 | | 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...Along these paths they depositedfirst enargite-pyrite-tennantite/tetrahedrite, then a zone of complex |  | | 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) | | Tourmalinized Fluidization Breccia, JulcaniDistrict, Peru JOHNP. SHELNUTT* Departmentof Geologyand GeologicalEngineering...plutoncrystallizing beneaththe centralpart of the district. Areallyrestrictedelongatezonesof shattereddacitepostdatethe...describesfiuidizationbrecciasat the Julcanidistrict,Peru. A majorpurposeof the study wasto provideevidencefor...to underlie the district. The Julcanidistrictis locatedin the centralAndes of Peru approximately250...Geologicsetting The geologyand mineral depositsof the Julcani districthavebeendescribedby Petersenet al. (1977) |  | | Journal (article/letter/editorial) | | 1924-1938 The MagmaticHydrothermalSystemat Julcani,Peru' Evidencefrom Fluid InclusionsandHydrogenand...the emplacementof radiatingswarmsof tourmaline-pyrite brecciadikeletscementedby quartz-containing saline...stronglyzonedwith a generalsuccessionof quartz+ pyrite + wolfamite-,enargite-,tetrahedrite-,galena-,andbarite-dominant...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 |  | | 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) | | POTASSIUMAND RUBIDIUM METASOMATISM AT THE ]ULCANI DISTRICT, PERU DARYL A. SCHERKENBACH NorandaExploration...determined and rubidium metasomatism on both a district-wide scaleandat closeproximityto veinsandveinsystems...hydrothermalalterationand mineralization(Scherkenbach,1978). The Julcani Mineralogy and Chemical Changes districtis well...fine-grainedor glassy Most of the altered rocksin the district thedetermination of accurate background values...majormineralizationnormal cludingepidote, chlorite, calcite, pyrite, smectite, quartz, sericite,albite, and/or K-feldspar |  | | 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...It is the fourth oc a metamorphosed sedimentary pyrite-rhodochrosite de currence of this rare and little |  | | 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 (article/letter/editorial) | | volcanicdomefield. Many peoplehave vidual deposits:Julcani, Peru; Summitville,Colo- contributedto our knowledgeof... in the systemmustlie betweenthe 834Svaluesfor pyrite and have equilibriumsulfur and oxygenisoare constant...follow a reducingpath becomemuch do not coexistwith pyrite andare characterized by 5180valuesbut by disequilibrium...detailsof calculations. tion of innumerable tourmaline-pyrite-quartz-altered brecciadikeletsthat extendradially...200øto minutesat dikelets is in the center of the district. Six centers of 400øC(Table1). Theseratesof equilibration |  | | 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...splendid specimens of crystallized sul:fides like pyrite, sphalerite, galena, etc. The mineralogy of Peruvian...Crowley et al. (1997) and most recently in the book "Peru, Paradise of Minerals" (Hyrsl et al., 2011 ). N |  | | Journal (issue) | | except the Dale Beck Valley, Dry Gill and Carrock End Mine. Grahamis hoping to get the permit system properly...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...amethyst, fluorapatite and tourmalines. Rossinguranium mine, a uraniferous granite, was also mentioned. Rick |  | | 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 |  | | Journal (issue) | | 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...hematite coating; these are from Leichang. Guangdong Province. C hina. There also were some dark red- purple |  | | Journal (article/letter/editorial) | | DEPOSIT:PERMIAN LITHOPHILE MINERALIZATION IN SOUTHEASTERN PERU ALANH. CLARK,DANIELJ. KONTAK,*ANDEDWARDFARRAR Departmentof...southwestof ascribed by Laubacher(1978) posits(e.g., Tentadora;Vidal, 1985), tungstenis a themine,a relationship...40-km2plutonof intermediate granitoid rocks5 JudasTadeo mine (lat 15o34'54"S; long 70ø22'18" W); itslithophi...itslithophilemetal-richquartzvein systemwould km westof the mine(Fig.2) isnamedhereafterCerro be morecharacteristic...domain of the Cordillera Oriental to (Fig. 1).The mine,alsoknownasMilagrode SanJudas on its northwestmarginby |  | | 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 |  | | 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...found during the 1960s, with anatase, brookite and pyrite crystals (Parker, 1973); at Brunnital in the uppermost |  | | Journal (issue) | | wurde der wichtigste Grubengeologe in der Trepca-Mine. Unter seiner Aufsicht wurden die ersten 20.000...Erzproduktion 500 Tonnen. Die Arbeitsbedingungen in der Mine waren hart und die Löhne niedrig. was 1936 den ersten...UNMIK-Verwaltung erneut mit dem Erzabbau in der Mine und mit der Zink- und Blei-Produktion. Im Jahr 2006...Bergbaukomplex im Kosovo. Bis 2009 wurde der Abbau in der Mine wieder bis auf 15 m über dem Meeresspiegel erweitert...im Internet an. Die Exemplare, die heute aus der Mine kommen, unterscheiden sich nicht wesentlich von |  | | Journal (issue) | | Oder die komplette Minenproduktion der Rogerly Mine aus England - dunkelgrüner Fluorit, saubere Zwillinge...bläulichgrünen Aggregaten, die Carr Boyd Nickel Mine (wasserfarbene Beläge auf Nebengestein) und Kambalda...West-Australien) sowie die in den USA liegenden Alpine Mine, Clear Creek, San Benito Co., Kalifornien und Weels...Zeitschrift) von .. Gongcheng Mine bei Guiling, Prov. Guangxi" über „Tangping Mine bei Gong Cheng, Prov. Guang-Xi)...Pyromorphite stammen aus einer alten, .. Daoping Mine" genannten und Bleierze fördernden Grube bei der |
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