 | | Journal (article/letter/editorial) | | AKHTER (S. M.), see QAISER(M. A.), 735. Alaer6n mine, Copiap6, Chile, arsenolamprite, 732. Ala di Stura...montebrasite, 4r4. Amblygonite mine, Caceres, Spain, montebrasite, 414. Amelia County, Virginia, albite, I56;...from Mull and Morvern, 934. Bala Durga Gourishankar mine, Tummalatalupur, Nellore, India, microcline perthite...Egyptian serpentinites and talc-carbonates, 394. BAYLlSS(P.), Cobaltite, gersdorffite, and ullmannite, 26....Crystallization of anorthite, 78o. Bhavani Sankar mine, Tummalatalupur, Nellore, lndia, muscovite, I4O |  | | Journal (article/letter/editorial) | | (serpentinized peridotite and serpentinite), tremolite‐talc rocks, talc‐carbonate rocks, listwaenite‐like rocks and...chromite. Pentlandite, pyrrhotite, arsenopyrite, gersdorffite and pyrite are the most common sulphide minerals...either as an invisible phase associated with gersdorffite, arsenopyrite, and As‐rich pyrite or as native...country rocks (Uçurum, 2000). In the Barramiya district, listwaenite is ridges ophiolite, ii) Archean...the to peridotites, pyroxenites, chromitites, and talc‐carbonate rocks serpentinite and the underlying |  | | Journal (article/letter/editorial) | | SULFIDE PARAGENESIS IN THE EASTERN METALS MONTMAGNY COUNTY, QUEBEC DEPOSIT, D. W. POLLOCK ABSTRACT The...the surface. The nickel minerals millerite, gersdorffite,and violarite havebeenidentifiedin the North...studyinga suiteof specimens from the Eastern Metals mine in the Eastern Townships of the Provinceof Quebec...possibleorigin of the deposit. Location.---The Eastern Metals mine is situated in Rolette township, Montmagnycounty...carbonatizedzone adjacentto the peridotite. Local zonesof talc schistare frequentlyencountered in the silica-carbonate |  | Bondu, Raphaël, Cloutier, Vincent, Benzaazoua, Mostafa, Rosa, Eric, Bouzahzah, Hassan (2017) The role of sulfide minerals in the genesis of groundwater with elevated geogenic arsenic in bedrock aquifers from western Quebec, Canada. Chemical Geology, 474. 33-44 doi:10.1016/j.chemgeo.2017.10.021 | Journal (article/letter/editorial) | | is mainly present as arsenopyrite (FeAsS) and gersdorffite (NiAsS), with arsenic and sulfur contents ranging...largely depends on the mineralogy of arsenic. Gersdorffite-rich samples release larger amount of arsenic...mainly attributed to the high reactivity of gersdorffite compared to arsenopyrite. However, the high...associated with the occurrence and extent of gersdorffite-rich zones in the bedrock. These results are...arsenopyrite (FeAsS), cobaltite (CoAsS) and gersdorffite (NiAsS); and sulfosalts such as enargite (Cu3AsS4) |  | Abzalov, M. Z., Brewer, T. S., Polezhaeva, L. I. (1997) Chemistry and distribution of accessory Ni, Co, Fe arsenic minerals in the Pechenga Ni-Cu deposits, Kola Peninsula, Russia. Mineralogy and Petrology, 61 (1) 145-161 doi:10.1007/bf01172481 | Journal (article/letter/editorial) | | of the arsenic minerals fall in the cobaltite-gersdorffite series, with minor arsenopyrite, nickeline and...of mineralization. Nickeline, maucherite and gersdorffite occur mainly in hydrothermally altered Ni-Cu...particular stringer zone sulphides and mineralized talc-carbonate rocks. Arsenopyrite occurs only in pentlandite-free...intensely serpentinized and locally altered to tremolite-talc-carbonate rocks. Serpentinized wehrlites and serpentinites...sub-greenschist and greenschist zones. The tremolite-talc-carbonate assemblage occurs mainly within tectonic |  | Zegers, T. E., Barley, M. E., Groves, D. I., McNaughton, N. J., White, S. H. (2002) Oldest Gold: Deformation and Hydrothermal Alteration in the Early Archean Shear Zone-Hosted Bamboo Creek Deposit, Pilbara, Western Australia. Economic Geology, 97 (4) 757-773 doi:10.2113/gsecongeo.97.4.757 | Journal (article/letter/editorial) | | amphibolite facies deposits in the Mount York district of the Central Pilbara (Neumayr et al., 1998)...ultramafic volcanic unit, now comprising mainly talc-chlorite mylonitic schist. Similar shear zones occur...detailed study carried out underground in the Kitchener mine. Setting and lithologies of the Bamboo Creek shear...mafic volcanics/chert/tuffs Shale unconformity gold mine FIG. 2. Structural map of the Bamboo Creek mining...Creek shear zone. Only in the case of the Kitchener mine do foliations and lineations represent averaged |  | | Journal (article/letter/editorial) | | lenses of massive sulfides hosted by serpentinite and talc schist, and is relatively undeformed if compared...carbonates, and amphiboles, with minor cobaltite–gersdorffite, sphalerite, ilmenite, and quartz, and rarely...massifs compris dans la serpentinite et le schiste à talc. Elle n’est pratiquement pas déformée, contrairement...amphiboles, avec des quantités mineures de cobaltite–gersdorffite, sphalérite, ilménite et quartz, et rarement...Donaldson (1984), Lesher & Keays (1984); Thompson mine: Chen et al. (1993), and Fortaleza de Minas: Brenner |  | | Journal (article/letter/editorial) | | serpentine-group mineral, less frequently calcite, quartz and talc. Accessory minerals of the listvenite include Cr–Ni-rich...millerite, polydymite, violarite, siegenite, gersdorffite, cobaltite, chalcopyrite and galena). The micas...magnesite. They overgrew aggregates of magnesite I and talc (Fig. 2d). Chemical composition of the serpentine...01–0.03 apfu) and Ni (∼0.1 wt. % NiO; ∼0.005 apfu). Talc forms irregular aggregates (up to 0.1 mm) in association...serpentine-group minerals (Fig. 2d). Composition of talc (Tab. 2) shows slightly increased content of Fe |  | | Journal (article/letter/editorial) | | PGEs to form PGMs disseminated within tremolite, talc and serpentine. This final stage may account for...millerite, mackinawite (Ni-bearing), cubanite, gersdorffite, tetrahedrite, marcasite, stibnite and molybdenite...peridotite (pyrite and calcite plus tremolite and talc after orthopyroxene). Abbreviations: cp, chalcopyrite;...sperrylite; sud, sudburyite; tsu, tsumonite; gdf, gersdorffite; sbp, stibiopalladinite; trem, tremolite. [See...within tremolite needles (see box in [g]). (i) Gersdorffite crystal containing a michenerite inclusion hosted |  | Kalinin, A. A., Kazanov, O. V., Kudryashov, N. M., Bakaev, G. F., Petrov, S. V., Elizarov, D. V., Lyalina, L. V. (2017) New Promising Gold-Ore Objects in the Strelna Greenstone Belt, Kola Peninsula. Geology of Ore Deposits, 59 (6) 453-481 doi:10.1134/s1075701517060022 | Journal (article/letter/editorial) | | strip of metasomatic biotite–calcite rock with gersdorffite–arsenopyrite dissemination. The native gold...localized at the contact of arsenopyrite and gersdorffite with gangue minerals. Gold mineralization is...width reaches ~40 km near the Sergozero– Babozero district. The SGB occurs in the northern part of Strelna...transformed into chlorite–actinolite amphibolite and talc–chlorite–actinolite schists. To the south and the...potential gold district. The Central Kola Expedition performed prospecting for gold in this district in 2012–2014 |  | | Journal (issue) | | A BS TRA CT Composue grai11s ofcobaltite-gersdorffite h 'llh gold i11cl11sio11s occur i11 dolo11111e-rich...vei11s at the Lo11g T1111nel mine. The vei11s also coll/ai11 mi11or talc. chlorite a11d Fe-Ni sulphides...sulphides a11d are bordered by talc-carbo11ate rocks gradi11g away into u11altered serpe1111nite. Cobaltite...ofgold, dolomite and other sulphides. Cobal11a11 gersdorffite forms the margi11al portio11s of composite grains...dolomuc veins a t 1hc abandoned Long Tunnel gold mine. Many grains contain microscopic inclusion, of gold |  | | Journal (article/letter/editorial) | | of the cobaltite-gersdorffite series, paragenetically associated with serpentine-talc-calcite gangue minerals...serpentinite- Chalcopyrite-pentlandite-pyrrhotite, talc-amphibole-chloritepyrrhotite-pentlandite-chalcopyrite...fine-grained monomineralic pentlandite intergrown with talc and other gangue minerals. In the ores that have...intensive metamorphism (serpentinization, development of talc, carbonatization), there is an increase in the extent...wehrlite altered to chlorite-carbonate-actinolite-talc rock; densely dissemi nated mineralization in wehrlite |  | Mondal, S. K., Baidya, T. K., Rao, K. N. G., Glascock, M. D. (2001) PGE and Ag mineralization in a breccia zone of the Precambrian Nuasahi ultramafic-mafic complex, Orissa, India. The Canadian Mineralogist, 39 (4) 979-996 doi:10.2113/gscanmin.39.4.979 | Journal (article/letter/editorial) | | extensively altered to serpentinite, talc – serpentine schist and talc – serpentine – chlorite schist. Carbonate...orthopyroxene, amphibole, biotite, white mica, plagioclase, talc, serpentine-group minerals, clinochlore, carbonate...chalcopyrite. Euhedral crystals of cobaltite–gersdorffite (cb–gd) (Fig. 5) are found in the chalcopyrite-rich...occasionally infills the fractures within cobaltite–gersdorffite; in places, tongues of chalcopyrite from the...encroached within the cobaltite–gersdorffite euhedra. Cobaltite–gersdorffite crystals are commonly white |  | | Journal (article/letter/editorial) | | deposits. Arsenopyrite and, to a lesser extent, gersdorffite are the main sulfarsenide minerals in almost...minerals have been identified from the Bou Azzer district, of which cobalt and nickel minerals are the most...(Kolkovski et al., 2003). The Bou Azzer mining district in southern Morocco of the central Anti-Atlas...al., 2005; D’Lemos et al., 2006). The Bou Azzer district lies in the central part of the AntiAtlas Mountains...deposits. (A). Mining activity at old Ait Ahmane mine located at the contact between serpentinite and |  | | Journal (article/letter/editorial) | | presented by bornite, chalcopyrite, and covellite. Talc–breunnerite– quartz and muscovite– breunnerite–quartz...sulfide and sulfoarsenide mineralization: pyrite, gersdorffite, sphalerite, Ag–Bi and Bi-galena, millerite...Fig. 3. Replacement of orthopyroxene (Opx) with talc (Talk) and olivine (Ol) with serpentine Serp (black)...olivine, whereas orthopyroxene is replaced with talc, serpentine, and cummingtonite as very fine veinlets...serpentinite results in the formation of rocks with talc and carbonates in various quantitative proportions |  | | Journal (article/letter/editorial) | | serpentinecarbonate rocks, serpentine-talc-carbonate rocks, talc-carbonate rocks, talc-carbonate-chlorite rocks,...original rocks Location Source of references Talc (fuchsite), ankerite, magnesite, ferroan dolomite...processes involved in carbonatized serpentinite: talc-carbonate rocks, quartzbreunnerite and quartz-ferroan...quartz, mica (muscovite, sericite and fuchsite); talc, serpentine, magnetite, hematite, sulphides (pyrite...rocks, talc-carbonate rocks Quartz-magnesite rocks Ortholistvenites: talc-carbonate rocks, talc rocks |  | | Journal (article/letter/editorial) | | coal, gold, lead, manganese, phosphate, silver, talc, vermiculite, and zinc is impressive. The official...view showing the Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded...mines at Butte in Silver Bow County and the Black Pine mine in Granite County have produced many fine crystal...Beaverhead County, the pegmatites of Jefferson County, and the Snowbird mine in Mineral County continue...Highlands Centennial Nugget in 1989 in Silver Bow County. The seventh largest gold nugget found in Montana; |  | | Journal (article/letter/editorial) | | the manufacture of nails and simple iron objects. Talc and steatite were mined for use in such things as...lubricants, absorbents, and "baby powders." Ver mont's talc resources have been reported by Chidester, Billings...1910). At one time, jasper was mined at the Parrot mine (Chittenden Co.) on a small scale for use in colorful...The Belvidere Mountain quarry, Low ell (Orleans County) is the most signifi cant locality in the state...producers. The nearby hamlet of Eden Mills (Lamoille County) is the commonly given but incorrect name for the |  | | Journal (article/letter/editorial) | | The Ishkinino deposit is located in the Gai ore district, one of the most productive in terms of Cu and...northwest of the latter in the Baimak–Buribai district. The evolution of geological complexes of the...sheets of volcanic and sedimentary rocks. Zones of talc–carbonate metasomatism replace ultramafic rocks...roof of serpentinite sheet and is accompanied by talc–carbonate metasomatic rocks replacing serpentinite...serpentinites. Serpentinites are replaced by carbonate, talc, and chlorite. GEOLOGY OF ORE DEPOSITS Vol. 48 |  | | Journal (article/letter/editorial) | | ilmenite, gersdorffite, magnetite, biotite, magnesiohornblende, clinochlore, lizardite and talc. X-Ray diffraction...Clinochlore (Mg,Fe )5Al(AlSi3O10)(OH)8 Clc Gersdorffite NiAsS Ger 2+ Ilmenite Fe TiO3 Ilm Lizardite...Pentlandite (Fe,Ni)9S8 Pn Pyrrhotite Fe1-xS Po Talc Mg3(Si4O10)(OH)2 Tlc 2.1. Microscopic methods...chalcopyrite (Fig. 2, 3), ilmenite (Fig. 3c), gersdorffite (Fig. 3d) and chromite ones (Fig. 3b). These...ilmenite; D) Pyrrhotite with pentlandite and gersdorffite. 54 Brought to you by | Uniwersytet Slaski |  | | Journal (volume) | | troilite, mackinawite, cubanite, sphalerite and gersdorffite also occur. The accessory ore minerals are gold...Violarite Chalcopyrite Pyrite Sphalerite Cuba nite Gersdorffite Tell urobismu thi,te Chromite Magnetiote Mackinawite...Magnetite Ilmenite Gold Wehrlite M erenskylite Gersdorffite S tand ard f chromediopside, corundum, )...quartz, (3) antigorite-talc- chlori'te-carbonate ± actinoli te ± epidote, (4) talc-carbona te- chlori te-an...sulphide ore bodies is an ultramafic lens consisting of talc-carbonate rocks, serpentinites and amphibo'le-chlo- |  | | Journal (article/letter/editorial) | | such as pyrite, chalcopyrite, arsenopyrite, gersdorffite and pentlandite minerals. Characterizing gold...depleted or barren from gold even in the same district. For example, Oweiss and Khalid, (1991), mentioned...from 2 to 5 gram /ton where as group I in the same mine, with the same alteration, has gold values less...fluids. This is SC R indicated in Um Rus gold mine where the appearance of sericite in silica-carbonates-chlorite...along thrusts with the development of a range of talc, talc-carbonate and reddish brown quartz-carbonate |  | Xu, Lin-Gang, Kong, Zhi-Gang, Qu, Jian-Fei, Li, Bao-Long, Qiu, Zhi-Yin, Olin, Paul, Danyushevsky, Leonid (2020) Metallogenic model of the Jinchang Au-Ni deposit in the Ailaoshan belt, SW China, determined on the basis of pyrite trace element contents, in-situ sulfur isotope composition and PGE geochemistry. Ore Geology Reviews, 120. 103415 doi:10.1016/j.oregeorev.2020.103415 | Journal (article/letter/editorial) | | to the Au mineralization in the Jinchang mining district. Currently, the interpretation of the Ni mineralization...deposit is located ~ 10 km northeast of Mojing County, which is geographically located in the middle...(Fig. 3). The eastern part of the Jinchang mining district is the Jinchang ultramafic and mafic sequence...the Jinchang ultramafic intrusion in the mining district (Fig. 4 A, B; Fig. 5 A). 3.1 Stratigraphy The...The Jinchangyan Formation in the mining district occurs as a NW-trending bed with a total thickness of |  | | Journal (article/letter/editorial) | | forming an epigenetic sulpharsenide (cobaltite–gersdorffite) assemblage.5 Notwithstanding the low PGE contents...ore minerals by serpentine, chlorite, amphibole, talc, mica and brannerite. The Cu–Ni sulphide mineralization...pyroxene, biotite, serpentine, amphibole, chlorite, talc, quartz, albite, sericite and carbonate species...main PGE carriers are minerals of the cobaltite–gersdorffite series. They occur in metamorphosed ores and...Co-rich members, closer to cobaltite than to gersdorffite, and contain Pt, Rh, Ir, Ru and Os as solid |  | | Report (issue) | | masses and crysta l s in vugs at the Highland Bell Mine , Wallace Mountain , n ear Beaverdell , 23 miles...3 Argentite has b een found at the Silver King Mine , Toad Mountain, about 5 miles south of Nelson (G...supergene mineral replacing galena at the Hewitt Mine, and as films associ ated w ith nativ e silver coating... polybasite and argyrodite , at the DollyVarden Mine, 18 miles from the head of Alice Arm, near the headwaters...L/I A rare constituent of the ore at the Eldorado Mine, Great Bear Lake, argcntite occurs as inclusions |
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