 | | 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...Ph08pl,ophyllite; 5. 2 cm tall Cerro Rico, Potosi, B,atillo province, Potosi Andy Seibel col/action Jejf-SC...wp11�. Yaalte: 12.5 cm wide Siglo XX Mine, ,U� Bustillo province, Potosi Malty Zinn colkdknt (ex Marv...640 200 100 600 The Political Divisions of Bolivia (after United Nations Map No. 3875, Peacekeeping |  | | Journal (article/letter/editorial) | | Miocene tin porphyry systems of Llallagua, Chorolque, and Cerro Rico have a moderately fractionated rhyodacite...THE TIN porphyry deposits of Llallagua, Chorolque, and Cerro Rico form part of the central Andean tin...tin belt in the Eastern Cordillera of Bolivia (Fig. 1). The tin belt extends from southern Peru to northern...Argentina and is the easternmost metallogenic province of the central Andes (Ahlfeld, 1967; Turneaure...Rice, 1997), which makes Llallagua the largest tin mine of the western world. The bulk geochemical tin enrichment |  | | Journal (article/letter/editorial) | | some Bolivian minerals (Jamesonite, Andorite, Cassiterite, Tourmaline, &c.). By L. J. SP~CEa, M.A., F.G...crystal-forms on Vivianite. Tetrahedrite fl'om Pulacayo mine, Huanchaca. Regular grouping of Stannite and Tetrahedrite...Tetrahedrite. Axial ratios and analysis of Valentinite. Cassiterite. Tourmaline and Tourmaline-Hornfels fl'om Tasna...Dept. Potosi. Chalybite from Chorolque and Tatasi. Enargite from Chorolque. the last twelve years I have...friend Mr. Malcolm Roberts, A.R.S.M., a mine manager in Bolivia. Another collection , which may be specially |  | | Journal (issue) | | Articles Famous mineral localities: The Bristol copper mine, Connecticut......................................in the U.S.A. notesfrom th r EDITORS OLD YUMA MINE Another great mineral locality has now been closed...longfamous Old Yuma mine near Tucson (see R. L. Jones, “Famous mineral localities: the Old Yuma mine,” in vol....period of activity, access to the mine was cut off in 1984. In 1996 the mine area was absorbed into the Saguaro...and Mining Company for the sum of $558,000. The mine is now owned outright by the Federal Government |  | | 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...gold- and silverbearing tellurides. The selenium province at La Rioja is the largest one on earth. The prominent |  | | Journal (article/letter/editorial) | | gives lower Mioceneages. In central and southern Bolivia the tin depositsare complex vein systemsassociated...to 20 m.y. Several of the major tin depositsof Bolivia, includingthe Catavi depositat Llallagua, fall...and Santa Vera Cruz. A southerngroup includesthe Cerro Rico stock at Potosi and the mineralized eruptive...extended across the width of the Andes almost Bolivia, there are some remnants of epicontinental to the...ARICA Iq ' J • DATED LOWER MIOCENEJ ERUPTI VE/ BOLIVIA / COMPLEXES WlTHJ d (CuPORPHYRYIOF U.MIOCENE AGE |  | | Journal (article/letter/editorial) | | the polymetallic hydrothermal ore deposits in Bolivia A. Sugaki ~, S. Kojima ~ and N. Shimada 2 i Institute...sphalerite, cassiterite, and barite from the 28 tin-polymetallic ore deposits in Bolivia. Generally,...comparatively high for ore deposits formed by cassiterite mineralization, such as Morococala and Avicaya...were confirmed. The province of the Eastern Cordillera of the Andes in Bolivia is a geologically important...fluid inclusions in ores from some tin deposits in Bolivia have been given by Little (1960), Kelly and Turneaure |  | | Report (chapter) | | hydrothermal systems in some sub-volcanic tin deposits of Bolivia J. N. Grant Department o f Geology, Royal School...Geol6gico de Bolivia ( G E O B O L ) , La Paz, Bolivia G. Avila Servicio Geol6gico de Bolivia ( G E O B...B O L ) , La Paz, Bolivia 5 5 2 . 3 : 5 5 3 . 2 1 6 . 5 : 553.45(84) Synopsis The tin deposits o f the...southern part o f the Cordillera Oriental o f Bolivia consist of complex vein systems and pervasive disseminated...intrusives and coeval volcanics are preserved (Chorolque, Oruro, Potosi), whereas in some cases only the |  | | 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...concentration of trace amounts of indium. Keywords: Bolivia, indium, petrukite, polymetallic, Potosi, sphalerite...Sn-polymetallic ore belt Arica BOLIVIA Potosi CHILE Lake Uyuni Border Cities Atocha Lakes Tertiary strata...terrains of Japan (Ishihara et al., 2006) and Bolivia (Ishihara & Murakami, 2008a). The total indium...(Sinclair et al., 2006). Tin-polymetallic deposits in Bolivia (Fig. 1) appear to be one of the major source regions |  | | Journal (article/letter/editorial) | | 70, 1975, pp. 913-927 PorphyryTin Depositsin Bolivia R. H. SILLITOE,C. HALLS, AND J. N. GRANT Abstract...central and southern parts of the Bolivian tin province has been derived largely from lode systemsassociatedwith...those at the major Llallagua, Potosi, Oruro, and Chorolque mineralized centers, geological characteristicsof...stockwork, disseminated, and breccia-filling cassiterite mineralization. The depositsare designatedas...hydrothermalbrecciaat Chorolque. Pyrite halos are recognizable at Chorolque and Llallagua. The cassiterite is present |  | | Journal (article/letter/editorial) | | to tin’s overwhelmingly dominant ore mineral, cassiterite (covered previously in this column [Cook 1997])...states. Examples include the Cove mine, Lander County, the Bald Mountain mine, White Pine County, and the famous...famous Majuba Hill mine, Pershing County, Nevada; with freibergite and andorite at the Bear Basin mines...sphalerite at the Young American mine, Stevens County, Washington; the Old Dowdy mine, Gunnison County, Colorado...löllingite, smaltite, and various sulfides; the Merrimac mine, Doña Ana County, Figure 1. A 2.5-cm-high stannite |  | Lehmann, B., Dietrich, A., Heinhorst, J., Métrich, N., Mosbah, M., Palacios, C., Schneider, H. -J., Wallianos, A., Webster, J., Winkelmann, L. (2000) Boron in the Bolivian tin belt. Mineralium Deposita, 35 (2) 223-232 doi:10.1007/s001260050017 | Journal (article/letter/editorial) | | magmatic-hydrothermal systems of the Bolivian tin province. The average boron content in melt inclusions...and porphyry deposits of the Andean tin belt of Bolivia and southernmost Peru. Both metal provinces represent...Rafael, San JoseÂ/ Oruro, Llallagua, Cerro Rico de Potosi, Chorolque) (Grant et al. 1979; Fig. 1). 224...framework of the central Andes The Andean tin belt of Bolivia, SE Peru and northernmost Argentina (Fig. 1), usually...Paleozoic clastic rocks of the Eastern Cordillera of Bolivia, in tourmaline-quartz-sericite and chlorite The |  | | 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 |  | | Journal (article/letter/editorial) | | cycle .............. The Tertiary petrographic province ............................. The Tertiary me...excellentwork of Myron Davy (I92O), the Bolivian Tin Province has beenthe object of much detailedresearch. Its...a short summary of the present knowledgeof the province. Many questionshave not yet been solved;geologicaland...provenearly Tertiary2 ageare knownin this part of Bolivia. The batholith of apliticgranitewhichI foundin...canism in themiddle andsouthern partsof thetin province pro• Theageof theyoungmagmatie rocksof Peru,especially |  | | Journal (article/letter/editorial) | | bismuth, Ni-Co-sulfides, various sulfosalts, cassiterite and gangue minerals as quartz, carbonates and...- Sn± W - Mo- Llallagua, Chorolque, Tasna Huallatani, O r u r o (Bolivia) alteration, (greisen) W...deposit of = [-0.51_+0.07]x 106 I/T(K) 2 Huallatani (Bolivia) with +8.2O/oo, for the hydrothermal Bonser Vein...pneumatolytic Bolivian tin Bi2S3_ccp) deposits of Chorolque, Oruro and Llal[-0.70 +_o. 07] x 106 1/Tik)2 lagua...TB Tasna Tasna (Bolivia) (Bolivia) 81 FB Huallatani 85 HD 2499 Chorolque 101 78 lo6 G6 2422 |  | | Journal (article/letter/editorial) | | and Hf in cassiterite. Chem. Geol., 40: 1--12. Analytical data on Zr and Hf in cassiterite samples from...geochemical indicator of the mode o f formation of the cassiterite in cases when this is not clear from the geologic...from oxidic parageneses in pegmatite veins. Cassiterite from sulfide parageneses seems to be free of...Hf fractionation. SAMPLING Samples from many cassiterite deposits in various tin provinces in America...South Africa Zaaiplaats, South Africa Huai Luang mine, Thailand Tac District, Thailand Tac District, Thailand |  | | Journal (article/letter/editorial) | | Earth. In 2017, the Central Andes accounted for the mine production of around 39% of the world’s copper,...easternmost extend from central Chile/Argentina to Bolivia and to northern Peru and beyond. Table 1 summarizes...cm. Figure 2 A–B vein Panoramic view of the Cerro de Pasco (Peru) Miocene Cordilleran polymetallic...thick continental crust. The Sn abundance (as cassiterite) is generally attributed to redox conditions...assemblage in the Cordilleran polymetallic deposit of Cerro de Pasco (Peru). Photo width: 8 cm. Figure 5 enr |  | | 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) | | Fernando Urquidi B., American Embassy, La Paz, Bolivia; and Raul Sal as 0., Servicio Nacional de Geologia...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) | | 345 Cassiterite pseudomorphs from Bolivia 1 By RICHARD PEARCE, Ph.D., F.G.S. [Read June 22, 1906.~ N...occurrence of cindery and cellular masses of cassiterite, which is presumably of secondary origin. But...crystal-forms are rarely shown by this pseudomorphous cassiterite. The pseudomorphs to be now described are from...dark brown, finely crystalline and granular cassiterite, associated with which is a pale yellow, ochreous...thickness. Their surfaces have a drusy mineral from Bolivia. aspect, due to the crystalline development of | | | Journal (article/letter/editorial) | | 345 Cassiterite pseudomorphs from Bolivia 1 By RICHARD PEARCE, Ph.D., F.G.S. [Read June 22, 1906.~ N...occurrence of cindery and cellular masses of cassiterite, which is presumably of secondary origin. But...crystal-forms are rarely shown by this pseudomorphous cassiterite. The pseudomorphs to be now described are from...dark brown, finely crystalline and granular cassiterite, associated with which is a pale yellow, ochreous...thickness. Their surfaces have a drusy mineral from Bolivia. aspect, due to the crystalline development of |  | | Journal (article/letter/editorial) | | shownby the occurrenceof tourmaline needleson cassiterite crystals. Cas- siteriteand wolframitesimilarlyoverlap...formation of bismuthinite,before wolframite and cassiterite,mentionedby the author, is unusual; however,...other Bolivian deposits,e.•7. Ce?ro de Potosi and Chorolque. At .Llallaguatherealsois later bismuthinitereplacingstannite...Turneaure, F, S.: The Tin 'Deposits of Llallagua, Bolivia. 3o, pp. I4-6o, x7o-•9o, Ecoa. GlgoL., vol. ...specimens, collectedby Mr. H. Block,managerof the Uncia mine in i9o8, from the upper2o metersof the deposit. |  | | Book | | at a level of 150,000-250,000 t Sn/year, with a mine output in 1989 of 210,000 t Sn (MCS 1990). This...areas with which the author is most familiar with (Bolivia, SE Asia, Europe). This inductive approach condenses................................ Solubility of Cassiterite in Silicic Melts ................................... H y d r o t h e r m a l Solubility of Cassiterite ...............................................Northern Bolivia .......................................................... Chorolque, Southern Bolivia .. |  | | Journal (article/letter/editorial) | | Lindgren (Mineral Deposits, p. 7114)states that cassiterite when accompanied with wolframite is apparently...a few of these higher temperature minerals: cassiterite-wolframite-arsenopyritepyrite. NOMINATIONS FOR...expedition. Arriving at Mollendo, Peru, he crossed into Bolivia where considerable time was spent in collecting...York. When in Bolivia he visited Araca, Chojnacota, Caracoles, Llallagua, Monserrat, Cerro Ubina, Tasna...Tasna, Chorolque and Chocaya. The finds in Bolivia included many beautiful specimensof cassiterite, pyrite |  | | Journal (article/letter/editorial) | | Lindgren (Mineral Deposits, p. 7114)states that cassiterite when accompanied with wolframite is apparently...a few of these higher temperature minerals: cassiterite-wolframite-arsenopyritepyrite. NOMINATIONS FOR...expedition. Arriving at Mollendo, Peru, he crossed into Bolivia where considerable time was spent in collecting...York. When in Bolivia he visited Araca, Chojnacota, Caracoles, Llallagua, Monserrat, Cerro Ubina, Tasna...Tasna, Chorolque and Chocaya. The finds in Bolivia included many beautiful specimensof cassiterite, pyrite |
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