 | | Journal (article/letter/editorial) | | sulfide mineralization is present in the Julcani mining district, Peru, as fracture fillings in Tertiary volcanics...are used to determinemetal ratios throughoutthe district. The changesin metal ratios are large and systematic...mineralizing solutions. In the southeast.ernpart of the district, Herminia-Lucrecia, ratios change systematicallyaway...changesin three other mineralized areas of the district indicate general domal zoning. In general,Pb/Cu...as are determinedthroughoutthe Julcanimining district, Peru, usingmetalcontentdata available' from seen'by |  | | Catalog/List | | good stuff that used to come out of the Marencl mine, ~ut the price is a whole lot better. specimens...at, but the oerussites FLUORESCE a bright yellow-gold under UV fight. and there are lots of them on each...00 eaoh. CLEANED COPPER AND MALACHITE: Southwest Mine, Bisbee, Arizona: I've had these for a few years...PYRITE, GALENA, SPHALERITE: Various localities, Peru: Check out our Peruvian pages to get an idea of...spent the past three years living and working in Peru and had just moved back with all the goodies he |  | | Journal (article/letter/editorial) | | pohwatp@si.edu ENARGITE Longfellow Mine, Red Mountain District, San Juan County, Colorado Are all things...the north orebody of the Longfellow mine, Red Mountain district, San Juan County, Colorado. Specimen...sedimentary-hosted lead-zinc deposits of the Tri-State district in the United States. It is known to replace pyrite...Frondel 1944). The copper arsenates of the Tintic district, Utah, and of Tsumeb, Namibia, result from the...the Longfellow mine, Red Mountain district, San Juan County (fig. 1). The Longfellow mine was discovered |  | | Journal (article/letter/editorial) | | Connecticut] at 04:22 12 October 2014 Twin Creeks Mine, Humboldt County, Nevada he general association...United States. such ;IS Nev;ida’s wellknown Getchell mine, have produced good arsenic sullide specimens for...spcciinens were encountered at the %in Creeks gold mine in Huinholdt Coonty, Nevada. Fortunately for collectors...collectors and curators everywhere, the mine management has entered into an agrcenient with ;I commercial...fumaroles. It has also been identified as a product of mine fires. Commonly associated minerals include stibnite |  | | Journal (issue) | | TSKnerals of i'eru ! Indian miner, Cerro de Pasco, Peru, 1869 (Simonin, 1869). J3E(mes and J3E(merals...crystal group, 7 cm, from the Huanzala mine, Dos de Mayo Province, Peru. Marty Zinn collection; Jeff Scovil............................... History of Peru Mining in Peru The Mineral Specimen Business C o l l e c....................... Quiruvilca district, Santiago de Chuco province, department of La Libertad PASTO.......................... Pasto Bueno district, Pallasca province, department of Ancash R a u r a -H u |  | | Journal (article/letter/editorial) | | pp. 931-949 Geologyof theJulcaniMiningDistrict,Peru I,JLRICHPETERSEN, DONAnDC. NOBLE.MARIOJ. ARENAS...(Ag-Bi-Pb-Cu-W-Au) mineralizationat the Julcanidistrict, central Peru, is geneticallyrelatedto a geologicallybrief pulseof...contouring.The central part of the district, characterized by the pyritic gold-tungstenmineralization of Tentadora...galenasphaleritemineralization. The zone of pyritic gold-tungstenmineralization, which correspondsapproximately...considerably in guiding exploration and development of Julcani, alloxvinga marked increasein ore reserves,as well |  | | Report (issue) | | metal-bearing, epithermal deposits of Mexico and Peru by Nora K. Foley Open File Report 84-633 This...districts Guanajuato District, Guanajuato, Mexico References Geologic map of Guanojuato District, Mexico Pachuca-Real...del Monte District, Hidalgo, Mexico References Geologic map of Pachuca-Real del Monte District, Mexico...Colqui District, Lima, Peru References Geologic map of Colqui District, Peru Julcani District, Huancavelica...Huancavelica, Peru References Geologic map of Julcani District, Peru 1 2 3 4 4 10 11 12 16 18 19 24 25 26 |  | | Journal (article/letter/editorial) | | and Ag-sulphosalts in a zoned ore deposit, Julcani, Peru R. O. SACK1,* 1 2 AND P. C. GOODELL2 Department...ABSTR ACT The sulphide ores from the Julcani mining district (Peru) display many retrograde reactions that...[~(Cu,Ag)10(Zn,Fe)2(Sb,As)4S13] from the Herminia mine exhibit pronounced downstream enrichments in molar...retrograde reactions, Julcani District, Peru. Introduction THE Julcani mining district in Peru is located in...in the Angaraes province, Department of Huanacavelica, ~250 km SE of Lima (Fig. 1). It is a major mining |  | | Journal (article/letter/editorial) | | gemmy, intense purple apatites from this pegmatite mine have made Pulsifer the premier locality for fluorapatite...” 5.6 cm tall, Alchori, Shigar Valley, Skardu district, GilgitBaltistan, Pakistan. Private collection...Central Metasedimentary Belt of the Grenville Province of Canada (Tait and Bainbridge 2013); the apatite-magnetite...hydrothermal deposits of the Andes in Bolivia and Peru (Petrov and Hyršl 2013); the syenite pegmatites...(Belakovskiy 2013); and Mt. Xuebaoding, Sichuan Province, China (Rakovan 2013b). Many of these were mentioned |  | | Journal (article/letter/editorial) | | A SpecialIssueDevoted to the Mineral Depositsof Peru Preface ULRICH PETERSEN, Departmentof Earth and...PerubarS.A.,Juan de Arona 830 (Of 90I), Lima 27, Peru AND DONALD C. NOBLE MackaySchoolof Mines, Universityof...datingback to preInca and Inca times, when copper, gold, silver, tin, lead, and mercury, as well as a host...Francisco Pizarroconsisted of three roomsfull of gold andsilverobjects.This did not include the preciousmetals...Huarochir•,Colquijirca,Cerro de Pasco,Morococha,Huancavelica,Julcani,Castrovirreyna,SanJuande Lucanas,Cochasayhuas |  | | Journal (article/letter/editorial) | | ANTIMONY, AND CARBONACEOUS MATERIAL AT THE HUANCAVELICA DISTRICT, PERU DONALD C. NOBLE Mackay Schoolof Mines...PerubarS.A., Juande Arona 830, SanIsidro, Lima 18, Peru Introductionand GeologicSetting native mercury...assemblageoccursmainly as impregnations of the district have been describedby Yates et al. in the quartzite...re presentin surmine, the mostimportantin the district (Fig. 1), is roundingareas.Pyrite and tetrahedriteare...COMM UNICA TIONS NORTH pErU/y •'• MO•ELOHUA¾CO \ x' SANTABARBARA MINE ChaclatoconoOpen Pi• D |  | | Journal (article/letter/editorial) | | Systemin Bismuthinite-Stibnite Compositions. Julcani,Peru VIRGIL W. LUETH, Departmentof PhysicalSciences...alongits path. Zoningpatternsestablished at Julcani,Huancavelica, Peru. Metal zoningis com- at Julcaniare presentedin... on metal ratios. 1462 ENCODINGORESYSTEM, JULCANI,PERU 1463 LOG (Pb/Cu) FIG. 2. Map projectionsummarizinglog...Metal ratio map of the 360 level of the Herminia mine showinglocationof major veins. Dotted linesrepresentlogPb/Cu...ORESYSTEM, JULCANI, PERU 330 0 1465 LEVEL lOOm FIG. 5. Vertical sectionof the Herminia mine with a map |  | | Journal (article/letter/editorial) | | rises to 6,272 meters (20,577 feet), Huascaran in Peru is 6,768 meters (22,205 feet), Tocorpuri on the...production, significant amounts of lead, zinc, and gold, and an array of industrial minerals and chemicals...obtaining gold from placer deposits and mining and smelting oxidized copper ores in central Peru about 1500...conquered the Andes, the Quechm (the Inca) had words for gold (cori), silver (colqui), the ruby silvers (cochiso)...integral part of the religion of the Andean people. Gold was thought of as the "sweat of the sun," silver |  | Heald-Wetlaufer, Pamela, Hayba, Daniel O., Foley, Nora K., Goss, J.A. (1983) Comparative anatomy of epithermal precious- and base-metal districts hosted by volcanic rocks: A talk presented at the GAC/MSC/GGU Joint Annual Meeting, May 11-13, 1983, Victoria, British Columbia. Open-File Report Vol. 1983 (83-710) US Geological Survey doi:10.3133/ofr83710 | Report (issue) | | Abstracts, vol. 8, p. A31. List of Slidesl Slide 1 Gold ore from Goldfield, Nev. (from Roger Ashley, U.S...precious and base metals 9 Ore from the Creede district, Col. 10 Typical alteration zoning for the highly...deposition. 16 6 180-6D diagram for the Creede district, Col. (modified from Bethke and Rye, 1979). 1...from fluid inclusion studies for the Colqui district, Peru (from Kamilli and Ohmoto, 1977). 19 Temperature...fluid inclusion studies for the Sunnyside mine, Eureka district, Col. (modified from Casadevall and Ohmoto |  | | Report (issue) | | Geological Survey, Reston, Va.; V. Raul Eyzaguirre, Lima, Peru; Fernando Urquidi B., American Embassy, La Paz,...Argentina, western Boliva, northern Chile, and southern Peru, are potential targets for hydrothermal mineral...volcanism in the central Andean region of southern Peru, northern Chile, western Bolivia, and northwestern...and world-class resources of lead, zinc, silver, gold, antimony, bismuth, tin, and tungsten. Obviously...investigations. 1 76" 68' 72° \ 12° 12° PERU Macusani > 16' ijj® |  | | Journal (article/letter/editorial) | | edu Siderite Siete Suyos Mine, Atocha-Quechisla District Sud Chichas Province, Potosí Department, Bolivia...siderite from Siete Suyos mine, Atocha-Quechisla district, Sud Chichas Province, Potosí Department, Bolivia...& MINERALS Figure 2. Siderite with quartz, from Mine Hill, Roxbury, Litchfield County, Connecticut. The...Very fine examples of siderite were collected from Mine Hill, Roxbury, Litchfield County, where large cleavage...associated quartz (fig. 2). From the Palermo No. 1 mine, North Groton, Grafton County, New Hampshire, come |  | | Journal (issue) | | .89 by W. E. Wilson The Palomo mine, Huancavelica Department, Peru . . . . . . . . . . . . . . . . .... . .95 by J. Hyršl Pseudomorphs from Peru . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....White Ca-Mg-Fe-rich rhodonite from the Morro da Mina mine, Conselheiro Lafaiete, Minas Gerais, Brazil . ....BaCa2(CO3)2F2, a new mineral species from the Kirovskii mine, Khibiny, Kola Peninsula, Russia . . . . . . . ...crystal cluster, 3.5 cm, from the Mashamba West mine, atanga, Republic of the Congo. Rob Lavinsky (The |  | | Journal (article/letter/editorial) | | Economic Geologists 2000 Awards* R.A.F. Penrose Gold Medal for 2000 Citation of Alberto Benavides de...done the same. Students were required to work in a mine at least six months spread over three summers. I...disseminated). Furthermore, nobody else wanted to go to this mine because the pay was miserably low and you were charged...passing truck to hitch a ride to the Cerro de Pasco mine, where Alberto worked for an American company, Cerro... Soon afterward, Alberto envisaged that the Julcani mine had a much greater potential than the four-month’s |  | | Journal (article/letter/editorial) | | Economic Geologists 2000 Awards* R.A.F. Penrose Gold Medal for 2000 Citation of Alberto Benavides de...done the same. Students were required to work in a mine at least six months spread over three summers. I...disseminated). Furthermore, nobody else wanted to go to this mine because the pay was miserably low and you were charged...passing truck to hitch a ride to the Cerro de Pasco mine, where Alberto worked for an American company, Cerro... Soon afterward, Alberto envisaged that the Julcani mine had a much greater potential than the four-month’s |  | | Report (issue) | | steam-heated environments, such as those at the Tolfa district, Italy and Marysvale, Utah, and numerous modern...epithermal deposits such as Summitville, Colorado; Julcani, Peru and Red Mountain, Lake City, Colorado are characterized...possibly PO4 analogs of alunite, and zunyite, and later gold, pyrite and enargite. Acidsulfate alteration assemblages...Arribas, Jr., currently studying the Rodalquilar district in Spain as part his Ph. D. program, and Jeff...recently completed a Ph. D. dissertation on Julcani, Peru each conducted the stable isotope portion of |  | | Journal (article/letter/editorial) | | 1893-1900 NevadoPortuguezaVolcanicCenter, Central Peru: A PlioceneCentral Volcano-Collapse Caldera Complexwith...of the Western Cordilleraof the Andesin central Peru, wasactiveduring Plioceneand perhapsQuaternary time...Petersen,1965). The E1 Salvador,Julcani, and E1 Queva districtsof Chile, Peru, and Argentina(Gustarson and...the NevadoPortuguezavolcaniccenterin cen- tral Peru, preciousmetal mineralizationis very closelyassociated...well-exposed and well-preserved collapse caldera. This district is of interest because where mineralizationoccurswithin |  | | Journal (article/letter/editorial) | | GEOLOGY AND MAJOR ORE DEPOSITS OF CENTRAL ULRICH PERU PETERSEN CONTENTS PAGE Abstract ..............the center of the districts to the margins. This district zoning is modifiedby local or orebodyzoning and...During Colonialtimes they were mined principallyfor gold and silver. At the beginningof this century,what...complexenterprise,includingthe Goyllarisquizga coal mine, concentrating, smelting,and refiningfacilitiesand...observations and ideas. MAJOR ORE DEPOSITS OF CENTRAL PERU 409 General summariesare presentedby McLaughlin |  | | Journal (article/letter/editorial) | | as a petrogenetic indicator: Keno Hill Ag-Pb-Zn District, Yukon, Canada R. O. SACK1,*, J. V. G. LYNCH2...Ag)10(Zn,Fe)2Sb4S13] from the Keno Hill mining district, central Yukon, Canada record virtually the entire...sulphide veins in the Coeur d’Alene (Idaho) and Julcani (Peru) mining districts (Sack et al., 2002; Sack and...ore-forming processes and events. Fahlores within this district display prominent zoning in Ag/(Ag+Cu) and Zn/(Zn+Fe)...primary compositions. The Keno Hill Ag-Pb-Zn mining district in central Yukon, Canada (~400 km north of Whitehorse |  | | Journal (article/letter/editorial) | | 1924-1938 The MagmaticHydrothermalSystemat Julcani,Peru' Evidencefrom Fluid InclusionsandHydrogenand...died in an automobileaccidentnear Cerro de Pasco,Peru,onJuly13, 1994. JeffwasbornDecember3, 1957, in Oakland...-1554.00 1924 MAGMATICHYDROTHERMALSYSTEM,JULCANI,PERU 1925 hadreturnedto field-orientedstudies,in...southeast of Lima(Fig. 1). Production from the district began in Spanishcolonial times whenfree-milli...principalproductionis silver,with by-productsof copper,gold,lead,andzinc.Duringthe 1980s productionof silverore |  | | Journal (article/letter/editorial) | | perhaps2 to 3 km beneaththeir summitregions(Fig. 1). Gold-bearing enargite mineralizationis characteristicallyassociatedwith...Guinea(Sillitoeet al., 1984; seebelow), and possiblyalsoat Julcani(Petersen et al., 1977) and San Crist6balde Lipez...(Jacobson et al., placement,althoughlocally,asat Julcani(Petersen et al., 1977), Divide (Bonhamand Garside...springsinters(Fig.2), asat Delamar(Pansze, the Divide district(Bonham and istic of Summitville (Perkins and Nieman...sigsaline fluid inclusions,and other features at Julcani nificantlyyoungerandgeneticallyunrelatedto the |
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Julcani Mine, Julcani District, Angaraes Province, Huancavelica, Peru