 | | Report (issue) | | N’Chwaning III mine, Kuruman manganese field, Cape Province, South Africa. Rocks of Africa specimen and photo...N’Chwaning III mine, Kuruman manganese field, Cape Province, South Africa. Now a few more crystals from that...cm, from Linglong, Jiaodong Peninsula, Shandong Province, China. Fabre Minerals specimen and photo. Then...gold field on the Jiaodong Peninsula, Shandong Province, China. Not exactly (yet) a standard collector’s...Liddicoatite, 3.4 cm, from near Ibity, Antananarivo Province, Madagascar. Khyber Mineral Company specimen and |  | Cunningham, C.G., Aparicio N., Hugo, Murillo S., Fernando, Jimenez, Nestor C., Lizeca B., J. L., McKee, E.H., Ericksen, G.E., Franz, Tavera V. (1994) The relationship between the Porco, Bolivia, Ag-Zn-Pb-Sn deposit and the Porco caldera. Open-File Report Vol. 1994 (94-238) US Geological Survey doi:10.3133/ofr94238 | Report (issue) | | relationship between the Porco, Bolivia, Ag-Zn-Pb-Sn deposit and the Porco caldera by Charles G. Cunningham1...108, Potosi, Bolivia 3Servicio Geol6gico de Bolivia (GEOBOL), Casilla 2729, La Paz, Bolivia 4U.S. Geological...National Center, Reston, Virginia 22092 Abstract The Porco Ag-Zn-Pb-Sn deposit, a major Ag producer in the...producer in Bolivia, consists of a swarm of fissure-filling veins in the newly recognized Porco caldera....the eruption of the 12 Ma crystal-rich dacitic Porco Tuff. Well-defined topographic walls of the caldera |  | | Journal (article/letter/editorial) | | the Ag-Sn Formation located within Argentina and Bolivia have been investigated mineralogically and geologically...Argentina, respectively. The Geological Survey of Bolivia contributed through help with the logistics. The...the wide-spread occurrence of tin minerals (cassiterite, stannite, kësterite, ferrokësterite, hocartite-pirquitasite)...related to the presence of indium-rich sphalerite, cassiterite, petrukite and sakuraiite. The polymetallic deposits...be mentioned. The vein-type deposits of the Sierra de Famatina (Mejicana and Upulungus veins) carry gold- |  | | Journal (article/letter/editorial) | | El Dragón Selenium Mineralization, Quijarro Province, Potosí, Bolivia Günter Grundmann 1 and Hans-Jürgen...Hans-Jürgen Förster 2, * 1 2 * Eschenweg 6, DE-32760 Detmold, Germany; grundmann.g@gmx.de Helmholtz Centre Potsdam...Potsdam German Research Centre for Geosciences GFZ, DE-14473 Potsdam, Germany Correspondence: forhj@gfz-potsdam...by volcanic-hydrothermal activities around the Porco caldera, formation of the mineralization involved...penroseite; vaesite; genetic sequence; El Dragón; Bolivia 1. Introduction Research on selenium minerals |  | | Report (issue) | | No. 12: Bolivia ht of Mineral Collecting N 978-0-9790998-5-4 Publisher Lithographie, LLC Denver, Colorado...specimen 'being sold with the shrine when he was in Bolivia buying mineral specimens in the 1970s. He took...ophyllite; 5. 2 cm tall Cerro Rico, Potosi, B,atillo province, Potosi Andy Seibel col/action Jejf-SC,m/.plwto...Yaalte: 12.5 cm wide Siglo XX Mine, ,U� Bustillo province, Potosi Malty Zinn colkdknt (ex Marv Rausch) Jase...Behnke, Joe Budd, Michael Canoy Rock Currier, Frank de Wit, Jordi Fabre, Mark Garcia, Tino Hammid Jaroslav |  | | Journal (article/letter/editorial) | | deposits of Miocene age in the Eastern Cordillera in Bolivia were studied by ICP/MS and EPMA for major and minor...and 0.3 for Tuntoco deposit, 152 ppm and 1.8 for Porco deposit, 103 ppm and 59.2 for Animas deposit, and...584 ppm and 1.7 at Bolivar; 499 ppm and 1.23 at Porco; 449 ppm and 1.21 at Reserva, and 213 ppm and 0...concentration of trace amounts of indium. Keywords: Bolivia, indium, petrukite, polymetallic, Potosi, sphalerite...Paz PERU Oruro Sn-polymetallic ore belt Arica BOLIVIA Potosi CHILE Lake Uyuni Border Cities Atocha |  | | Report (issue) | | . . . . . . . . . . . . . . . . . . . . . 26 Bolivia . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . 29 Bolivia . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . 33 Bolivia . . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . . 34 Cerro de Pasco . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . 35 Bolivia . . . . . . . . . . . . . . . . . . . . . . . |  | | Journal (issue) | | Enluminees, and also his second book, Collection de Planches (i.e. 120 plates, 60 colored and 60 uncolored)...oland Bounds, President, 315 Stam ford Dr., Newark, DE 19711; Tel: (302) 731-8407; e-mail: 25628@ udel.edu...livia Alfredo Petrov Casilla 1728 Cochabamba, Bolivia e-mail: alfredopetrov@earthlink.net Bill and Carol...Colorado 80020 e-mail: smith72@attglobal.net Bolivia, a landlocked nation three times as large as M...this gazetteer. INTRODUCTION Most people think of Bolivia as a land of great mountain ranges and high cold |  | Cunningham, Charles G., Aparicio N., Hugo, Murillo S., Fernando, Jimenez C., Nestor, Lizeca B., Jose Luis, McKee, Edwin H., Ericksen, George E., Tavera V., Franz (1994) Relationship between the Porco, Bolivia, Ag-Zn-Pb-Sn deposit and the Porco Caldera. Economic Geology, 89 (8) 1833-1841 doi:10.2113/gsecongeo.89.8.1833 | Journal (article/letter/editorial) | | 1833-1841 Relationship betweenthe Porco,Bolivia,Ag-Zn-Pb-SnDeposit and the Porco Caldera CHAMPS G. CUNNINGHAM...Potosi,Bolivia FERNANDO MURILLO S.,NkSTOR JIMf•NEZ CH., Josf•LuISLIZECAB., ServicioGeoldgico de Bolivia(GEOBOL)...Bolivia(GEOBOL),Casilla2729, La Paz,Bolivia EDWIN H. McKEE, U.S.Geological Survey,345 MiddlefieldRoad,MenloPark...TAVERA V. ServicioGeoldgico de Bolivia(GEOBOL),Casilla2729, La Paz,Bolivia Abstract The PorcoAg-Zn-Pb-Sn...16th centuryandcurrently the majorZn producerin Bolivia,consists of a swarmof fissure-filling veinsin the |  | | Book | | secure workers. The author uses Potosí, in the mountains of present-day Bolivia, as a case study. The richest...richest single colonial-era silver mine, Potosí experienced a secondgeneration boom as a rich source of tin...978-0-8263-5107-4 (electronic) 1. Silver mines and mining—Bolivia—Potosí—History. 2. Mines and mineral resources—Latin...Lure of Gold, the Wealth of Silver 1 Chapter 2 Potosí and Colonial Latin American Mining 15 Chapter...250 Graphs, Figures, and Maps . Graphs 1. Potosí silver output from 1545 to 1810 17 2. Spanish |  | | Journal (article/letter/editorial) | | Metallogenetic Epochs and Provinces of Bolivia The Tin-Province (Part I) The Metallogenetic Provinces...the Altiplano (Part II) F. A~LFELD Cochabamba, Bolivia Partf. An attempt is made to solve the relationships...formation of ore deposits using the Bolivian tin-province as an example. In the eastern Cordillera we are...tin-silver mineralization is discussed. Within the tin-province three metallogenic epochs are recognized, with...down-faulted and consequently preserved. The polymetallic province of the Altiplano contains subvolcanic ore deposits |  | | Report (issue) | | 589(1) Z=4 X-ray Powder Pattern: Machacamarca, Bolivia. 3.02 (100), 1.863 (50), 2.66 (40), 3.14 (30),...Total 99.95 99.68 100.00 (1) Chocaya, Bolivia. (2) Aullagas, Bolivia. (3) Ag8 GeS6 . Polymorphism & Series:...Germany); in high-temperature Sn–Ag deposits (Bolivia). Association: Canfieldite, stephanite, acanthite...diaphorite, marcasite, pyrite, galena, sphalerite, cassiterite, siderite. Distribution: In Germany, in Saxony...number of localities in Bolivia, including Aullagas, Colquechaca, Potosı́, Oruro, Porco, Chocaya, and Machacamarca |  | | Report (issue) | | deposits ................ 11 Geologic setting of cassiterite deposits ...... 12 Production, reserves, and...deposits ................ 16 Geologic setting of cassiterite deposits ...... 16 Production, reserves, and...resources potential. ... 19 Cavalcante and Monte Alegre de Goias deposits ...... 20 Bahia ..................deposits ................. 23 Geologic setting of cassiterite deposits ....... 24 Production, reserves, and...Annual tin production in Brazil, most of it fr.om cassiterite placer deposits in Rondohia Territory, amounts |  | | Journal (article/letter/editorial) | | Universitesi] at 20:13 05 January 2015 Pseudomorphs from Bolivia JAROSLAV HYRSL Heverova 222 CZ-28000 Kolin Czech...Republic ALFRED PETROV casilla1728 Cochabamba Bolivia Figure 1. Map showing deposits discussed in the...the more unusual members of the mineral kingdom. Bolivia is a country well known to collectors as the only...tungsten mines in the altiplano and eastern Andes of Bolivia. Pseudomorphs of native copper, cuprite, chalcocite...Cochabamba, Bolivia. Both authors are also part-time dealers specializing in minerals from Bolivia. 410 ROCKS |  | Torró, Lisard, Melgarejo, Joan, Gemmrich, Laura, Mollinedo, Diva, Cazorla, Malena, Martínez, Álvaro, Pujol-Solà, Núria, Farré-de-Pablo, Júlia, Camprubí, Antoni, Artiaga, David, Torres, Belén, Alfonso, Pura, Arce, Osvaldo (2019) Spatial and Temporal Controls on the Distribution of Indium in Xenothermal Vein-Deposits: The Huari Huari District, Potosí, Bolivia. Minerals, 9 (5) 304 doi:10.3390/min9050304 | Journal (article/letter/editorial) | | Xenothermal Vein-Deposits: The Huari Huari District, Potosí, Bolivia Lisard Torró 1,2, * , Joan Carles Melgarejo...Álvaro Martínez 4 , Núria Pujol-Solà 2 , Júlia Farré-de-Pablo 2 , Antoni Camprubí 5 , David Artiaga 2 , Belén...15088, Peru Departament de Mineralogia, Petrologia i Geologia Aplicada, Universitat de Barcelona (UB), C/...(D.A.); belen_tocue4@hotmail.com (B.T.) Facultad de Ciencias Geológicas, Universidad Mayor San Andrés... Plaza del Bicentenario–Zona Central, La Paz, Bolivia; diva.moshi@gmail.com Department of Earth Sciences |  | | Journal (issue) | | Stefano The Nakhlak Mine, Anarak District, Esfahan Province, Iran...........................................Maria Fiske (2021) Dona and Kim Niederman (2021) Noel De Dora (2021-2022) Sean P. Sweeney (2021) John C. Medici...first introduced to mineral collecting by Leandro de Magistris, honorary curator at the Natural History...wolframite, scheelite, cassiterite, magnetite and cobaltite, in varying proportions. (Cassiterite crystals are... Andradite variety topazolite, 4.3 cm, from Ocna de Fier, Romania. Ex Washington Roebling, Smithsonian |  | | Book (edition) | | Sulfur, native Bismite yes Zincite lamellar Cassiterite pseudohexagonal stellate or reticulate forms...internal reflections); Madenköy Mine, Çayeli, Rize Province, Black Sea Region, Turkey (sample: Halbach); XPL...grey; arg); Monte Narba Mine, San Vito, Cagliari Province, Sardinia, Italy; PPL B Same sample as above:...(West Wits Line), Witwatersrand field, Gauteng Province, South Africa; PPL B Intergrowth of electrum (yellowish...Bleida, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco (sample: Goldmann/Oberthür); |  | | Journal (issue) | | ificad a m in e, C e rro R ico d e P o to si, Bolivia. R esearch C h a rita b le T ru s t sp e c im e... famous mineral localities: Cerro ;8.ico de £ofosi Bolivia ^ --------------------- Wendell E. Wilson...Petrov Casilla 1728 Cochabamba, Bolivia Cerro Rico ( “Rich M ou n tain ”) de Potosi is among the oldest and...(1519-1521) and Pizarro conquered Peru and what is now Bolivia (1531-1535). Tons of silver began to pour from...Mineral specimens considered to be from Cerro Rico de Potosi (except perhaps phosphophyllite) must bear |  | | Journal (article/letter/editorial) | | 2010 Editor: J. Fein Keywords: Mine tailings Bolivia Potosí Zn Cd Sphalerite Wurtzite Column leaching ...experiment that incorporated tailings and soil from Potosí, Bolivia, and modelled 20 cycles of wet and dry season...during experimental column weathering of Bolivian (Potosí) mine tailings in the presence and absence of floodplain...contributions. 2. Study area The Río Pilcomayo in Bolivia (20ºS 65ºW) originates in the central Andes at...metal-polymetallic ore deposits at Cerro Rico de Potosí (Fig. 1). The deposits are mineralised hydrothermal |  | | Book | | 1. Silver miners—Bolivia—Potosi (Dept.)—History. 2. Silver mines and mining—Bolivia—Potosi (Dept.)— History...History. 3. Indians of South America—Bolivia—Potosi (Dept.)—Employment—History. I. Title. HD8039.M732B53...Caspar Miguel Berrio, Descripcion de zerro rico e ymperial villa de Potosi (1758) Map of the area discussed...be met. My research began in the Archive Gen¬ eral de Indias, whose staff I should thank for their attentions...Archive General de la Nacion of Argen¬ tina, for their helpful service. And in Bolivia itself I have many |  | Gaskov, I. V., Vladimirov, A. G., Khanchuk, A. I., Pavlova, G. A., Gvozdev, V. I. (2017) Distribution of indium in ores of some base metal and tin–sulfide deposits in Siberia and the Russian Far East. Geology of Ore Deposits, 59 (1) 56-67 doi:10.1134/s1075701517010032 | Journal (article/letter/editorial) | | China (Dulong, Dachang), and Bolivia (Potosi, Huari Huari, Bolivar, Porco) (Murakami and Ishihara, 2013)...(Schwarz-Schampera and Herzig, 2002). The Malku Khota (Bolivia, South America) Ag–Ga–In Project located 200 km...total indium reserves at tin–sulfide deposits in Bolivia (San Lorenzo, Bolivar, GEOLOGY OF ORE DEPOSITS...DEPOSITS Vol. 59 No. 1 2017 Huari-Huari, Porco, Colquechaca, and Colquiri) are 12 kt with an average indium...veinlets (stannite–cassiterite–quartz, GEOLOGY OF ORE DEPOSITS Vol. 59 No. 1 2017 cassiterite–quartz with |  | | Report (issue) | | American Embassy, La Paz, Bolivia; and Raul Sal as 0., Servicio Nacional de Geologia y Mineria, Santiago...sulfur deposits associated with stratovolcanos in Bolivia and Chile ........................ 5. 12A 15A...polymetallic Sn and Sn-Ag deposits in southern Bolivia, which are associated with porphyry stocks and...region of southern Peru, northern Chile, western Bolivia, and northwestern Argentina. The information presented...72° \ 12° 12° PERU Macusani > 16' ijj®BOLIVIA 16" Vs. m^:::::: : ::::;:::::::t LaPaz Are'q:u:|jjjj|:;:| |  | | Journal (article/letter/editorial) | | 205 feet), Tocorpuri on the border of Chile and Bolivia is 6,873 meters (22,550 feet), and the highest...narrow to only 32 kilometers (20 miles), whereas in Bolivia they Dr. Terry C. Wallace is a professor of geosciences...09:23 14 October 2014 vivianites from Oruro, Bolivia; and fantastic pyrargyrites from Hauncavelica,...Pomerape (6,282 meters) on the border of Chile and Bolivia. These volcanoes, like hundreds of others in the...by one of the authors (TCW) and colleagues in Bolivia. in silicates and thus are quite viscous. This |  | | Report (issue) | | gov/images/periodictable.pdf. Cover. Left, cassiterite crystals. Photograph copyright © Dakota Matrix...Minerals; used with permission. Right, wood tin cassiterite. Photograph copyright © R. Weller, Cochise College;...structure of cassiterite................................... S6 Photograph of cassiterite crystals........................ S6 Photograph of wood tin cassiterite................................................The predominant ore mineral of tin, by far, is cassiterite (SnO2). Tin has not been mined or smelted in |  | | Journal (article/letter/editorial) | | ascentering aboutthelatter,better-known type. The cassiterite, quartz,pyriteassociation wasclassed as an outlying...abundant tourmaline in certain of the northern cassiterite veins and on the strengthof this occurrenceof...core and the elevationof the Cordillera Real of Bolivia mustbe of approximatelythe sameage. This may seemstartling...Negro Pabellon,Llallagua, Uncia, Avicaya, Potosi, Porco, Pulacayo, and many others, are found in or aboutintrusionsof...of a distinctly simple type, tourmaline and cassiterite,in varying proportions,constituting practicallyall |
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