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Sulphide Ores
Published in Earle A. Ripley, E. Robert Redmann, Adèle A. Crowder, Tara C. Ariano, Catherine A. Corrigan, Robert J. Farmer, L. Moira Jackson, Environmental Effects of Mining, 2018
A. Ripley Earle, Robert E. Redmann, Adèle A. Crowder, Tara C. Ariano, Catherine A. Corrigan, Robert J. Farmer, Earle A. Ripley, E. Robert Redmann, Adèle A. Crowder, Tara C. Ariano, Catherine A. Corrigan, Robert J. Farmer, L. Moira Jackson
As well as in sulphides, antimony also occurs in various sulphosalt minerals of varying composition, such as tetrahedrite, with silver replacing copper and arsenic replacing antimony. Deposits of antimony are found in the Yukon Territory, British Columbia, Québec, and the Atlantic provinces (Lymbumer 1973). The main ore, stibnite, is frequently associated with lead ores and may also contain small amounts of gold and silver. North America’s only primary antimony mine, at Lake George, New Brunswick, was closed at the beginning of 1990 because of unfavorable market conditions. As a result, almost all of Canada’s production in 1992 came as a by-product of the smelting of lead ores at Trail, British Columbia, and Belledune, New Brunswick (EMR 1993a; NRCan 1994). The Trail operation produces antimonial lead, which contains 10%–21% antimony and 1% arsenic, by reduction of silver refinery dust and slag; Belledune produces antimony slag, which may be further refined on-site or by a secondary lead smelter to produce antimonial lead (EMR 1992).
Ore potential of acidic rocks of the Achean Kolmozero-Voronya zone, NE Baltic Shield
Published in Adam Piestrzyński, Mineral Deposits at the Beginning of the 21st Century, 2001
The Pellapahk Mo-Cu ore field is situated in the NE slope of Pellapahk hill. It forms a system of linear stockworks with 5.0 km length and 800 – 1000 m width of the ore zone (Gavrilenko & Mitrofanov 1997; Gavrilenko & Dain 1999). The linear ore zones were traced, to a depth of 250 metres. Quartz-muscovite schists with 2 – 10% of sulfide mineralization are the main ore-bearing rocks. The following minerals (according to decreasing content) were found: pyrite, chalcopyrite, sphalerite, molybdenite, galena, tetrahedrite, pyrrhotite, bornite, cubanite, covellite, native bismuth, tennantite, gudmundite, freibergite, pentlandite, covellite, lollingite, native copper. Molybdenite is concentrated in quartz metasomatites and quartz veinlets. The age of mineralization (2.6 – 2.7 Ma) was determined with Pb-Pb method (sphalerite and chalcopyrite indicate that the Pellapahk deposit is one of the most ancient deposits of this type.
Beneficiation of gold sulphide ores from South Sardinia, Italy
Published in Gülhan Özbayoğlu, Çetin Hoşten, M. Ümit Atalay, Cahit Hiçyılmaz, A. İhsan Arol, Mineral Processing on the Verge of the 21st Century, 2017
M. Ghiani, A. Serci, R. Peretti, A. Zucca
Mineralogic and petrographic analyses indicated that the gold, of sizes ranging from 10 to 200 μm, is generally associated with the enargite and to a minor extent with the pyrite. Minor amounts of tetrahedrite, tennantite and calaverite were also detected. The chemical composition of the major ore constituents is shown in Table 1.
The Novel Lixiviants for Maximizing Antimony Extraction from Tetrahedrite-Rich Concentrate: Mechanism and Kinetic Studies
Published in Mineral Processing and Extractive Metallurgy Review, 2022
Sajjad Aghazadeh, Hadi Abdollahi, Mahdi Gharabaghi, Mirsaleh Mirmohammadi
Tetrahedrite is of paramount importance due to its relatively nontoxic, earth‐abundant and strategic elements. Minerals of tetrahedrite group are the most prevalent complex sulfides named as sulphosalt family (Friese et al. 2008). Tetrahedrite can be represented by the chemical formula Cu12Sb4S13. A whole range of elements may replace Cu in its structure with different composition weights depending on formation origin (Barbier et al. 2015; Ukasik and Havlik 2005). Among different characteristics of tetrahedrite mineral, there are unique features such as thermoelectric properties (Barbier et al. 2015; Chetty et al. 2015; Lu and Morelli 2013; Suekuni et al. 2013), magnetic behavior (Di Benedetto et al. 2005), solar adsorption characteristics (Heo et al. 2015) nano-fiber and nano-flakes synthesis properties (An et al. 2003), which have been the main focus of recent studies. Moreover, antimony obtained from Sb-bearing minerals such as tetrahedrite could be used as metal adsorbent such as SiSb (Borai et al. 2012).
Rejection of antimony and bismuth in sulphide flotation – a literature review
Published in Mineral Processing and Extractive Metallurgy, 2021
Leanne Kathleen Smith, Warren John Bruckard, Graham Jeffrey Sparrow
Tetrahedrite and tennantite are end members of a solid solution series in which antimony and arsenic replace each other in the mineral structure. The tetrahedrite-tennantite series has the more general formula of (Cu,Ag)10(Fe,Cu)2(Sb,As,Bi,Te)4S13. Tetrahedrite has sub-chonchoidal fracture, is flint grey to black in colour, with a Moh hardness of 3–4.5 and a density of 5.0 g.cm−3.