gold in sulfides

Feb 15 2020 · The sulfides contain some galena lead sulfide but not enough lead to serve as collector for a full fire assay on that material alone so I will add some other galena from another source which also contains some good silver but very little gold and some Litharge plus a bit of charcoal to help reduce the litharge

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  • Gold in Minerals and the Composition of Native Gold

    Gold in Minerals and the Composition of Native Gold

    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 telluridesulfide mineral nagyagite ii known The nonmetallic minerals carry the least gold and the lightcolored minerals generally contain less gold

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  • Divining gold in seafloor polymetallic massive sulfide

    Divining gold in seafloor polymetallic massive sulfide

    Jun 29 2019 · Hydrothermal fluids on the modern seafloor are important carriers of base and precious metals in a wide range of volcanic and tectonic settings The concentrations and distribution especially of gold and silver in associated seafloor massive sulfide SMS deposits are strongly influenced by variable source rocks fluid chemistry and precipitation mechanisms

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  • Guides For Highsulfide Gold Processing

    Guides For Highsulfide Gold Processing

    High sulfide gold ore refers to a certain gold ore with 20 30 of gold wrapped by sulfide mainly pyrite Because most of the gold in highsulfide gold ore exists in the form of sulfideencapsulated gold when using direct leaching process the consumption of gold leaching agent and cost of gold leaching production will increase and gold processing efficiency is not good

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  • Solid solution of gold in sulfides Economic Geology

    Solid solution of gold in sulfides Economic Geology

    With reference to a paper by K J Callow and B W Worley Jr on telluride minerals at the Acupan mine in the Phillippines it is pointed out that retention of gold in sulfides after cyanidation is not positive evidence for solid solution as extremely fine particle size may produce the same result

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  • Volcanogenic Gold in the Massive Sulfide Environment

    Volcanogenic Gold in the Massive Sulfide Environment

    Volcanogenic massive sulfide deposits contain variable amounts of gold from an average production grade of about 1 gt to more than 10 gt in some deposits Fig 1 They include conventional base metal massive sulfides with accessory gold as well as some deposits in which gold is a primary commodity

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  • Distribution of Gold and Sulfides

    Distribution of Gold and Sulfides

    Table of ContentsControls of Gold and Sulfide Distribution at Lupin NWTRegional SettingGeologyDeformationPlutonismGeology of the

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  • Rcovery of gold in pyritic ores Mine

    Rcovery of gold in pyritic ores Mine

    Recovery of gold in sulfide ores has fallen into several categories First is froth flotation and second is cyanidation of the ores Using cyanide to recover gold from sulfide ores generally results in 30 to 35 recovery and the best I have heard of is around 50 recovery The fine coating of a iron compound definitely appears to be a key

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  • Process to Recover Gold from Sulfide Ores GOLD

    Process to Recover Gold from Sulfide Ores GOLD

    May 27 2016 · I have assays on the gold and silver alone after just roasting 2254OZ silver and 56 OZ of gold per ton Right now the only samples I have are about a 5 gal bucket full that has been washed to remove organics so I am sure a lot of the sulphides are washed away it appers to be quite metalic

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  • Sulfides Gold Recovery Methods ICMJs Mining Journal

    Sulfides Gold Recovery Methods ICMJs Mining Journal

    Sep 04 2015 · We have had great sucess recovering gold from sulfides with out thiourea based solution Our recovery rate is usually 94 to 96 The key to recovery with sulfides is the grind size of the ore while leaching to make sure that your leach solution can make Co tact with the precious metal

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  • Black sand pyrite sulfides and gold Gold Refining

    Black sand pyrite sulfides and gold Gold Refining

    Nov 07 2017 · But the values in sulfides ranging from a few ppm to in exceptional cases over 1800ppm and the confusing ppm calculations ive seen over gold content im interested in exploring the sulfides further Is it generally a waste of time processing sulfides and is the usual process to go to the oxide via a roast then smelt or chemically extract at that

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  • Gold and Silver Minerals in Sulfide Ore

    Gold and Silver Minerals in Sulfide Ore

    AbstractGold 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 classes Compared to gold in the class

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  • Guides For Highsulfide Gold Processing

    Guides For Highsulfide Gold Processing

    High sulfide gold ore refers to a certain gold ore with 20 30 of gold wrapped by sulfide mainly pyrite Because most of the gold in highsulfide gold ore exists in the form of sulfideencapsulated gold when using direct leaching process the consumption of gold leaching agent and cost of gold leaching production will increase and gold processing efficiency is not good

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  • USGS Geological Survey Bulletin 1286 Goldbearing Veins

    USGS Geological Survey Bulletin 1286 Goldbearing Veins

    Mar 28 2006 · Visible gold occurs in small irregular grains and wires in quartz without associated sulfides fig 7A and in pyrite both in the veins and in the altered schist in shear zones even where quartz is absent fig 7B Scattered grains are also found in the sulfidebearing schist adjacent to

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  • Sulfides Gold Recovery Methods ICMJs Mining Journal

    Sulfides Gold Recovery Methods ICMJs Mining Journal

    Sep 04 2015 · We have had great sucess recovering gold from sulfides with out thiourea based solution Our recovery rate is usually 94 to 96 The key to recovery with sulfides is the grind size of the ore while leaching to make sure that your leach solution can make Co tact with the precious metal

    read more
  • Smelting and Roasting Ores to recover gold silver and

    Smelting and Roasting Ores to recover gold silver and

    Treating high sulfide ore is a difficult proposition and in the article below Ill take a look at all of the best known possibilities for getting the gold and other valuable minerals out of those difficult rebellious ores and producing a clean saleable bullion product

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  • Environmental Impacts of Gold Mining Brilliant Earth

    Environmental Impacts of Gold Mining Brilliant Earth

    Iron sulfides often called “fool’s gold” in the rock can react with oxygen to form sulfuric acid Acidic water draining from mine sites can be 20 to 300 times more concentrated than acid rain and it

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  • Gold Distribution in the Mobrun VolcanicAssociated

    Gold Distribution in the Mobrun VolcanicAssociated

    sive sulfide deposit in relation to various facies ofmin eralization In addition we discuss the possibility that gold was introduced syngenetically and was sub sequently remobilized during metamorphism and tectonic deformation The Mobrun mine is a good location to carry out a study of the controls on gold mineralization in vol

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