 | | 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 |  | | 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...part of the district, characterized by the pyritic gold-tungstenmineralization of Tentadora, appearsto...Herminia system. Solutionsmoving southeast from Tentadora split, with a portion moving north into the Lucrecia...tetrahedritepredominatesin the lower or inner zonesand galena in the outer zones; the antimony and silver content |  | | 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) | | 1924-1938 The MagmaticHydrothermalSystemat Julcani,Peru' Evidencefrom Fluid InclusionsandHydrogenand...quartz+ pyrite + wolfamite-,enargite-,tetrahedrite-,galena-,andbarite-dominant assemblages gradingoutwardeastandwestfromthe...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 |  | | 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) | | terminated gem crystal, 13.0 × 2.5 cm, from the Jaquetô mine, Medeiros Neto, Bahia, Brazil. Bonisoli specimen...crystal in quartz, 7.5 × 6.0 cm, from the Himalaya mine, San Diego County, California. Bonisoli specimen...concretions, 7.0 × 6.5 cm, from the Mashamba West mine, Kolwezi, Democratic Republic of Congo. Bonisoli...coated with malachite, 4.5 × 4.5 cm, from the Onganja mine, Seeis, Windhoek, Namibia. Bonisoli specimen 3349...Anglesite, 2-cm green crystals on galena, 6 × 4 cm, from the Montevecchio mine, Guspini, Sardinia, Italy. Bonisoli |  | | Journal (issue) | | Sulfosalt Environment: The Mineralogy of the Julcani District, P e r u ............................................ 247 WULFENITE—from level 4 of the 79 mine, Gila County, Arizona. The specimen was collected...their help, and their country, where a change in mine ownership has also response has been wonderful....Individuals who have con sometimes meant a change in mine name. How many sented to serve as members of this... VIOLARITE FROM N IIH tlf A L u â– THE GAP NICKEL MINE by J. A. Speer and E. C. M artin Virginia Polytechnic |  | | Journal (issue) | | except the Dale Beck Valley, Dry Gill and Carrock End Mine. Grahamis hoping to get the permit system properly...ironstones, such as siderite, quartz, millerite, galena, sphalerite, siegenite, ankerite, hattchetite,...still very much a 'frontier place'. One supposed mine was started by a character called Otto van Stryk...Stryk who thought he had found a huge iron mine. Alas, he never got any useable ore out of it. Rick went... So now it is recognised as a potential uranium mine! Another anecdote involved a light plane brought |  | | Journal (issue) | | San Pedro Mine in Santa Fe County, and along with his son Phillip is actively exploring the mine for minerals...minerals. The San Pedro Mine is perhaps best known for producing beautiful specimens of finely crystalline...Phillip have also developed a surface exposure at the mine to produce some very nice, single, sceptered quartz...ci rc ulatio n for some years. Sulfides are real mine rals and I still regret no t buy ing a good specimen...came from the Ortiz Mine (Cunningham Gulch) around 19845. The Ortiz mountains and mine are just a few miles |  | | Journal (issue) | | have been recovered from the Blue Wing Mining District, approximately 20 miles southwest of Dillon, Montana...heretofore unreported from this district and was found on the dump of the Pomeroy Mine. The Pomeroy is located...11 W. (this location is labeled as the Del Monte Mine on the Bannack topographic map). From the descriptions...Shenon (1931 ), the mine labeled as the Del Monte is actually the Pomeroy Mine. The mine was discovered in...•• .. Fig. 1 Calcian duftite from the Pomeroy Mine, Excalibur Minerals SEM image. Hydraulic Rock Trimmeir |  | | Book | | Gemstonesof Peru . TO ' ..J.O[_)(ON '\J./ITI1 KY Be-51 R~GAF-P5 f JaroslavHyrsl Gemstonesof...Gemstonesof Peru GRflnil © 2012 Text by Jaroslav Hyr~I © 2012 Photos by Jaroslav Hycll (166), Fidel Salinas...Coll. Z. Rosales. Photo J Hyrsl. 6 Introduction Peru is a country rich in minerals, with numerous very...crystallized sul:fides like pyrite, sphalerite, galena, etc. The mineralogy of Peruvian mines was thoroughly...Crowley et al. (1997) and most recently in the book "Peru, Paradise of Minerals" (Hyrsl et al., 2011 ). N |  | | Journal (article/letter/editorial) | | volcanicdomefield. Many peoplehave vidual deposits:Julcani, Peru; Summitville,Colo- contributedto our knowledgeof...200øto minutesat dikelets is in the center of the district. Six centers of 400øC(Table1). Theseratesof equilibration...Evolution in the gold-, enargite-, tetrahedrite-, galena-, and bariteEpithermal Environment dominantassemblages...Percent eventsthat reachedvery shallowlevels.The district hasbeentheobjectof studyformanyyears(Goodell ...SOCIETYOF ECONOMICGEOLOGISTS FIc. 6. Geologyof the Julcani,Peru,domefield showingigneousstagesand outlineof |  | | Journal (issue) | | Cd-bearing phosphate mineral from the Gold Quarry mine, Eureka County, Nevada . . . . . . . . . . . . ...crystal cluster, 7.3 cm, from near Bapu, Guangdong Province, China. Rob Lavinsky specimen, now in the Tom...recovered from the dumps of this small mine. Local collectors reworked the mine dumps many times in search of...about 325 meters southwest of the Bishop manganese mine. The locality was early on referred to as a “copper...spatially distinct from the nearby Bishop manganese mine. The dumps do not contain significant manganese |  | | Journal (issue) | | found along with fossils (coral and brachiopods). galena. spha- Ortobrr 2000 -----_ lerite. dolomite...mail : Wydar8®aol.com Ortoher 2000 eD_enver Mine rnl News Continued from page 1 net size. Francois...Subscription Orders and advertising rate req uests to Mine ra l News, P .O . Box 2043, Coeur d'Alene , ID 83816...supply of Japan law twin quartz from Pampa Bl anca Mine. Peru. These are singles and matri x specimens up to...there were large clusters of amethyst from the Anahi Mine, Bolivia. These are not the ametrine crystal s but |  | | Book | | On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona (by W. J. Thomas & R. B. Gibbs) 14:283-298...ALLEN, GEORGE B. --and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE...Allgood, C. Williams: Ramsdellite from the Mistake mine [Arizona] 14:333-335 ALLGOOD, ROBERT W. -with G...the Mistake mine [Arizona] 14:333-335 ALMA Famous mineral localities: the Home Sweet Home mine, [near Alma |  | | Book | | MALAWI Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage...Cowgill, 1977). LATINAMERICA BRAZIL Jacupiranga mine, Sao Paulo. Among the crystallized minerals in the...Oblast. Alpine-type clefts in the famous Dodo quartz mine commonly contain ilmenite, occurring as lustrous |  | | Journal (issue) | | «compuesto principalme nte de hombres de ciencia e mine ntes i de personas actualmente comprometid as e...de Investigacion». Prese ntó tambien una lista tentadora de los labor"torios que en Estados U nidos están...Fig . u -Perfil observado cerca del término de la Galena del Carmen Filtraciones. Se vé en este perfil...considerar las termas de la rcjion de Momiña como agua!; mine rales que provienen de algun macizo de m.agnla Ãgneo...éche). 2.578 t oneladas de galena; Maline (Gard) . 2. 560 t oneladas de galena mas 17.800 t oncladas de |
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