 | | Report (issue) | | short prismatic Ametista do Sul, Brazil Artigas, Uruguay Cavities in sedimentary rocks less than...Above: Quartz variety amethyst, 12.6 cm wide Rio Grande do Sul, Brazil Gene and Roz Meieran collection...found at La Soberana Mine in Estancia La Soberana, Uruguay. Reinhard Balzer photo Facing page, left: High-salinity...basalt province in Rio Grande do Sul, Brazil, and in neighboring Artigas, Uruguay. Other large igneous...the amethyst geodes at Ametista do Sul and at Artigas; thus indicating that it is not the chemical composition |  | 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) | | varies from −0.9‰ in the southeastern portion (Rio Grande do Sul state) to 1.9‰ in the central portion (Paraná...1 Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil 2 Leibniz Universität...America, mainly Brazil but including portions of Uruguay, Argentina, and Paraguay (Fig. 1). The volumes...region, near the town of Frederico Westphalen (Rio Grande do Sul state), encouraged Costa (1982) to use geophysical...Supplementary Material (ESM 1) and shown in Fig. 1. In Rio Grande do Sul state, dendritic native copper on the surface |  | | 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, 156;...46 Amethyst, Agate, and Calcite “Skunks” from Uruguay, R. H. Currier, 94-105 Ankerite, Missouri, 421;...Michigan, 110; Missouri, 370-77, 379-82, 404, 421; Uruguay, 94: Wiscon- sin, 346 Caledonite, Arizona, 26...Chapman, A. H., see In Memoriam Chips from the Quarry, M. E. Huizing, 5, 85, 149,213,295 Chloalite, Arizona |  | | Journal (issue) | | remained forgotten and not analyzed until recently. Hematite pseudo after magnetite, Volcan Payun Matru, Malargiie...Amethyst and calcite, La Bo Isa, Artigas, of poldervaartite). The new Uruguay specimens are more attractive...likely seen more quartz var. amethyst from Rio Grande do Sul than you would ever want and with a minimal...better luster) from Artigas in Uruguay. Recently specimens have come from several Artigas deposits with good...crystals on the calcite. Specimens from La Bolsa (Artigas, Uruguay) have irregular patches of "sugar" arresting |  | | 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 sherif’s department. You igure the odds of extracting any more specimens...couldn’t believe everything he said. He lived in Casa Grande with his wife Helen and by most standards would |  | | Book | | Amethyst flower (85 x 60 mm), Ametista do Sul, Rio Grande do Sul. Collection of Luiz Alberto Dias Menezes...577 The Pegmatitic Province of Paraiba, Rio Grande do Norte and Ceara 586 Uvites of extraordinary colors...Archean and Pah:oproterozoic Grecnstone Bdts: hematite, pyrolusite, cryptomelane, romanechite, goethite...Velho; and uvite, the twinned "Japan law" quartz, hematite, magnesite, dolomite, novacekite and metazeunerite...agate and amethyst claims of the tablelands of Rio Grande do Sul. The book covers aspects related essentially |  | | Book | | the National Department of Mineral Production . Dr. Octavio Barbosa, of the same Department, contributed...of Rio Grande do Sul, Baia, Paraiba and Ceara.; of diatomite in Pernambuco, Rio Grande do Norte and Ceara... approval of the Government, after the Na�ional Department of Mineral Production have been heard ; IV -...concessions will not be attended to by the National Department of Mineral Production until interested parties...parties have depos ited with the same Department an amount in money equal to the value of the stamp re qu |  | | Journal (article/letter/editorial) | | Amethyst with minimal subsurface inclusions of hematite from the Thunder Bay Amethyst mine, collected...often distinctive due to microscopic subsurface hematite inclusions that, when abundant, can impart a pronounced...specimen material on the market from Brazil and Uruguay. In recent years, however, the presence of quality...Bay amethyst (1984), Colorado quartz (1991), Del Norte thunder eggs (2002), and Utah geodes (2015). He...Chalcopyrite (1,2,3,5) Galena (1,2,5) Marcasite (1,2,5) Hematite (4) Kaolinite (3) Pyrite (1) Quartz; Quartz v |  | Costa, Fabiana Pereira da, Fernandes, Jucielle Veras, Melo, Luiz Ronaldo Lisboa de, Rodrigues, Alisson Mendes, Menezes, Romualdo Rodrigues, Neves, Gelmires de Araújo (2021) The Potential for Natural Stones from Northeastern Brazil to Be Used in Civil Construction. Minerals, 11 (5) 440 doi:10.3390/min11050440 | Journal (article/letter/editorial) | | (PPG-CEMat), Materials Engineering Department, Federal University of Campina Grande, Av. Aprígio Veloso - 882...882, Bodocongó, Campina Grande, PB 58 429-900, Brazil; fabiana.costa@estudante.ufcg.edu.br (F.P.d.C.); ...University of Campina Grande, Av. Aprígio Veloso - 882, Bodocongó, Campina Grande, PB 58 429-900, Brazil...Limoeiro do Norte Limoeiro do Norte Limoeiro do Norte Limoeiro do Norte Limoeiro do Norte Santa Quitéria...by some granites was probably associated with hematite inclusions in the feldspar [40]. The presence |  | | Report (issue) | | ======================== I first saw the new hematite-included quartz from Aouli, Khenifra Province...medium-red interior backgrounds. Quartz included by hematite, 10.7 cm, from Aouli, Khenifra Province, Meknes-Tafilalt...euclase from Alto Santino near Ecuador, Rio Grande do Norte, Brazil. Yes, these are the lovely, classic... Equador, Borborema mineral province, Rio Grande do Norte, Brazil. Mineral One specimen and photo. 10...Quiruvilca, Santiago de Chuco Province, La Libertad Department, Peru. Large numbers of orpiment specimens came |  | | Report (issue) | | Bulletin No. 113 of the Di\ision of IMines of the Department of Natural Resources, on the I "JVIinerals of...Respectfully submitted. George D. Nokdenholt, Director, Department of Natural Resources. November 1, 1937. (5)...(5) -STATE- 0F•CAL1F0RN[A •DEPARTMENT•DFNATURAL•RES0URCE3• GEQRGE NDRDENHOLT D. DIRECTOR- - ...from Copperopolis and Campo Seco. Calaveras Del Norte County: schists. Foliated plates of graphite are...constituent of the limestone near Colton and near Oro Grande. It occurs in nodular masses and veins in schist |  | | Journal (article/letter/editorial) | | Instituo Dom Luiz, Universidade de Lisboa, Campo Grande,1749-016, Lisbon, Portugal Instituto de Astronomia... The main magnetic carriers are magnetite and hematite, probably of authigenic origin. The mean paleomagnetic...Luiz, Universidade de Lisboa, Edifício C8, Campo Grande, 1749-016, Lisbon, Portugal. Tel.: + 351 21 75...tectonic terranes in southern Brazil and northeastern Uruguay (modified from Rostirolla et al., 1999); C) eastern...sampled along a local dirt road from Apiúna to Vargem Grande in an area near the Fazenda Santa Luzia (site 7; |  | | Journal (article/letter/editorial) | | Janeiro............................... 301 Rio Grande do Norte.............................................................. 305 Geologic maps of Rio Grande do Norte..............................................Bibliography of the geology ofRio Grande do N orte.................. 305 Rio Grande do .Sul.......................................... 308 Geologic maps of Rio Grande do Sul................................................... 308 Bibliography of the geology ofRio Grande do Sul........................ 309 Santa Catharina |  | Renac, Christophe, Mexias, André Sampaio, Gomes, Márcia Elisa Boscato, Ronchi, Luiz Henrique, Nardi, Lauro Valentin Stoll, Laux, Jorge Henrique (2014) Isotopic fluid changes in a Neoproterozoic porphyry–epithermal system: The Uruguay mine, southern Brazil. Ore Geology Reviews, 60. 146-160 doi:10.1016/j.oregeorev.2013.12.016 | Journal (article/letter/editorial) | | Neoproterozoic porphyry–epithermal system: The Uruguay mine, southern Brazil Christophe Renac a,⁎, André...Instituto de Geociências, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Gonçalves, 9500, CEP...Pan-African Orogenic Cycle. This study focused on the Uruguay open-pit mine through a detailed assessment of...All rights reserved. 1. Introduction In the Rio Grande do Sul (RS), the southernmost state of Brazil,...The Minas do Camaquã mine, with the Santa Maria, Uruguay and São Luiz pits, was exploited from the beginning |  | Franchini, M., Lira, R., Meinert, L., Rios, F. J., Poklepovic, M. F., Impiccini, A., Millone, H. A. (2005) Na-Fe-Ca Alteration and LREE (Th-Nb) Mineralization in Marble andGranitoids of Sierra de Sumampa, Santiago del Estero, Argentina. Economic Geology, 100 (4) 733-764 doi:10.2113/gsecongeo.100.4.733 | Journal (article/letter/editorial) | | (5000) Córdoba, Argentina LAWRENCE MEINERT, Department of Geology, Smith College, Northampton, MA 01063...Argentina Abstract The Jasimampa area in the Sierra Norte de Córdoba of Argentina contains light rare earth...Albite (Ab97-99) + aegirine (Ae70-92Ja1-11Q6-19) ± hematite ± Mg-arfvedsonite ± fluorine-rich apatite and...carbonates associated with iron and manganese oxides, hematite, and traces of sulfides (sphalerite, pyrite, galena)...associated with a second generation of fine-grained hematite, barite, and celestine. Structural controls on |  | Tristá-Aguilera, Dania, Barra, Fernando, Ruiz, Joaquin, Morata, Diego, Talavera-Mendoza, Oscar, Kojima, Shoji, Ferraris, Fernando (2006) Re–Os isotope systematics for the Lince–Estefanía deposit: constraints on the timing and source of copper mineralization in a stratabound copper deposit, Coastal Cordillera of Northern Chile. Mineralium Deposita, 41 (1) 99-105 doi:10.1007/s00126-006-0048-8 | Journal (article/letter/editorial) | | de Ciencias Geológicas, Universidad Católica del Norte, Av Angamos 0610, Casilla 1280, Antofagasta, Chile...Chile e-mail: datrista@ucn.cl F. Barra . J. Ruiz Department of Geosciences, The University of Arizona, Tucson...inference, the Cu sulfides that contain this Os. Late hematite occurs as an isolated phase or, more commonly...chalcocite–covellite associations. Analyses performed on pure hematite indicate a disturbance of the Re–Os system, and...(Bn) and chalcocite (Cc), and late intergrown hematite (Hm) 102 Mineral association Os (ppt) Re (ppb) |  | Souza Neto, João Adauto, Legrand, Jean Michel, Volfinger, Marcel, Pascal, Marie-Lola, Sonnet, Philippe (2008) W–Au skarns in the Neo-Proterozoic Seridó Mobile Belt, Borborema Province in northeastern Brazil: an overview with emphasis on the Bonfim deposit. Mineralium Deposita, 43 (2) 185-205 doi:10.1007/s00126-007-0155-1 | Journal (article/letter/editorial) | | Departamento de Geologia, Universidade Federal do Rio Grande do Norte, Campus Universitário, Lagoa Nova, CEP 59.072-970...amounts of garnet, biotite, plagioclase, as well as hematite within fractures and scheelite, which forms small...skarn deposit is situated in the state of Rio Grande do Norte, northeastern Brazil, about 27 km southeast...chlorite, apatite, zircon, magnetite, and minor hematite and ilmenite. They also contain amphibolite lenses...primary magnetite, which is mostly altered to hematite. No evidence of metasomatic alteration or endoskarn |  | | Catalog/List | | the grains and a few more scattered about. Caspar Quarry, Bellerberg bei Mayen, Yulkaneifel, Rheinland Pfalz...about 12x5mm in the middle of the vein. Crestmore Quarry, Riverside County, California USA £17 35. SODALITE...about 8mm across Alto do Giz, Equador Rio Grande do Norte Brazil Al., Ta 3 0 13 (OH) white FLUORESCENCE...Bluff Prospect Maquette County Michigan, USA) 6 I. HEMATITE small sharp black lustrous "specularite" crystals...this location closed many years ago. Boyleston quarry Barrhead Scotland £6 80. ANALCIME good coverage |  | | Journal (article/letter/editorial) | | halite and sylvite in felsic granitoids, Sierra Norte, Córdoba, Argentina Raúl Lira a,⁎, María F. Poklepovic...Sarsfield 299, X5000JJC, Córdoba, Argentina c Department of Geological Sciences, Brigham Young University...rocks of the Late Cambrian–Early Ordovician Sierra Norte–Ambargasta batholith in the Eastern Sierras Pampeanas...minerals from some unusual aplites from the Sierra Norte of Córdoba, Argentina, abundant dendritic solid...monzogranitic unit from the ca. 8000 km 2 Sierra Norte–Ambargasta batholith (SNAB). This batholith constitutes |  | | Catalog/List | | $400-$600 53003 TOURMALINE Himalaya Mine, Mesa Grande, San Diego County, California, USA San Diego County...2013 | 12:00 PM CT 11 53006 CALCITE Dhindori Quarry, Jalgaon, Dindori (Dhindori), Nashik District (Nasik...beguiling in a strange way. Near the base is a Hematite Eisenrose doing its best to appear inconspicuous...$1,000-$1,400 53015 MILLERITE Milwaukee Cement Quarry, Milwaukee, Milwaukee Co., Wisconsin, USA Nature...kind of thing one would expect to find in a cement quarry, even if it is in Wisconsin. But Nature will not |  | | Journal (article/letter/editorial) | | yielding a characteristic remanence carried by hematite. A primary origin for the remanence is suggested...of red claystones of Ediacaran age exposed in a quarry at the Sierra de los Barrientos (province of Buenos...extends from the southern states of Brazil (e.g. Rio Grande do Sul) to the south of the province of Buenos...not known here. The study section is exposed in a quarry at Sierra de los Barrientos (37.8◦ S, 59.0◦ W,...the succession of red claystones exposed in the quarry at Los Barrientos. Samples were oriented by means |  | | Journal (volume) | | org/details/californiajourna40cali STATE OF CALIFORNIA DEPARTMENT OF NATURAL RESOURCES DIVISION OF MINES FERRY...Retired, was appointed, February 4, Director of the Department of Natural Resources by Governor Earl Warren...Current Mining Activity in Plumas County ; also Department of the Interior InformaAccessions to the tion...locally injected lit-par-lit by pegmatitic granite. Hematite-bearing metasediments of probable Paleozoic age...in the intervals, Dr. Cordell Durrell of the Department of Geology, University of California, Los Angeles |  | | Show/Event (guide) | | and displaying one of the first great rutile on hematite specimens from Brazil—an event matched, in my...Dunn. 4:30 B l u e wavellite from the De Linde quarry, Garland, County, Arkansas. S. L. Hanson, A. U...currently the lab coordinator and instructor in the Department o f Geological & Mining Engineering & Sciences...degrees by mixtures of anatase, brookite, rutile, hematite, and titanite. Apatite, clinochlore, feldspar...Street North, Wisconsin Rapids, Wisconsin 54494, 'Department o f Earth and Environmental Sciences, University |  | Romero, Bárbara, Kojima, Shoji, Wong, Chilong, Barra, Fernando, Véliz, Walter, Ruiz, Joaquin (2011) Molybdenite Mineralization and Re-Os Geochronology of the Escondida and Escondida Norte Porphyry Deposits, Northern Chile. Resource Geology, 61 (1) 91-100 doi:10.1111/j.1751-3928.2010.00150.x | Journal (article/letter/editorial) | | Re-Os Geochronology of the Escondida and Escondida Norte Porphyry Deposits, Northern Chile Bárbara Romero...Joaquin Ruiz3 1 Department of Geological Sciences, University of Católica del Norte, 2Minera Escondida...Escondida Ltd, Antofagasta, Chile and Department of Geosciences, University of Arizona, Tucson, Arizona, USA...Mo-bearing mineral in the Escondida and Escondida Norte deposits were characterized using several mineralogical...0.2 Ma, respectively. Re-Os dating of Escondida Norte molybdenites also show two distinct episodes, at |  | | Journal (article/letter/editorial) | | Gilpin County Devils Hole Mine, Fremont County Del Norte-Twin Mountains, Saguache County Dinosaur National...across, showing unusually bright red color; near Del Norte; collected 1975 by Dan and Dianne Kile; cut by Dan...chalced ony; from thunder egg collected near Del Norte by Dan and Di anne Kile; field of view 1 cm; Dan...Arkansas, quartz mines or the Rio Grande do Sul, Brazil, and Uruguay ame thyst districts, the state is...South Platte district Devils Head Jefferson Del Norte Houselog Creek L a Junta ParkerFranktown area Eastern |
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