 | | Report (issue) | | aragonite, pyrite, quartz (Quebec, Canada); analcime, dolomite, quartz, calcite, pyrite, albite, cryolite... Bolzano, Italy. In the Simplon Tunnel, Valais, Switzerland. At Komana, Drin Valley, Albania. From Lahóca...occurrences: I. eucryptite, pollucite, rozenite, epsomite, dawsonite, fairchildite and bütschliite. Can |  | | Report (chapter) | | closed-basin lakes, in rock outcrops, and in mines and mine wastes has been noted since early antiquity. The...ancient civilizations. It forms from the oxidation of pyrite in shales and slates and from oxidation of sulfurous...sulfides, such as cobaltite. He goes on to say that “Pyrite , unless it contains sulphates, is either a golden...commonly is caused by different amounts of admixed pyrite with sulfate minerals. From the days of the Greek...chalcanthite were well known to form from the corrosion of pyrite and chalcopyrite by moisture (Agricola 1546, footnotes |  | | Journal (article/letter/editorial) | | abandoned mine sites. Sulfate salts of Fe, which form from the oxidative weathering of pyrite or pyrrhotite...these sites. Acid generated from the oxidation of pyrite or pyrrhotite can attack carbonate and silicate...sulfate heptahydrate, epsomite [MgSO4·7H2O], is orthorhombic and belongs to the epsomite group, wherein morenosite...temperature for the binary systems of bieberite-epsomite, bieberite-goslarite, and bieberite-morenosite...equilibria is –238.23 kJ/mol (Chou and Seal 2005), for epsomite-hexahydrite equilibria is –238.73 kJ/mol (Chou |  | | Journal (article/letter/editorial) | | TRACE ELEMENTS IN STREAM WATERS POLLUTED BY ACID MINE-DRAINAGE: THE CASE OF PEÑA DEL HIERRO, SOUTHWESTERN...polluted by acid mine-drainage in the abandoned mine-site Peña del Hierro, in the Iberian Pyrite Belt. Several...Several streams emerging from the waste dumps of the mine were sampled for water and efflorescences at the...pickeringite, and occasionally, rhomboclase, alpersite, epsomite, hexahydrite and starkeyite. Concerning the storage...most important phase retaining As. Alpersite and epsomite can store up to 1–2 wt.% of Zn and Cd. Magnesiocopiapite |  | | Journal (article/letter/editorial) | | minerals Review Sulfates from the Pyrite Ore Deposits of the Apuan Alps (Tuscany, Italy): A Review Cristian...occurrence of sulfate minerals associated with the pyrite ores of the southern Apuan Alps has been known...Sulfate assemblages were identified in all the pyrite ore deposits from the studied area but the more...understanding of the acid mine drainage (AMD) systems associated with pyrite oxidation. More than 20 different...scordariite) have their type localities in the pyrite ore deposits of the Apuan Alps. A review of the |  | Weightman, Erin, Craw, Dave, Rufaut, Cathy, Kerr, Gemma, Scott, James (2020) Chemical evolution and evaporation of shallow groundwaters discharging from a gold mine, southern New Zealand. Applied Geochemistry, 122. 104766pp. doi:10.1016/j.apgeochem.2020.104766 | Journal (article/letter/editorial) | | of shallow groundwaters discharging from a gold mine, southern New Zealand Erin Weightman, Dave Craw...M. Kersten Waste rock piles at the Macraes gold mine in southern New Zealand expose abundant fresh schist...to alteration reactions that principally involve pyrite, chlorite, and calcite, yielding alkaline waters...waters (pH~8) with elevated dissolved loads. Pyrite oxidation has resulted in dissolved sulfate concentrations...precipitation. Localised precipitation of Mg-sulfate (epsomite) also occurs, but this redissolves during rain |  | Galliano, Yuri, Carbone, Cristina, Balestra, Valentina, Belmonte, Donato, De Waele, Jo (2022) Secondary Minerals from Minothem Environments in Fragnè Mine (Turin, Italy): Preliminary Results. Minerals, 12 (8) 966 doi:10.3390/min12080966 | Journal (article/letter/editorial) | | Secondary Minerals from Minothem Environments in Fragnè Mine (Turin, Italy): Preliminary Results Yuri Galliano...Secondary Minerals from Minothem Environments in Fragnè Mine (Turin, Italy): Preliminary Results. Minerals 2022...cristina.carbone@unige.it Abstract: The Fragnè mine, located in the Lanzo valley in the municipality...(“prasinite”), and metagabbroic rocks. In particular, the pyrite ore deposit occurs as massive mineralizations within...minerals and morphologies of minothems from the Fragnè mine that are found only in abandoned underground works |  | | Journal (article/letter/editorial) | | HALF-CENTURY OF ENVIRONMENTAL MINERAL FORMATION ON A PYRITE-BEARING WASTE DUMP IN THE MÁTRA MOUNTAINS, HUNGARY...imre region, Mátra Mountains, Hungary. The last mine was closed in 1986 without remediation. In 2006...still releasing acid mine-drainage owing to the large amount of oxidizing pyrite in the walls. During...opportunity for the systematic sampling of the products of mine-waste alterations. One of these accessible “natural...altering waste-dump material. Minerals found are pyrite, gypsum, jarosite, hydroniumjarosite, plumbojarosite |  | | Report (issue) | | .......................................... 26 Epsomite ........................................................................................... 44 Pyrite .................................................celestite, copiapite, epsomite, fluorite, marcasite, melanterite, millerite, pyrite, pyrrhotite, smythite...aragonite, calcite, gypsum, hematite, marcasite, mica, pyrite, quartz, and galena. Their use of galena, which... p. 39) that the hydrated halloysite at Gardner Mine Ridge (see p. 36) conceivably could have been formed |  | | Journal (issue) | | Heidelberg, W. Germany Eric Offermann Arlesheim, Switzerland Jeffrey A. Scovil Phoenix, AZ Harold and Erica...Peter Richards & D. G. Howard The Pezinok antimony mine, Male Karpaty Mountains, Slovakia................. C. A. (1989) On right angle bends in filiform pyrite. Mineralogical Record, 20, 457464. H ENTSCHEL,...Senkvicka 5, 902 01 Pezinok, Slovakia T h e P ezin o k mine, an antim ony deposit m ined since 1 9 4 0 , has...the locality. INTRODUCTION The Pezinok antimony mine in southwestern Slovakia is a relatively small ore |  | | Journal (article/letter/editorial) | | Ronneburgite K2MnV4O12 M ONOCLINIC Locality: The mine dump of the Lichtenberg open-pit at the southwest...limestones. Associated minerals are: hummerite, gypsum, epsomite, picromerite, hematite and an unidentified K–Mg–Mn...pegmatites, and natrolite, titanite, calcite and pyrite in hornfels. Associated minerals at Nanna are aegirine...PbCr2(CO3)2(OH)4•H2O O RTHORHOMBIC Locality: The Red Lead mine, Zeehan–Dundas region (Lat. 41° 53' S, Long. 145°...Fe2+)(Cr3+,Fe3+)2(Ti,Nb)2Si4O22 M ONOCLINIC Locality: Mine N97, Ilmen Natural Reserve, southern Urals, Russia |  | | Journal (article/letter/editorial) | | salt types include Ca and Mg sulfates (gypsum, epsomite, hexahydrite, bloedite) as well as mixed Fe2 +...Copiapite-rich samples exhibit the highest As, Cd and Cu, epsomite – hexahydrite rich samples have the highest Zn...Key words: Slag, mineral efflorescences, gypsum, epsomite, hexahydrite, copiapite, roemerite; Río Tinto...stockpiles, tailings dams, processing plants and mine workings. The Río Tinto has a deep red-brown-yellow...classic example of a river impacted by AMD (acid mine drainage). The Tinto river remains strongly acid |  | | Journal (article/letter/editorial) | | N March 1961 we visited the St. Patrick's copper mine at Avoca, Co. Wicklow, Ireland. Whilst collecting...A t the end of our visit, Dr. G. J. Murphy, the Mine Geologist, handed us a specimen of a fine-grMned...efflorescence collected from an old adit in the mine area. Qualitative tests indicated t h a t both these...shows that the material from St. Patrick's copper mine is morenosite and not retgersite (NiSO4.6H20). Dr...within the solid solution series from morenosite to epsomite. Hutton (1947) demonstrated that the refractive |  | | Journal (article/letter/editorial) | | 708 33 Ostrava-Poruba, Czech Republic Karviná Mine, ČSA Mining Plant, ul. Čs. armády 1, 735 06 Karviná-Doly...Introduction IN common with other ferrous sulfides, pyrite and marcasite are unstable chemically when exposed...acid waters in mining waste and acidification in mine dumps, which are two of the most significant environmental...Mineralogical Society the sulfur contained in the pyrite and marcasite, simultaneous oxidation of Fe2+ to...hydrolysis can produce two moles of H2SO4 per mole of pyrite. Two moles of H+ are created during the oxidation |  | Valente, T., Grande, J.A., de la Torre, M.L., Santisteban, M., Cerón, J.C. (2013) Mineralogy and environmental relevance of AMD-precipitates from the Tharsis mines, Iberian Pyrite Belt (SW, Spain) Applied Geochemistry, 39. 11-25 doi:10.1016/j.apgeochem.2013.09.014 | Journal (article/letter/editorial) | | AMD-precipitates from the Tharsis mines, Iberian Pyrite Belt (SW, Spain) T. Valente a,b, J.A. Grande b...paper documents the solid phases associated to acid mine drainage (AMD) at the Tharsis mines (SW Spain)....Ltd. All rights reserved. 1. Introduction Acid mine drainage (AMD) from abandoned mines is an important...regions that are facing water scarcity. The Iberian Pyrite Belt is one of the largest metallogenetic provinces...described by reactions 1 and 2, relative to pyrite. Pyrite is oxidized by oxygen. However, ferric iron |  | Buzzi, Jorge, Riaza, Asunción, García-Meléndez, Eduardo, Weide, Sebastian, Bachmann, Martin (2014) Mapping Changes in a Recovering Mine Site with Hyperspectral Airborne HyMap Imagery (Sotiel, SW Spain) Minerals, 4 (2) 313-329 doi:10.3390/min4020313 | Journal (article/letter/editorial) | | com/journal/minerals Article Mapping Changes in a Recovering Mine Site with Hyperspectral Airborne HyMap Imagery (Sotiel...to map mine waste from massive sulfide ore deposits, mostly abandoned, on the Iberian Pyrite Belt (southwest...(southwest Spain). Mine dams, mill tailings and mine dumps in variable states of pyrite oxidation are recognizable...sequence of algorithms used to produce maps of the mine sites. The mineralogical identification capability...geological setting and the recovery state of the mine site. Subtle mineralogical changes are enhanced |  | | Report (issue) | | district, 2, As radial clusters near Lippincott mine, Ubehebe McAllister (4) p. 52. SODA AMPHIBOLES...bakerite has been collected from the Stirling Borax mine, Tick Canyon, Pemberton (p.c. '58). This is an unusual...lens as pale brown crystals at the Foster Bluebird mine 3 miles north of the abandoned station of Ogilby...Canyon, near junction with the road to Cerro Gordo mine, McAllister (4) p. 53. Mariposa County: 3, Colorless... Reported as coatings in fractures from the Old Mine ore body, Kinkel et al. (2) p. 89. ARAGONITE Inyo |  | | Journal (article/letter/editorial) | | feldspars and clay minerals), calcite, dolomite and epsomite. Clay analysis registered the existence of five...© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed...outputs also showed the presence of dolomite and epsomite (Figure 5c,e). InInthe central portion of the...consisting of the sum of Fe (red) and S (blue), is pyrite. This mineralogical composition and organization...outputs also showed the presence of dolomite and epsomite (Figure 5c,e). In order to understand the meaning |  | | Journal (article/letter/editorial) | | largest working mine today is that of the Chief Consolidated Mining Company. It was in this mine that the author...rather interesting occurrence of the mineral epsomite. Epsomite, as might be suspected from its name, is...being granular in texture and coining in a box, epsomite occurs as a hairlike efflorescence, similar to...secondary deposit in the tunnels and stopes of the mine. In the operating tunnels the mineral has no opportunity...their normal length. The author first visited the mine in the summer of 1947, and after obtaining permission |  | | Report (issue) | | the iron sulfide minerals, pyrrhotite and (or) pyrite. Detailed descriptions of the geology and mineralogy...caused by the oxidation of sulfide minerals such as pyrite and pyrrhotite, which occur in the rocks of the...that involve the oxidation of pyrite. The initial oxidation of pyrite produces ferrous iron ions and...production of ferric iron leads to further oxidation of pyrite, with the ferrous iron produced being oxidized...pyrrhotite also leads to acidic conditions, but pyrite produces more acid per mole than pyrrhotite (Nicholson |  | | Journal (issue) | | 174 Minerals which Alternate with the Seasons: Epsomite versus Hexahydrite versus Starkeyite Richard S...Dietrich COVER STORY : Fairfieldite from the Foote mine in Kin!!$ Mountain, North Carolina. Now part of...HISTORY ln 1938 the Foote Mineral Company spodumene mine at Kings Mountain , Cleveland County, North Carolina...28012 GENERAL DESCRIPTION The geology of the Foote Mine was described by Kesler ( 196 1). It is part of...time, interfering with mine operations and conflicting with established mine regulations. The result |  | | Journal (article/letter/editorial) | | Fe). These sulfate solutions resulted from acid mine drainage. Fourteen waste samples were analyzed through...change into hematite under laser irradiation. Epsomite and hexahydrite are stable at 53.6 mW laser power...common sulfides (especially pyrite) and then through precipitation from acid mine drainage (AMD) (Alpers et...ore deposit are ferricopiapite, coquimbite, and epsomite (Apopei et al. 2012). Therefore, the goal of this...minerals are galena (PbS), sphalerite (ZnS), and pyrite (FeS2). Chalcopyrite (CuFeS2) and sulfosalts such |  | Courtin-Nomade, A., Grosbois, C., Marcus, M. A., Fakra, S. C., Beny, J.-M., Foster, A. L. (2009) THE WEATHERING OF A SULFIDE OREBODY: SPECIATION AND FATE OF SOME POTENTIAL CONTAMINANTS. The Canadian Mineralogist, 47 (3) 493-508 doi:10.3749/canmin.47.3.493 | Journal (article/letter/editorial) | | phases identified are mainly sulfates (jarosite, epsomite, schwertmannite), Fe (oxy-)hydroxides (goethite...Keywords: potentially toxic trace elements, acid mine-drainage, Fe and Mn oxides, jarosite, micro-Raman...correspondent principalement à des sulfates (jarosite, epsomite, schwertmannite), des (oxy-) hydroxydes de Fe... Californie. Introduction Toxic metals in acid mine-drainage (AMD) cause detrimental environmental effects...from natural unaffected outcrops. We will refer to mine-affected and unaffected as MA and UA, respectively |  | | Journal (issue) | | Bochum, W. Germany Eric Offermann Arlesheim, Switzerland photomicrography: Julius Weber Mamaroneck, NY....... 5 by C. S. Stolburg Minerals of the Pereta mine, Tuscany, Italy ..................................and M. Tazzini Alteration minerals of the Cetine mine, Tuscany, It a ly ................................ Sabelli and G. Brizzi Siegenite from the Buick mine, Bixby, Missouri .................................years he was Resident Geologist at the Copper Queen mine until Phelps Dodge Cor poration closed all the |  | | Book | | example. The spellings of names follow CIM; thus pyrite, baryte and sylvine replace the older pyrites,...Keweenaw area of north Michigan; at the Copper Queen mine, Bisbee, Arizona and at Georgetown, New Mexico....occurrence care should be taken not to confuse gold with pyrite, which is superficially similar. Alluvial deposits...areas including Kimberley, Pretoria (the Premier mine is in this area), and Jagersfontein in the Orange...Localities. Lead is found in Sweden at the Harstig mine, Pajsberg; from the gold placers of the Ural Mountains |
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