 | | Journal (article/letter/editorial) | | geochemical study of element mobility in sulfide mine tailings of Fe oxide CuâAu deposits from the Punta...mineralogically compared. Main ore minerals are pyrite, magnetite and/or hematite and chalcopyrite. Gangue...of acid potential (7.1 wt.% calcite and 3.5 wt.% pyrite), whereas the older downstream tailings are characterized...2 wt.% pyrite) and intervals with high acid potential (about 3 wt.% calcite and 4 wt.% pyrite). Acid...Acid mine drainage (AMD) with the precipitation of schwertmannite (pH 3.15) and chalcoalumite (pH 4.9) flows |  | | Journal (article/letter/editorial) | | (Nordenskjold, 1926, p. 1148-1150). In the Remolinos mine and at Ladrillos de Plata (Fig. 2), where gold and...the underlying zone of primary chalcopyrite and pyrite. In the region as a whole, however, gold and silver...great depth of the water table. In the Dulcinea mine, for example, chalcocite, as a product of supergene...the surface (Brown, 1928, p. 186). The Dulcinea mine is near the top of a mountain of resistant metavolcanic...enrichment are much less; for example, in the Remolinos mine enriched ores are not found below 295 feet (Segerstrom |  | | Journal (article/letter/editorial) | | guide to later workers. Unpublished reports of many mine examinations made by Hector Flores W. and Ruiz during...thickness of the Punta del Cobre Formation exposed in mine workings and at the surface is 680 m (Segerstrom...part of the formation, 1.5 km northwest of Teresita mine, contains Crioceras andinum Gerth and other...of a small syncline (PL 3, fig. 2). At the Teresita mine, relatively thick-bedded Abundancia limestone...the Esperanza mine, the fault strikes N. 10° W. and dips 70° E. North of the Esperanza mine, the fault seems |  | | Journal (article/letter/editorial) | | sediment particles enter river systems by discharge of mine or processing waste, tailings dam failures, remobilization...remobilization of mining-contaminated alluvium and mine drainage. The mineralogy and geochemistry of these...metal-bearing particles to rivers include discharge of mine or processing waste, tailings dam failures, remobilization...mining-contaminated alluvium, and mine drainage. Direct discharge of mine tailings, efïŹuent and waste rock...HUDSON-EDWARDS the tailings dam breach at the Bolivian Porco mine in 1996, which released an estimated 235,000 m3 |  | | Journal (article/letter/editorial) | | sediment contamination; redox transitional zone; metal mine; oxic-anoxic interface; ferrihydrite; sulphide;...traditional approaches to management and remediation of mine water pollution tended to focus on point sources...226 water bodies known to be impacted by non-coal mine water pollution in England and Wales show evidence...(CdS) > Galena (PbS) > copper sulphide (CuS) > pyrite (FeS2)âreflecting the highest to lowest solubility...contamination, as will be discussed further in Section 2.3. Pyrite is reported to be more thermodynamically stable |  | | Journal (article/letter/editorial) | | metallichypogenemineralsfoundin Chileanore depositsare pyrite, chalcopyrite, magnetite,and hematite(includingspecularite)...Recoverablegold is almost entirelyin the nativestate. Pyrite is foundin varyingquantifiesin almost all deposits...porphyry-copper, chalcopyrite-specularite, chalcopyrite-pyrite, chalcopyrite-pyrrhotite,and bornite-chalcopyrite...Cabezade Vaca, E10rito, and Llamuco (Atacama); the mine E1 Chivato (Talca) is the typicalgold-tourmaline...primarychalcopyrite and pyrite. This zonegradesdownwardinto protore containingchalcopyrite and pyrite. The total thicknessof |  | MATHUR, R., Marschik, R., Ruiz, J., Munizaga, F., Leveille, R. A., Martin, W. (2003) AGE OF MINERALIZATION OF THE CANDELARIA Fe OXIDE Cu-Au DEPOSIT ANDTHE ORIGIN OF THE CHILEAN IRON BELT, BASED ON Re-Os ISOTOPES--A REPLY. Economic Geology, 98 (5) 1050-1052 doi:10.2113/gsecongeo.98.5.1050 | Journal (article/letter/editorial) | | 1985, p. 913) occur not far from the El Romeral mine (29Âș42.8' S, 71Âș14.9' W). In regard to the Re-Os...point to oolitic chalcopyrite in the Providencia-Teresita Cu-Au deposits 14 km to the north of La Candelaria...in underground exposures. However, at the Carola mine, chalcopyrite veins and veinlets are observed cutting...and of Farola (an older part of the Las Pintadas mine complex) as a massive sulfide deposit is debatable...Sources of the ore at Tharsis and Rio Tinto, Iberian pyrite belt, from Re-Os isotopes: Mineralium Deposita |  | | Report (issue) | | PUERTO RICO GROUND-WATER QUALITY By Alien Zack, Teresita Rodriguez-Alonso, and Angel Roman-Mas U.S. Geological...presence of relatively soluble and finely disseminated pyrite within the South Coastal Plain alluvial aquifer...Water-Supply Paper 2275, 467 p. Prepared by: Alien Zack, Teresita Rodriguez-Alonso, and Angel Roman-Mas FOR ADDITIONAL |  | | Journal (article/letter/editorial) | | earlystageis definedby quartzq-adulariaq-sericite+ pyrite alteredwall rock and by mineralogicallysimilarveinlets...AndahuaValley, a largeasymmetric Formation.Within the Calera mine, a thick sequence grabenthat boundsthe districton...characterizedby the presenceof chlorite,calcite,pyrite, andsericitethat appearsto have formedprior to...vein showingprincipal mine workings.3800, 3880, 3950, 4015, and 4055 indicatemain mine levels,which repr...andsplitRamal1, respectively. ModifiedafterOrcopampa mine staff. Rocksrich in sericiteand The locationsof |  | | Report (issue) | | deposited below 250° C. The colloidal habits of pyrite and quartz in the preparatory and reworking stages...Castrovirreyna district 186 Table IV Mine production and grade of ore, Carmen mine, 1941-1958 . 188 Table V...production, Caudalosa mine, 1927-1957 189 Table VI Mine production and grade of ore, Lira mine, 1941-1958 190...190 Table VII Metal production, San Genaro mine, 1928-1955 191 Table VIII X-ray powder diffraction...Spcctrographic analyses of pyrargyrite froa the San Genaro mine --«* -. - < 252 Table XXXIII Spectrographic analysis |  | | Journal (article/letter/editorial) | | the Cordillera of North America, P r o terozoic pyrite-chalcopyrite-sphalerite deposits, syngenetic with...volcanogenic -sedimentary deposits of complex composition (pyrite, siderite, galena, sphalerite, chalcopyrite, and...association of Central Kazakhstan, there are gold-pyrite and pyritic polymetallic deposits (Maykain, Bayankol...Paleozoic Sambagawa schists; and the Huelva province in Spain ( Rio Tinto). Cimmerian pyritic deposits are known...vein gold-ore) stages. Of the known chalco714 pyrite deposits, the four largest are being exploited: |  | | Journal (issue) | | Chirnside, A. M. Davis, F. E. Lichte & K. J. Esposito Pyrite and marcasite intergrowth from northern Illin ois...Miguel Calvo (who covers the two major shows in Spain), under Letter from Europe. George Robinson and... C/Arc de Sant Marti 79 Local 08032-BARCELONA (SPAIN) S (3) 4504478 âą Fax (3) 4504745 By Appt. only ...E - M - S - T - O - N - E Wulfenite, Red Cloud Mine, La Paz Co., Arizona Send $7.50 for our Mineral...Museum of Barcelona, Spain; the Spanish Institute of Geology and Mining, Madrid, Spain; the Vernadsky State |  | | Show/Event (guide) | | com Booth#: E411 Loose cut sapphires from single mine in Montana, sapphire rough materials, sapphire jewelry...El Meson de Paredes No. 23 Madrid, Madrid 28012 Spain Tel: 34615261973 www.jadminer.com Booth#: T2, T4...Jewelry) Alangobarri 4-4 IZ Algorta, Vizcaya 48992 Spain Tel: 34946122274 https://www.viddajewelry.com/ ...Booth#: S305 Vidda brings edgy jewelry handcrafted in Spain. We combine genuine leather and silver plated metal...precious stones. Mexico 925 Ghilardi 597, ol. Santa Teresita Guadalajara, Jalisco 44600 Mexico Tel: 708 443 |  | | Show/Event (guide) | | silver jewelry. DREAMGLASS Ghilardi 597, ol. Santa Teresita Guadalajara, Jalisco 44600 Mexico Tel: +5-233-334-4212... Booth#: E411 Loose cut sapphires from a single mine in Montana. Sapphire rough materials and sapphire...piritasdenavajun.us Booth#: Tent G-5 Top quality pyrite from Spain, minerals, and fossils. LEO SILVER BALI Jalan...543-4398 Booth#: E2 Minerals of Peru, rhodochrosite, pyrite, tumbled, Cabochons, carvings and other Peruvian...naturacrystals.com Booth#: Tent 114 Wholesale of Pyrite, carvings, spheres and soapstone animals. NATURAL |  | Gibson, Peter Craig, Noble, Donald C., Benavides, RaĂșl G., Mayta, Oscar T. (1993) Discovery, Development, and Production of a Blind Ag-Au Bonanza in the Calera Vein, Orcopampa District, Peru. International Geology Review, 35 (9) 780-796 doi:10.1080/00206819309465557 | Journal (article/letter/editorial) | | (1975), and unpublished mapping by the Orcopampa mine staff and K. E. Swanson. Manto Tuff is locally...tetrahedrite, sphalerite, galena, chalcopyrite, and pyriteâoccur as bands and pods within banded and massive...characterized by the presence of chlorite, calcite, pyrite, and sericite, that appears to have formed largely...vein showing development of the main ore shoot. The mine workings are projected to a vertical plane with...1988; D=January, 1992. E=June, 1993. Numbers are mine levels that represent approximate elevations. Qal |  | | Journal (article/letter/editorial) | | chalcopyrite, galena, and sphalerite in quartzâpyrite veins that also have a AgâAsâHgâTe signature. The...(205 to 382 ⊠C). Sulfur isotope compositions of pyrite (â6.2 to +0.4h) from the Banana Creek prospect...Navilawa caldera. Sulfur isotope compositions of pyrite from the Banana Creek prospect obtained here are...ironoxides, oxides,magnetite, magnetite,and andpyrite. pyrite. The The second second unit unitisisaamonzonite...withminor minoraugite, augite,biotite, biotite,pyrite, pyrite,and andiron ironoxides. oxides. Porphyry Cu-Auâstyle | | | Journal (issue) | | C/1imside, A. M. Dnvis, F. E. Lichte & K. J. Esposito Pyrite and marcasite intergrowth from northern Illinois...Miguel Calvo (who covers the two major shows in Spain). under Leller from Europe. George Robinson and...· E · M · S · T· 0 · N · E Wulfenite, Red Cloud Mine, La Paz Co., Arizona Send $7.50 for our Mineral...Museum of Barcelona. Spain: the Spanish Institute of Geology and Mining. Madrid. Spain; the Vcmadsky State...sitting up on a I O x I 0-cm matrix, from the Akchatau mine, Kazakhstan; not even a large bash in the center |  | | Journal (issue) | | occurrences 46 Cerro Pelado area 46 Loma Larga mine 48 Manganese mine 48 Sacachispas gold mining area 48 Alluvial...Non-metallic mineral occurrences 48 Jerusalein feldspar mine 48 Quarrying operations 49 Brick clays 49 Sand and...for example to the north of La Bocana near Santa Teresita, and westwards towards the Quebrada Tahufn Grande... collected from the Rio Piedras near to Santa Teresita (Aspden et al., 1992 and Figure 5). The K Ar...Magmatitic, biotite orthogneisses Q. Piedras, Sta Teresita area (La Avanzada 6212/959561) Biotite Muscovite |  | | Journal (article/letter/editorial) | | University, Pullman, Washington 99164-2812 AND TERESITA F. MONTENEGRO CONICET, Universidad Nacional de...hematite-magnetite; (3) skarns contain up to 15 percent sulfides (pyrite >> pyrrhotite-chalcopyrite) and locally are associated...silica-pyrite bodies replace prograde skarn and marble; (5) pyroxene-skarn and silica- pyrite alteration...prograde garnet-pyroxene and retrograde silica-pyrite, respectively; and (7) Cu-Au anomalies occur in...phyllic zone and supercritical fluids in silica-pyrite, hydrostatic regime dominated during retrograde |  | | Journal (article/letter/editorial) | | Chile. This belt includes the large Candelaria mine and a group of middle- and small-sized mines in...The main sulfide stage followed with formation of pyrite and chalcopyrite at temperatures of >470° to 328°C...activity. Sulfur isotope ratios of chalcopyrite, pyrite, pyrrhotite, and sphalerite from the Bronce, Candelaria...of magmatic origin. Anhydrite from the Candelaria mine paragenetically overlaps with chalcopyrite. Fluid...25° 70° 69° 70Ë15' W b) Atacama Fault Zone Teresita CopiapĂł N Taltal Providencia Prospect Manto |  | | Journal (issue) | | crystals on matrix, 17.2 cm, from the NâChwaning I mine, collected in 1978. Private collection and photographer...Show and Riverpark Inn Rhodochrosite, Sweet Home Mine, USA, 10 cm Photo: Malte Sickinger MARCUS BUDIL...budil-minerals.com Chrysocolla on Malachite Mashamba West Mine Democratic Republic of Congo 26 cm - Joe Budd Photo...mineral shows worldwide! Rhodochrosite - Sweet Home Mine, Colorado - 13cm | Brazilianite - Minas Gerais,...from the Hotazel mine emerged onto the international market. The NâChwaning I mine, opened in 1972, yielded |  | | 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 |  | | Catalog/List | | Ward Minera! on QUARTZ RHODOCHROSITE District Mine. Climax Climax olTolg-Yole Lake. County. ncredibly...years to find a specimen rhombs rhombs Climax Mine, ot rhodochrosite $50 OOU 60.000 Ex The ... 8 nn ae from the \ slight Âą « nax 1g Mine : The Kevin Ward Mineral Exceptional German...silver was found in the late 1970s at the Dukat Mine measures which is mainly known by 6 cm Ex: Helmut... initely a unique opportunity. From the Dukat Mine, Dukat Gold-Silver Ore Field, Magadan Oblastâ, East |  | | Journal (issue) | | Tampa, FL Correspondents Miguel Calvo Zaragoza, Spain Michael P. Cooper Nottingham, England Thomas P....ecord Articles Rare sulfosalts from the Van Silver mine, British C olum bia...............................Balacko Famous mineral localities: The Brownley Hill mine, Alston Moor, Cumbria, England....................COVER: ATACAMITE in GYPSUM, 6.8 cm, from the Lily mine, lea, Peru. Irv Brown collection; Jeff Scovil photo...British Columbia the Silver Tunnel o f the Van Silver mine has produced hundreds o f rare and beautiful crystal |  | | Journal (article/letter/editorial) | | displacement of 1200 m near Las Torres mine and of 1700 m at the Valenciana Mine. The Veta Madre vein was discovered...diagenesis (e.g. Gifkins et al., 2005). Near El Cubo mine the Calderones formation includes thin (3â5 m thick)...55 ± 0.2 Ma, respectively. Close to the Peregrina mine (Fig. 3) a dacitic lava dome is exposed. This structure...area located south of the tail ponds of El Cubo mine by BĂĄez-LĂłpez (2014) are 33.0 ± 0.25 and 33.2 ±...propylitization (presence of calcite, chlorite, epidote and pyrite), potasiïŹcation (presence of adularia), sericitization |
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