| | Journal (article/letter/editorial) | john@jwkustos.com Figure 2. A skunk from Artigas, Uruguay, in which the amethyst crystals are aligned...Minerals. This amethyst on calcite skunk from Artigas, Uruguay, is certainly one of the finest examples known...3a and 3b. Amethyst on calcite skunk from Artigas, Uruguay. The specimen is 9.5 cm high. John S. White...photos. Figure 4. Large plate of amethyst from Artigas, Uruguay, with a pair of skunks showing subsequent...2015 Figure 8a Figure 8b cality known as Artigas, Uruguay; both localities occur in Lower Cretaceous | | | 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...oxidizing, the mineralization moved from celadonite-agate-pyrite-marcasite to a subsequent amethyst-goeth | | Gilg, H. Albert, Krüger, 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) | 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 “Los Catalanes gem field”, 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...partly banded microcrystalline quartz (chalcedony or agate). Sulphides are locally found in stage I and have | | 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) | southern Paraná volcanic province, Brazil and Uruguay a b c Léo Afraneo Hartmann , Lauren da Cunha...southern Paraná volcanic province, Brazil and Uruguay, International Geology Review, 54:1, 1-14, DOI:...southern Paraná volcanic province, Brazil and Uruguay Léo Afraneo Hartmanna *, Lauren da Cunha Duarteb...the world and has large deposits of amethyst and agate (calcite, gypsum) geodes. Specimen-quality minerals...South America, not only in Brazil but also in Uruguay, Argentina, and Paraguay (Bellieni et al. 1984) | | 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) | geodes in the Los Catalanes gemological district, Uruguay, southernmost Paraná volcanic province Lauren C...deposits of the Los Catalanes gemological district, Uruguay, constrain processes operative during mineral deposition...of amethyst and agate geodes (600 tons/month) are Brazil (Ametista do Sul) and Uruguay (Los Catalanes)...the Serra Geral Group, giant amethyst geodes and agate geodes occur in volcanic rocks that cover a large...Tübingen, Germany. The oxygen isotope composition of agate was measured using conventional extraction of oxygen | | | Journal (article/letter/editorial) | border, on Uruguayian territory. The trade names, Uruguay Amethysts and Siberian Amethysts, are accepted...Chico and Catalan Grande near the larger town of Artigas, very near the frontier. Near the Catalans is also...mine in the world producing, at present, the water agate or enhydros (agates containing large cavities filled...Palmeiras proper. Amethysts are found Inside of agate geodes and the geodes themselves are found partly...why those geodes which possess a thick layer of agate have insignificant amethysts lining their insides | | | Catalog/List | Municipality, Western Boyacá Province, Boyacá Department, Colombia 16 cm tall x 14.5 cm wide 38 39...matrix exhibit a band of unpolished green and white agate. Common begets uncommon. When excellence appears...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) | an outer rim of celadonite followed inwards by agate and colorless and finally amethystine quartz. Calcite...80337 München, Germany I. Gatter Mineralogical Department, Eötvös University, Pázmány Péter Sétány...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 | | | Show/Event (guide) | Ballroom W1 Large gemstone beads selection including agate, jade, coral, glass, bone, crystal and more. BEADS...BECKER STONES LLC Carlos Catala 372 Artigas, Artigas 55000 Uruguay Tel: +5-984-773-1666 www.beckerstones...Booth#: TNW1 Amethysts and other raw materials from Uruguay. BEST IN GEMS, INC. 6724 Perimeter Loop Rd. #307...TW35 Labradorite, rose quartz, fossils, amazonite, agate, spheres and points from Madagascar. MISEL Ribarska...PANIZZA MINERALS LLC Juan B. Torrej 456 Artigas, Artigas 55000 Uruguay Tel: +5-989-951-7047 Booth#: TNW3 | | | 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 .................................................have previously looked down their noses about “agate lickers” have had to seriously reconsider their...often and are friends with the local sherif’s department. You igure the odds of extracting any more specimens | | | Journal (article/letter/editorial) | pseudomorphs after garnet, but rare. ADglesite: Showing agate-like banding with some galena, from which it was...border, on Uruguayian territory. The trade names, Uruguay Amethysts and Siberian Amethysts, are accepted...Chico and Catalan Grande near the larger town of Artigas, very near the frontier. Near the Catalans is also...mine in the world producing, at present, the water agate or enhydros (agates containing large cavities filled...Palmeiras proper. Amethysts are found Inside of agate geodes and the geodes themselves are found partly | | 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, Paraná volcanic province, Brazil. Ore Geology Reviews, 66. 243-251 doi:10.1016/j.oregeorev.2014.11.005 | Journal (article/letter/editorial) | The world's largest production of amethyst and agate geodes comes from mines in the Paraná volcanic province...gemological district in Uruguay. The volcanic province covers 915,000 km2 in Brazil, Uruguay, Argentina and Paraguay...basalt and some rhyodacite at depth. Amethyst and agate geodes occur in several geochemical types of basalts...type of the mineralized Catalán andesite flow in Uruguay. The Catalán flow lies directly over the Botucatu...geodes from Los Catalanes gemological district, Artigas, Uruguay, southern Paraná Magmatic Province. J. Volcanol | | | Journal (article/letter/editorial) | Torch, from the Santiño mine, Catalan Grande, Artigas, Uruguay. Paradise Woods specimen, Russ Behnke photo...rock shop in Great Falls, Montana, has a Montana agate cabochon attached to it. The drawing is by well-known | | | Journal (article/letter/editorial) | W ord to the Wise Geode JOHN RAKOVAN Department of Geology and Environmental Sciences Miami University...(volcanic) geode, with a thicker chalcedony rind (agate) than seen in figure 2, lined with smoky quartz...(fig. 3), which are common in Mexico, Brazil, Uruguay, and other countries, are essentially large amygdules...geodes from Los Catalanes Gemological district, Artigas, Uruguay, southern Paraná Magmatic Province. Journal | | 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) | Basin: Mineral Resource Potentials in Brazil, Uruguay, and Paraguay a a a V. J. Fulfaro , A. R. Saad...Universidad de la República , Montevideo, 11200, Uruguay Published online: 06 Jul 2010. To cite this article:...Basin: Mineral Resource Potentials in Brazil, Uruguay, and Paraguay, International Geology Review, 39:8...Basin: Mineral Resource Potentials in Brazil, Uruguay, and Paraguay V. J. F U L F A R O , A. R. S A A...Universidad de la República, 11200 Montevideo, Uruguay Abstract The Parana Basin is a Western Gondwanan | | | Journal (article/letter/editorial) | Scovil photo. MarcWApril: Amethyst and calcite, Artigas, Uruguay. Rock H. Currier specimen, Harold and Erica...Jeff Scovil photo. Adularia, Michigan, I10 Agate, Uruguay, 94 Ajoite, Arizona, 23 Albite, California...California, 160; Maine, 46 Amethyst, Agate, and Calcite “Skunks” from Uruguay, R. H. Currier, 94-105 Ankerite...Michigan, 110; Missouri, 370-77, 379-82, 404, 421; Uruguay, 94: Wiscon- sin, 346 Caledonite, Arizona, 26... 23 Currier, R. H., Amethyst, Agate, and Calcite ‘Skunks” from Uruguay, 94-105; Calcite and Marcasite | | 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) | indicating the presence of calcite, amethyst and agate geode deposits along with native copper mineralization...readily locate favorable areas for MA amethyst and agate geode deposits and native copper mineralization...of 917,000 km2 (Frank et al., 2009) in Brazil, Uruguay, Argentina and Paraguay (Fig.1) with a lava volume...The world´s MA largest deposits of amethyst and agate are hosted in rocks from the two magma types. The...Ametista do Sul in Brazil and Los D Catalanes in Uruguay (Juchem et al., 2010; Silva, 2010). Native copper | | 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) | and are well known as host rocks of amethyst and agate mineralization and occurrences of native copper...Geral Group is the host of world class amethyst and agate deposits and may also contain large deposits of...their filling with amethyst and agate. The main deposits of amethyst and agate (Duarte et al., 2009; Hartmann...geodes from Los Catalanes gemological district, Artigas, Uruguay, southern Paraná Magmatic-Province. Journal...Quaraí and Los Catalanes districts, Brazil and Uruguay. Geological Magazine 147, 954-970. Hartmann, L | | | Catalog/List | Heritage Auctions, Inc. 15021 Natural History Department Steve Ivy CEO Co-Chairman of the Board David...Courtney Case, Ext. 1293 CourtneyC@HA.com Credit Department Marti Korver, Ext 1248 Marti@HA.com Michael...in half to create a matched pair; with polished agate edges, it has excellent purple color and large gemmy... 38002 AMETHYST CAST AFTER CALCITE Artigas, Artigas Department, Uruguay Perched on top of a mound of rich...“PORTA JOIA” WITH CALCITE CRYSTAL Artigas, Artigas Department, Uruguay A “porta joia” is a “jewel box” | | | Journal (article/letter/editorial) | Mining Company African Opal from Ethiopia Agate Trader Agate West Alpine Mineral Company Alternate Minerality...Anosov, Mikhail, Minerals and Fossils Arkenstone Artigas Artistry in Stone Attard’s Minerals Aurora Mineral...Green Mountain Minerals Grenville Minerals Harmon’s Agate & Silver Haynes, Patrick Haywood, Bill Heirloom | | | Catalog/List | Minshull Chief Operating Officer DIRECTORY FOR DEPARTMENT SPECIALISTS AND SERVICES COINS & CURRENCY COINS...V.P. Auction Operations Norma@HA.com CREDIT DEPARTMENT Marti Korver, Ext 1248 Marti@HA.com Eric Thomas...online. 53001 AMETHYST PORCUPINE Artigas, Artigas Department, Uruguay An Amethyst ‘porcupine’ of colorless...District, Castrovirreyna Province, Huancavelica Department, Peru Over 14 colorless Japan-Law Quartz twins...District, Castrovirreyna Province, Huancavelica Department, Peru An unusual association: a large Japan-Law | | | Book | had an impressive collection of minerals and agate and agate-like minerals. To me, the “Swan” is a pleasant...was shocked when I saw the 6.5 inch “Solar Storm” agate from Greasy Cove in Tennessee. Ken Thurston, its...red banding is topof-the-line. Most Paint Rock agate comes in small pieces, is completely fractured and...gift from Lawrence H. Conklin, a fellow Laguna agate collector and mineral dealer. This slice is far...quite like it. The 3.5-inch-tall “Rooster” Laguna agate shown above, is from a relatively recent find. I | | | Show/Event (guide) | Ballroom W1 Large gemstone beads selection including agate, jade, coral, turquoise, glass, bone, crystal and...33176 USA Tel: 011-3220-2071 Booth#: E301 Onyx, agate, rhodochrosite carvings etc. LUCORAL AND LUPEARL...semi-precious stones and beads. URUGUAY MINERALS By Pass 354 Artigas, Artigas 55000 Uruguay Tel: 598 477 33073 www | | | Report (issue) | p 549.6 A 263 AGATE Physical Properties and Origin BY OLIVER C. FARRINGTON Curator op Geology Archaeology... Early Geological History of Chicago 25 8. Agate 50 9. How 2. 3. . . 10 . . old are Fossils...FORTIFICATION ' ' AGATE. URUGUAY. ARTIFICIALLY COLORED. Field Museum of Natural History DEPARTMENT OF GEOLOGY...GEOLOGY Chicago, 1927 Number Leaflet Agate—Physical 8 Properties and Origin a variety of chalcedony...made up of a great number of exceedingly thin Agate guished by is As layers which appear as bands | | | Journal (issue) | Vietnam • Gem zektzerite • “Coral Sea” agate • Dendritic agate in doublets and jewelry • Diamond mining...of Vadim Fedder; photos by Matteo Chinellato. Department of the University of Milan. We used a JEOL JXA-8200...range were performed at the Materials Science Department of the University of Milan-Bicocca with a PerkinElmer...is a postdoctoral fellow in the Earth Sciences Department at the University of Milan. Dr. Diella is a senior...Pogliani and Dr. Giorgio Spinolo (Materials Science Department, University of Milan-Bicocca) for assistance |
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Artigas, Artigas Department, Uruguay