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1

Sinyakova, Elena, Victor Kosyakov, Galina Palyanova, and Nikolay Karmanov. "Experimental Modeling of Noble and Chalcophile Elements Fractionation during Solidification of Cu-Fe-Ni-S Melt." Minerals 9, no. 9 (2019): 531. http://dx.doi.org/10.3390/min9090531.

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We carried out a directed crystallization of a melt of the following composition (in mol. %): Fe 31.79, Cu 15.94, Ni 1.70, S 50.20, Sn 0.05, As 0.04, Pt, Pd, Rh, Ru, Ag, Au, Se, Te, Bi, and Sb by 0.03. The obtained cylindrical sample consisted of monosulfide solid solution (mss), nonstoichometric isocubanite (icb*), and three modifications of intermediate solid solution (iss1, iss2, iss3) crystallized from the melt. The simultaneous formation of two types of liquids separated during cooling of the parent sulfide melt was revealed. In the first, concentrations of noble metals associated with Bi
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2

Georgatou, Ariadni A., and Massimo Chiaradia. "Magmatic sulfides in high-potassium calc-alkaline to shoshonitic and alkaline rocks." Solid Earth 11, no. 1 (2020): 1–21. http://dx.doi.org/10.5194/se-11-1-2020.

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Abstract. We investigate the occurrence and chemistry of magmatic sulfides and their chalcophile metal cargo behaviour during the evolution of compositionally different magmas from diverse geodynamic settings both in mineralised and barren systems. The investigated areas are the following: (a) the Miocene Konya magmatic province (hosting the Doğanbey Cu–Mo porphyry and Inlice Au epithermal deposits, representing post-subduction) and (b) the Miocene Usak basin (Elmadag, Itecektepe, and Beydagi volcanoes, the latter associated with the Kişladağ Au porphyry in western Turkey, representing post-su
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3

Akizawa, Norikatsu, Tetsu Kogiso, Akira Miyake, Akira Tsuchiyama, Yohei Igami, and Masayuki Uesugi. "Formation process of sub-micrometer-sized metasomatic platinum-group element-bearing sulfides in a Tahitian harzburgite xenolith." Canadian Mineralogist 58, no. 1 (2020): 99–114. http://dx.doi.org/10.3749/canmin.1800082.

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ABSTRACT Base-metal sulfides (BMSs) are minerals that host platinum-group elements (PGE) in mantle peridotites and significantly control the bulk PGE content. They have been investigated in detail down to the sub-micrometer scale to elucidate PGE behavior in the Earth's interior. Base-metal sulfides are supposedly subjected to supergene and seawater weathering, leading to the redistribution of PGEs at low temperatures. Careful and thorough measurements of BMSs are thus required to elucidate PGE behavior in the Earth's interior. In the present study, a sub-micrometer-sized PGE-bearing sulfide i
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4

Andreev, O. V., V. V. Ivanov, A. V. Gorshkov, P. V. Miodushevskiy, and P. O. Andreev. "Chemistry and Technology of Samarium Monosulfide." Eurasian Chemico-Technological Journal 18, no. 1 (2016): 55. http://dx.doi.org/10.18321/ectj396.

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<p class="Pa10">Samarium monosulfide SmS (Fm3m, а = 5.967 Å, ΔЕ = 0.23 V, n = 10<sup>20</sup> cm<sup>–1</sup>, <em>σ</em><em> </em>= 500 Ω<sup>–1</sup> cm<sup>–1</sup>, <em>α</em><em> </em>= 350 μВ/K) is a thermoelectric material (Z>1) and, at the same time, a pressure-sensitive material (K≥40–50). Samarium monosulfide is a daltonide phase with a solid solution whose extent is mostly in the range of cationic vacancies: Sm<sub>1+x </sub>S<sub>1-x</sub>□<sub>
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5

Barnes, Sarah-Jane, E. Makovicky, M. Makovicky, J. Rose-Hansen, and S. Karup-Moller. "Partition coefficients for Ni, Cu, Pd, Pt, Rh, and Ir between monosulfide solid solution and sulfide liquid and the formation of compositionally zoned Ni – Cu sulfide bodies by fractional crystallization of sulfide liquid." Canadian Journal of Earth Sciences 34, no. 4 (1997): 366–74. http://dx.doi.org/10.1139/e17-032.

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Many nickel–copper sulfide orebodies contain Cu- and Fe-rich portions. The Fe-rich ore is generally richer in Os, Ir, Ru, and Rh and poorer in Pt, Pd, and Au than the Cu-rich ore. In komatiite-hosted ores Ni tends to be concentrated in the Cu-rich ore, whereas in tholeiitic ores it tends to be concentrated in the Fe-rich ore. The origin of this zonation could be due to crystal fractionation of Fe-rich monosulfide solid solution from a sulfide liquid. The crystal fractionation would produce an Fe-rich cumulate enriched in Os, Ir, Ru, and Rh and a fractionated liquid enriched in Cu, Pt, Pd, and
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6

Helmy, Hassan M., and Roman Botcharnikov. "Experimental determination of the phase relations of Pt and Pd antimonides and bismuthinides in the Fe-Ni-Cu sulfide systems between 1100 and 700 °C." American Mineralogist 105, no. 3 (2020): 344–52. http://dx.doi.org/10.2138/am-2020-7154.

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Abstract The stability relations of Pt and Pd antimonides and bismuthinides in the Sb- and Bi-bearing Fe-Ni-Cu sulfide systems have been experimentally determined at temperatures between 1100 and 700 °C in evacuated silica tubes. Both PtSb and PdSb are stable as immiscible liquids at temperatures above 1100 and 1000 °C, respectively. The Fe-Ni-Cu-sulfide melt that coexists with the immiscible antimonide melt can dissolve up to 3.8 wt% Sb at 1100 °C, whereas monosulfide solid solution (mss) dissolves very low amounts of Sb over the entire 1100–700 °C temperature range. The liquidus of Pt-antimo
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7

Shapovalova, Maria, Nadezhda Tolstykh, Roman Shelepaev, and Valery Kalugin. "PGE-Cu-Ni Mineralization of Mafic-Ultramafic Massifs of the Khangai Upland, Western Mongolia." Minerals 10, no. 11 (2020): 942. http://dx.doi.org/10.3390/min10110942.

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The mafic-ultramafic massifs with the PGE-Cu-Ni mineralization located in North-Central Mongolia: Oortsog, Dulaan, Mankhan, Yamat, and Nomgon were investigated. For the first time we consider these massifs as a single magmatic association and as fragments of Khangai batholith caused by the action of the plume responsible for the formation Permian Khangai LIP. The massifs fractionated from peridotite to gabbro have a similar typomorphic ore mineralogical and geochemical features, which change depending on the degrees of fractionation of magma and evolution of the sulfide melt. The least fractio
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8

Nishio, M., N. Kuwata, H. Hinode, M. Wakihara, and M. Taniguchi. "Partial molar enthalphy of formation of solid solution in transition metal sulfides by a combustion calorimetry." Thermochimica Acta 88, no. 1 (1985): 101–8. http://dx.doi.org/10.1016/0040-6031(85)85417-4.

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9

Brovchenko, Valeriya D., Sergey F. Sluzhenikin, Elena V. Kovalchuk, Sofia V. Kovrigina, Vera D. Abramova, and Marina A. Yudovskaya. "Platinum Group Element Enrichment of Natural Quenched Sulfide Solid Solutions, the Norilsk 1 Deposit, Russia." Economic Geology 115, no. 6 (2020): 1343–61. http://dx.doi.org/10.5382/econgeo.4741.

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Abstract The deepest terminations of the Mount Rudnaya subvertical massive sulfide offshoots of the Norilsk 1 orebody are composed of exceptionally fine grained sulfides that are believed to be natural quenched sulfide solid solutions. Copper-rich intermediate solid solution (ISS) and Fe-rich monosulfide solid solution (MSS) form an equigranular and lamellar matrix hosting MSS- and ISS-dominant globules. The nonstoichiometric chemical compositions of the solid solutions plot within their high-temperature fields known from experiments. MSS contains 19 to 35 wt % Ni, 0.09 to 0.45 wt % Co, and up
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10

Long, Yaqiong, Jing Yang, Xin Gao, et al. "Solid-Solution Anion-Enhanced Electrochemical Performances of Metal Sulfides/Selenides for Sodium-Ion Capacitors: The Case of FeS2–xSex." ACS Applied Materials & Interfaces 10, no. 13 (2018): 10945–54. http://dx.doi.org/10.1021/acsami.8b00931.

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11

Gervilla, Fernando, Alejandro Sáncnez-Anguita, Rogelio D. Acevedo, Purificación Fenoll Hach-Ali, and Andres Paniagua. "Platinum-group element sulpharsenides and Pd bismuthotellurides in the metamorphosed Ni-Cu deposit at Las Aguilas (Province of San Luis, Argentina)." Mineralogical Magazine 61, no. 409 (1997): 861–77. http://dx.doi.org/10.1180/minmag.1997.061.409.09.

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AbstractThe Las Aguilas Ni-Cu-PGE deposit is associated with a sequence of basic-ultrabasic rocks made up of dunite, harzurgite, norite and amphibolite. These igneous (partially metamorphosed) rocks, and their host granulites, gneisses and migmatites of probable Precambrian age, are highly folded. The sulphide ore, consisting of pyrrhotite, pentlandite and chalcopyrite, occurs in the cores of both antiform and synform structures, within dunite, harzburgite and mainly along shear zones in bronzitite, replacing small mylonitic subgrains. The platinum-group mineral assemblage is dominated by Pd b
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12

Nechvoglod, Olga V., and Alena G. Upolovnikova. "The study of the phase composition of the products of electrochemical oxidation of sulfide granules of the system Cu1.96S–Ni3S2–Cu–Ni." Butlerov Communications 57, no. 3 (2019): 149–54. http://dx.doi.org/10.37952/roi-jbc-01/19-57-3-149.

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The crystallization rate of copper and nickel sulfides influences on the phase formation processes. The high crystallization rate (about 103 degrees/s), achieved through granulation of the sulfide copper-nickel melt, leads to the stabilization of non-stoichiometric phases, the formation of ultrafine structures, which are grains and partial dissolution of the metal component in the sulfide. The structure of the granules is formed by nickel sulfide (Cu1.96S) phases in the form of dendritic inclusions of 2-20 µm in size in the nickel sulfide phase (Ni3S2). According to the phase diagram of the st
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13

Nasibullina, O. A., A. G. Gareev, and Rif G. Rizvanov. "Investigation of the Hydrogen Stratification of the Metal of the Active Gas Pipeline." Solid State Phenomena 284 (October 2018): 1302–6. http://dx.doi.org/10.4028/www.scientific.net/ssp.284.1302.

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One of the most common types of metal destruction in the oil and gas industry is hydrogen embrittlement. Hydrogen corrosion is a complex of negative effects of hydrogen on steel, leading to the destruction of metal structures. Hydrogen passes through a defect-free metal, without lingering in it. In the presence of defects, hydrogen is retained in the metal forming a brittle solid solution, metal stratification along the segregation streamer, blistering. Studies of the metal of a gas pipeline made of steel 09G2S are presented in the article. The sample was selected from the local zone of destru
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14

Zhai, Huishan, Xiaolei Liu, Peng Wang, Baibiao Huang, and Qianqian Zhang. "Enhanced photocatalytic H 2 production of Mn 0.5 Cd 0.5 S solid solution through loading transition metal sulfides XS (X = Mo, Cu, Pd) cocatalysts." Applied Surface Science 430 (February 2018): 515–22. http://dx.doi.org/10.1016/j.apsusc.2017.08.056.

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15

Ballhaus, C., and C. G. Ryan. "Platinum-group elements in the Merensky reef. I. PGE in solid solution in base metal sulfides and the down-temperature equilibration history of Merensky ores." Contributions to Mineralogy and Petrology 122, no. 3 (1995): 241–51. http://dx.doi.org/10.1007/s004100050124.

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16

Sitte, Jana, Denise M. Akob, Christian Kaufmann, et al. "Microbial Links between Sulfate Reduction and Metal Retention in Uranium- and Heavy Metal-Contaminated Soil." Applied and Environmental Microbiology 76, no. 10 (2010): 3143–52. http://dx.doi.org/10.1128/aem.00051-10.

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ABSTRACT Sulfate-reducing bacteria (SRB) can affect metal mobility either directly by reductive transformation of metal ions, e.g., uranium, into their insoluble forms or indirectly by formation of metal sulfides. This study evaluated in situ and biostimulated activity of SRB in groundwater-influenced soils from a creek bank contaminated with heavy metals and radionuclides within the former uranium mining district of Ronneburg, Germany. In situ activity of SRB, measured by the 35SO4 2− radiotracer method, was restricted to reduced soil horizons with rates of ≤142 ± 20 nmol cm−3 day−1. Concentr
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17

Barnes, Stephen J., Valentina Taranovic, John M. Miller, Glenn Boyce, and Steve Beresford. "Sulfide Emplacement and Migration in the Nova-Bollinger Ni-Cu-Co Deposit, Albany-Fraser Orogen, Western Australia." Economic Geology 115, no. 8 (2020): 1749–76. http://dx.doi.org/10.5382/econgeo.4758.

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Abstract The Nova-Bollinger Ni-Cu sulfide deposit is associated with a small chonolith (tube-shaped) intrusion emplaced at lower crustal depths into granulite facies migmatite gneisses. The deposit comprises disseminated and net-textured ores within the intrusions and a high proportion of massive, semimassive, and breccia exocontact ores within the underlying country rocks. Internally disposed endocontact ores show typical magmatic textures including conventional net texture, leopard net texture characterized by the presence of centimeter-sized clots of olivine and intercumulus phases, and glo
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18

Filimonova, Olga N., Alexander L. Trigub, Dmitriy E. Tonkacheev, et al. "Substitution mechanisms in In-, Au-, and Cu-bearing sphalerites studied by X-ray absorption spectroscopy of synthetic compounds and natural minerals." Mineralogical Magazine 83, no. 03 (2019): 435–51. http://dx.doi.org/10.1180/mgm.2019.10.

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AbstractSphalerite is the main source of In – a ‘critical’ metal widely used in high-tech electronics. In this mineral the concentration of In is commonly correlated directly with Cu content. Here we use X-ray absorption spectroscopy of synthetic compounds and natural crystals in order to investigate the substitution mechanisms in sphalerites where In is present, together with the group 11 metals. All the admixtures (Au, Cu, In) are distributed homogeneously within the sphalerite matrix, but their structural and chemical states are different. In all the samples investigated In3+ replaces Zn in
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19

Ivashchenko, Vasily I. "Rare-Metal (In, Bi, Te, Se, Be) Mineralization of Skarn Ores in the Pitkäranta Mining District, Ladoga Karelia, Russia." Minerals 11, no. 2 (2021): 124. http://dx.doi.org/10.3390/min11020124.

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The results of the study of rare-metal (Bi, Te, Se. Be, In) mineralization of skarn deposits (Sn, Zn) in the Pitkäranta Mining District, genetically related to the Salmi anorthosite-rapakivi granite batholiths of Early Riphean age are reported. Minerals and their chemical composition were identified on the base of optical microscopy as well as electron microanalysis. The diversity of rare-metal ore mineralization (native metals, oxides, and hydroxides, carbonates, tellurides, selenides, sulfides, sulphosalts, borates, and silicates) in Pitkäranta Mining District ores is indicative of considera
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20

Rottier, Bertrand, Andreas Audétat, Peter Koděra, and Jaroslav Lexa. "Origin and Evolution of Magmas in the Porphyry Au-mineralized Javorie Volcano (Central Slovakia): Evidence from Thermobarometry, Melt Inclusions and Sulfide Inclusions." Journal of Petrology 60, no. 12 (2019): 2449–82. http://dx.doi.org/10.1093/petrology/egaa014.

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Abstract The effect of magmatic sulfide precipitation on the potential of magmatic systems to produce porphyry-type ore deposits is still a matter of debate. In particular, we need to know whether magmatic sulfide precipitation has an impact on the Cu and Au content of the exsolving magmatic volatile phases and, by this way, on the Cu/Au ratio of porphyry deposits. The Javorie volcano is a perfect place to explore these questions. First, it hosts several Au-only porphyry-type mineralized occurrences which have among the lowest Cu/Au ratios reported in the literature. Secondly, the geology of t
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21

Melcher, Frank, Sonja Schwabl, Peter Onuk, Thomas Meisel, Thomas Aiglsperger, and Joaquín A. Proenza. "The Haidbach deposit in the Central Tauern Window, Eastern Alps, Austria: a metamorphosed orthomagmatic Ni-Cu-Co-PGE mineralization in the Polymetallic Ore District Venediger Nappe System – Hollersbach Complex." Austrian Journal of Earth Sciences 114, no. 1 (2021): 1–26. http://dx.doi.org/10.17738/ajes.2021.0001.

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Abstract Cu-Ni-Co-PGE mineralization occurs at Haidbachgraben in the Early Palaeozoic, Subpenninic Hollersbach Complex of the Central Tauern Window, Austria. Massive sulfide ore formed from sulfide melt segregated from silicate melt during intrusion of pyroxenite into magmatic rocks formed in an MORB-type environment. Relics of magmatic minerals include chromian spinel and polyphase sulfide droplets composed of pyrrhotite, chalcopyrite and pentlandite preserved in recrystallized pyrite. Both ore and host rocks were multiply deformed and metamorphosed, leading to hornblendite carrying the ore,
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22

Retka, Jacek, Grzegorz Rzepa, Tomasz Bajda, and Lukasz Drewniak. "The Use of Mining Waste Materials for the Treatment of Acid and Alkaline Mine Wastewater." Minerals 10, no. 12 (2020): 1061. http://dx.doi.org/10.3390/min10121061.

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The mining of metal ores generates both liquid and solid wastes, which are increasingly important to manage. In this paper, an attempt was made to use waste rocks produced in the mining of zinc and lead to neutralizing acid mine drainage and alkaline flotation wastewater. Waste rock is a quartz-feldspar rock of hydrothermal origin. It is composed of, besides quartz and potassium feldspar (orthoclase), phyllosilicates (chlorite and mica), and sulfides (chiefly pyrite). To determine its physicochemical parameters and their variability, acid mine water and flotation wastewater were monitored for
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23

Babachenko, A. I., H. A. Kononenko, Zh A. Dementieva, and R. V. Podolskyi. "Comparative researches of the quality indicators of the railway wheels of various methods of manufacture." Metallurgicheskaya i gornorudnaya promyshlennost, no. 1 (2019): 54–61. http://dx.doi.org/10.33101/s001-120019.

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Methodology. To identify the macrostructure of the metal of the wheels, deep hot etching was performed with a 50% aqueous hydrochloric acid solution according to GOST 10243. An assessment of the contamination of the metal of the wheels under study was performed in accordance with GOST 1778. The microstructure was detected by etching in 4% alcoholic nitric acid solution. Tensile tests of steel rims and wheel disks were carried out in accordance with GOST 1497, hardness according to GOST 9012, impact strength was determined according to GOST 9454. The results of mechanical tests were checked for
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24

Karpovich, Z. A., and E. I. Zhimulev. "Experimental Modeling of Diamond Formation Processes in Fe-C-S System at High P-T Parameters." Bulletin of Irkutsk State University. Series Earth Sciences 34 (2020): 67–81. http://dx.doi.org/10.26516/2073-3402.2020.34.67.

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The problem of diamond formation, despite the huge amount of accumulated information, has not been finally resolved. Currently, the most well-established hypothesis is that the diamond will be formed as a result of metasomatosis. According to this theory, the source of carbon were fluids of C-H-O-N-S composition. There are still questions concerning the environment for diamond crystallization. One of the most common inclusions in diamonds from kimberlite tubes are sulfides. They are also represented in diamondiferous xenoliths of peridotite and eclogite from diamondiferous tubes, but their qua
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25

Jugo, P. J., P. A. Candela, and P. M. Piccoli. "Magmatic sulfides and Au:Cu ratios in porphyry deposits: an experimental study of copper and gold partitioning at 850°C, 100 MPa in a haplogranitic melt–pyrrhotite–intermediate solid solution–gold metal assemblage, at gas saturation." Lithos 46, no. 3 (1999): 573–89. http://dx.doi.org/10.1016/s0024-4937(98)00083-8.

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26

Scharrer, Manuel, Katharina Sandritter, Benjamin F. Walter, Udo Neumann, and Gregor Markl. "Formation of native arsenic in hydrothermal base metal deposits and related supergene U6+ enrichment: The Michael vein near Lahr, SW Germany." American Mineralogist 105, no. 5 (2020): 727–44. http://dx.doi.org/10.2138/am-2020-7062.

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Abstract Native arsenic is an occasional ore mineral in some hydrothermal base metal deposits. Its rarity (compared to pyrite, arsenopyrite, galena, sphalerite, or chalcopyrite, for example) is surprising, as arsenic is a common constituent of upper crustal fluids. Hence, the conditions of formation must be quite special to precipitate native arsenic. An ideal location to investigate the formation of native As and to explore the parameters constraining its crystallization is the Michael vein near Lahr, Schwarzwald, southwest (SW) Germany. Here, galena, sphalerite, and native arsenic are the mo
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27

Pamato, M. G., D. Novella, D. E. Jacob, et al. "Protogenetic sulfide inclusions in diamonds date the diamond formation event using Re-Os isotopes." Geology, April 22, 2021. http://dx.doi.org/10.1130/g48651.1.

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Sulfides are the most abundant inclusions in diamonds and a key tool for dating diamond formation via Re-Os isotopic analyses. The manner in which fluids invade the continental lithospheric mantle and the time scale at which they equilibrate with preexisting (protogenetic) sulfides are poorly understood yet essential factors to understanding diamond formation and the validity of isotopic ages. We investigated a suite of sulfide-bearing diamonds from two Canadian cratons to test the robustness of Re-Os in sulfide for dating diamond formation. Single-crystal X-ray diffraction (XRD) allowed deter
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28

Habashi, Fathi. "A Generalized Kinetic Model for Hydrometallurgical Processes." Chemical Product and Process Modeling 2, no. 1 (2007). http://dx.doi.org/10.2202/1934-2659.1047.

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In electrochemical leaching processes the solid must be an electric conductor, e.g., a metal, or a semiconductor, e.g., certain metal sulfides or oxides. Reaction takes place by the transfer of electrons at the solid surface and involves oxidation–reduction processes that take place simultaneously at two different locations not far from each other. At one location, electrons are picked up by a depolarizer, D, in solution, e.g., O2, H+, etc. (the cathodic zone) and at another location metal ions are released in solution (the anodic zone) where they react with reagent C. A single kinetic law der
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Farneth, W. E., N. Herron, and Y. Wang. "Conversion of (R4N+)4[S4M4(SPh)16]4− Molecular Solids to Bulk Metal Sulfides." MRS Proceedings 272 (1992). http://dx.doi.org/10.1557/proc-272-47.

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ABSTRACTIn this paper we report on the mechanism of the solid state conversion of a series of IINI precursors of general formula (R4N+)4[S4M4(SPh)16]4− (R=Me, Et; M=Cd, Zn) to the bulk metal sulfide structure. This family of cluster compounds was first reported by Dance et al [1]. On heating these solids in vacuum or inert atmosphere, we find that they convert to the corresponding extended metal sulfide lattice in two discrete reaction steps. The overall reaction appears to be general, but there are interesting differences in the rates and mechanistic details as R and M are varied. The first s
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Leube, Bernhard T., Clara Robert, Dominique Foix, et al. "Activation of anionic redox in d0 transition metal chalcogenides by anion doping." Nature Communications 12, no. 1 (2021). http://dx.doi.org/10.1038/s41467-021-25760-8.

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AbstractExpanding the chemical space for designing novel anionic redox materials from oxides to sulfides has enabled to better apprehend fundamental aspects dealing with cationic-anionic relative band positioning. Pursuing with chalcogenides, but deviating from cationic substitution, we here present another twist to our band positioning strategy that relies on mixed ligands with the synthesis of the Li2TiS3-xSex solid solution series. Through the series the electrochemical activity displays a bell shape variation that peaks at 260 mAh/g for the composition x = 0.6 with barely no capacity for t
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