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2 天前 32 Sulfide minerals are the source of various precious metals most notably gold silver and platinum They also are the ore minerals of most metals used by industry as for example antimony bismuth copper lead nickel and zincSulfide Ores Types enspenspThere are two main copper ore types of interest copper oxide ores and copper sulfide ores Both ore types can be economically mined however the most common source of copper ore is the sulfide Send Email email protected
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Very rarely found as native meteoric iron it is most commonly smelted from its oxide and sulfide or Of the metals iron is produced in the largest tonnage Far more susceptible to corrosion than the other seven metals it must be painted alloyed or coated if it is to resist the effects of air and water for more than a few yearsThese mines have now closed and today the biggest copper mines are in Chile Escondida mine and Indonesia Grasberg mine These produce many millions of tonnes of copper ore per year The main ores of copper are sulfides and oxid
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The ore breccias and sandstones are often intercalated with thin banded sulfide layers at the flanks of clastic ore bodi Banded sulfides could frequently be recognized as intercalated altered clastic sulfide layers on the basis of the load casts which are typical of sulfide turbidites but are not characteristic of fallout settled sulfide particles 17 19 81 even in metamorphosed Sulphide is an alternative form of sulfide As nouns the difference between sulphide and sulfide is that sulphide is while sulfide is chemistry any compound of sulfur and a metal or other electropositive element or group Noun A kind of clear marble with a small
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The principal ore of antimony stibnite is antimony sulfide Its name comes from the Latin stibium Lead gray to silvery gray in color it often develops a black iridescent tarnish on exposure to light It normally occurs as elongated prismatic crystals that may beIn this way for example alteration of ore bodies containing the major economic copper mineral a copper iron sulfide chalcopyrite often occur to form an overlying copper sulfide chalcocite zone and a cap containing oxidized copper minerals and native copper
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This KS3 education resource looks at copper mining extraction and pyroprocessing of sulfide or Processing Stages Stage 1 Crushing and grinding The ore from the mine contains about 2 copper To get at the copper the first stage is crushing in huge22/5/ 32 The first mineral group with no oxygen gives us pyrite marcasite galena sphalerite cinnabar and arsenopyrite
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Sulfide ore from Austin that didn’t contain at least 70 ounces per ton of silver had to go out on the dumps because it was unprofitable to ship to the mill Calaverite Gold Telluride This sad story was repeated all over the Western US and actually all across the worldMolybdenum sulfide is the principal ore mineral to obtain molybdenum a metal commonly used in alloys like stainless steel This sulfide has a dark gray metallic appearance and is very soft which
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Acanthite is a form of silver sulfide with the chemical formula Ag2S It crystallizes inside the monoclinic gadget and is the solid form of silver sulfide under 173 C 343 F A silver sulfide it is the maximum important ore of silver It additionally happens in huge form Sulfide ore from Austin that didn’t contain at least 70 ounces per ton of silver had to go out on the dumps because it was unprofitable to ship to the mill Calaverite Gold Telluride This sad story was repeated all over the Western US and actually all across the world
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According to USGS documents this ore body is also likely to include sulfide ore deposits This section of the ore body runs south of Hwy 77 from southwest of Mellen east to Upson Click here to see a map showing the low grade iron ore deposit The portion of the iron ore body controlled by Gogebic Taconite shown in light blue extends across eastern Ashland County and western Iron County Nickel sulfide ores are processed by heap leaching in Sotkama eastern Finland Talvivaara The process entails the following a open pit mining of 02 Ni 05 Zn 01 Cu and 002 Co sulfide ore b four stage crushing c rotary kiln agglomeration
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Sulfide Mining in Michigan s UP Sweetwater Visions 2 Prove that a mining operation that operated in a sulfide ore body and has been closed for 10 years has not polluted the ground and surface waters with AMD and other heavy metals We ask you to join within a sulfide ore containing approximately 20 g/t gold 2 arsenopyrile and 1 pyrile occurred as both microscopic gold and submicroscopic gold Microscopic gold was determined to be native gold with 32 silver and 82 mercury Gold was
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The native elements contain the most gold followed by the sulfide minerals Several gold tellurides are known but no gold selenides have been reported and only one sulfide the telluride sulfide mineral nagyagite ii known The nonmetallic mineralsMicrophotograph of a massive gold bearing sulfide ore Native gold Au closely intergrown with chalcopyrite Cp and pyrrhotite Pyh Note the very high reflectance of gold and its softness displayed by deep scratch Photograph taken under reflected Sample
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Microphotograph of a massive gold bearing sulfide ore Native gold Au closely intergrown with chalcopyrite Cp and pyrrhotite Pyh Note the very high reflectance of gold and its softness displayed by deep scratch Photograph taken under reflected Sample Abstract—Gold and silver are capable of forming stable natural compounds with different elements For gold 36 minerals are known 10 in the class “Native metals intermetallic compounds” and 26 in the class “Sulfides selenides tellurides arsenides antimonides bismuthides ” For silver 194 minerals are registered in the MMA presented in 8 class Compared to gold in the class
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2 天前 32 Sulfide minerals are the source of various precious metals most notably gold silver and platinum They also are the ore minerals of most metals used by industry as for example antimony bismuth copper lead nickel and zincSulfide ore from Austin that didn’t contain at least 70 ounces per ton of silver had to go out on the dumps because it was unprofitable to ship to the mill Calaverite Gold Telluride This sad story was repeated all over the Western US and actually all across the world
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1/5/ 32 Bioleaching has been widely applied to recover sulfide minerals however little is known about the bioleaching behavior and mechanism of mixed oxide sulfide copper ore with high oxidative ratio The leaching efficiency of artificial indigenous and exogenous microbial communities on a mixed oxide sulfide copper ore with and without energy substrate was investigated Chalcopyrite is major copper ore Found in ore deposits also in veins Graphite native element C Hexagonal crystal structure most common sulfide in the crust Isometric crystal system Hardness of 6 65 may show penetration or contact twinning fools gold
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