junin. At Irai, RGS, Brazil, and neighboring Artigas, Uruguay, white crystals of many forms occur inside |  | | Book (volume) | | and Eugene E. Foord Maine Geological Survey DEPARTMENT OF CONSERVATION Walter A. Anderson, State Geologist...Survey DEPARTMENT OF CONSERVATION 1994 Copyright ©1994 by the Maine Geological Survey, Department of Conservation...the United States prohibit discrimination in Department of Conservation programs and/or employment because...occurred should contact the Commissioner, Maine Department of Conservation, Station #22, Augusta, ME 04333;...Newport, Rhode Island Northeastern University, Department of Geological Sciences Library, Boston, Massachusetts |  | | Book (volume) | | York, N.Y.) USE Standard Oil Building (New York, Uruguay) th century 1 1 1 â â USE USE 9 dâOctubre...Coup d'6tat, 1799 18 de Julio Avenue (Montevideo, Uruguay) USE Avenida 18 de Julio (Montevideo, 18th century...[Former heading] Libraries Accession department Libraries Order department Trover and conversion BT âAcquisitions...influences Rio de la Plata Region (Argentina and Uruguay) Civilization Eastern Hemisphere travel influences...architecture Architecture, Capuchin â â United â Uruguay Italian influences Italy â Civilization Acoma |
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