copper gold pyrrhotite

GOLD at the COPPER KING Gold-Copper Mine near Cheyenne, Wyoming: The ...

The Copper King is a deeply dissected Proterozoic age copper-gold porphyry deposit with disseminated sulfides and stockworks surrounded by propylitic and potassic alteration zones. Fourteen samples collected by Jamison (1912b) varied from 0.22% to 2.43% Cu, 0.06 to 0.42 opt Au, and 0.4 to 0.8 opt Ag. ... minor bornite, pyrrhotite and native ...

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Projects - DGO Gold LIMITED

DeGrussa style copper/gold mineralisation in units of the Yerrida Basin whuich are stratigraphically equivalent to the units which host DeGrussa in the adjacent Bryah Basin; and; ... Conversion of gold-bearing sedimentary pyrite to pyrrhotite observed in drilling, indicates the release of the gold and arsenic to a metamorphic fluid which has ...

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Australian Vanadium Welcomes Nickel-Copper-PGE And Visual Gold Results ...

Home News Australian Vanadium Welcomes Nickel-Copper-PGE And Visual Gold Results From Coates Project. ... 10 metres at 0.13% copper, 493 parts per million (ppm) nickel, 39 parts per billion (ppb) palladium and 21 ppb platinum from 64 metres including 7 metres at 0.14% copper, 544 ppm nickel, 43 ppb palladium and 23 ppb platinum from 67 metres ...

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Corner Bay - Doré Copper Mining Corp

Location55 km by road south of Chibougamau, QC Ownership100% Dore Copper HistoryDevelopment: ramp to 115 m; bulk sample of ~36k tonnes averaging 2.48% Cu and 0.44 g/t Au CommoditiesCopper and gold Current StatusStarting Feasibility Study Mineral Resources (2022)Indicated: 2.68 Mt @ 2.66% Cu and 0.26 g/t Au, containing 157 M lbs of copper and 22,000

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Southmore Copper-Gold Project in BC's Golden Triangle Emerging as ...

Jun 3, 2022The 50 square kilometre Southmore Project is located in BC's Golden Triangle, in the vicinity of several large porphyry deposits including Galore Creek (Teck - Newmont), Schaft Creek (Teck - Copper...

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Coast Copper Makes New Copper-Gold Discovery at Empire: 7.18 g/t Gold ...

vancouver, bc, feb. 1, 2022/cnw/ - coast copper corp. ("coast copper" or the "company") (tsxv:coco) announces assay results for the second batch of samples from its initial 19 drillhole (2,346...

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Mountain Boy Minerals Ltd. | News

The westernmost skarn is characterized by semi-massive lenses of pyrrhotite. The Dundee skarns are garnet-rich exoskarns that replace limestone: they differ from many other skarns in the district in being locally pyrrhotite-rich. ... The Telegraph project has a similar geological setting to major gold and copper-gold deposits in the Golden ...

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Geology, mineralogy, and fluids inclusion studies in Shadan copper ...

The paragenesis in veins and veinlets includes quartz, pyrite, chalcopyrite, bornite, chalcocite, pyrrhotite, magnetite, hematite and covellite, gold, malachite and iron-hydroxides. Gold grains are between 1 to150μm in diameter commonly occurring within the quartz and in some places occur in <10µm diameter within oxidized pyrites.

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Ximen Mining's April Drill Program Targeting Bud Elk Copper Gold ...

Bud-Elk Copper Gold Property - Malachite stained subcrop at Gem showing. Since acquiring the property, Ximen conducted check rock sampling in 2020, and soil geochemistry and airborne geophysics in 2021. Grab samples from the Buckhorn retuned values ranging from 0.14% to greater than 1% copper, and from 0.09 to 2.7 grams per tonne gold.

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Study on Shaxi porphyry copper-gold deposit in Anhui: gold ...

copper-gold deposit both theoretically anti practically in the lower reaches of Yangtze'region. Key words: EPMA; PIXE; gold occu'rrence; Shaxi porphyry Cu-Au deposit; Anhui ... Po--Pyrrhotite Table 1 Chemical compositions of pyrite in Shaxi porphyry Cu-Au deposit Chemical composition Fe S Co Ni Cu Zn As Se Ag Sb Au Total 1 46.05 52.38 0.11 0.05 ...

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Ivanhoe Electric Subsidiary Cordoba Minerals Reports Intersecting ...

The initial drill assays confirm not only the wide higher grade domains of chalcopyrite-pyrrhotite copper-gold carbonate replacement mineralization within the mineral resource block model but also the presence of multiple late-mineral CBM veins (Figures 2 to 5). CBM veins offer significant upside potential for contained gold in the Alacran Deposit

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Cordoba Minerals Intersects Multiple High-Grade Gold-Copper Veins ...

The initial drill assays confirm not only the wide higher grade domains of chalcopyrite-pyrrhotite copper-gold carbonate replacement mineralization within the mineral resource block model but also...

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Tombola Gold Ltd (TBA.AX) Drilling at Little Duke Intersects Copper and ...

The mineralisation is interpreted to be an iron-sulphide (pyrrhotite-dominant) copper gold (ISCG) style with IOCG (magnetite) components, although petrography work is underway to confirm this....

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copper sulphate gold flotation - Panola Mining Machinery - Filmair

The role of copper sulphate in the flotation of pyrite has been studied. A survey of a number of pyrite flotation plants using copper sulphate showed that in correct dosages it was able to increase both grades and recoveries. This was confirmed in More Details Optimization and mechanism of gold-bearing sulfide flotation

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Alicanto Minerals (ASX:AQI) hits copper at Swedish project

Additionally, up to 3.1 per cent copper was intersected in historical workings. Recent drilling has intersected 2.85 metres of massive pyroxene skarn with chalcopyrite and pyrrhotite, including 1.02 metres of 5 per cent to 10 per cent sulphide from 69.95 metres.

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Graduate School - University of Queensland

The objective of this project is to make the surface of pyrrhotite hydrophilic by biopolymers so that it can be rejected in copper and gold flotation. Two types of biopolymers, wheat starch and lignosulphonate, will be examined in this project.

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American Pacific Mining Reports Samples up to 29 g/t Gold

Six of the samples are described as skarn with disseminations of pyrite, pyrrhotite and chalcopyrite; these samples returned excellent values with up to 29 g/t Au, 1.52% Cu and 44.80 g/t Ag ...

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CiteSeerX — Citation Query A study of the Strathcona mine and its ...

The same process was presumably significant in controlling the gold distribution. Some chalcopyrite probably exsolved from the pyrrhotite solid soluton at sub-solidus temperatures, but the direct precipitation.of chalcopyrite from a copper-rich magmatic liquid is also feasible.

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MUNDIYAWAS-KHERA COPPER- GOLD-SILVER DEPOSIT, THANAGAZI TEHSIL ... - Mines

Sulphide mineralisation: Chalcopyrite, pyrrhotite, arsenopyrite, pyrite, galena, pentlandite and cubanite Nature of mineralisation: Disseminations, stringers, massive and vein Width of lode Grade Copper: 2.0 m to 46.20 m 0.2% to 14.35% Gold: 1.0 m to 5.50 m 0.5 g/t to 86.0 g/t Silver: 1.0 m to 5.50 m 5 g/t to 70 g/t

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(PDF) Reduced porphyry copper-gold deposits: A new ... - ResearchGate

For example, some porphyry copper and gold deposits exhibit evidence for a strong association with highly reducing components such as enriched hypogene pyrrhotite and CH 4 fluid inclusions,...

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NICO Cobalt-Gold-Bismuth-Copper Project, Canada

The NICO cobalt-gold-bismuth-copper project is a high-grade metal project located in the Northwest Territories of Canada. Fortune Minerals is developing the project with an estimated investment of C$589m ($445.6m). The NICO mine is expected to process ore at a throughput capacity of 1.7 million tons per year (Mtpa), through its estimated mine ...

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Dreadnought Resources makes high-grade discovery at Tarraji-Yampi ...

Perth-based explorer Dreadnought Resources (ASX: DRE) has made a high-grade massive sulphide, supergene and oxide discovery at the Orion target within the Tarraji-Yampi nickel-copper-gold project in Western Australia's West Kimberley region. Assay results from the first six mineralised follow-up holes drilled at the prospect have confirmed a mix of copper (up to 7.4%), silver (192 grams per ...

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Cordoba Minerals | Copper Gold Mining Investment Opportunities for ...

Aug 8, 2022The initial drill assays confirm not only the wide higher grade domains of chalcopyrite-pyrrhotite copper-gold carbonate replacement mineralization within the mineral resource block model but also the presence of multiple late-mineral CBM veins (Figures 2 to 5). CBM veins offer significant upside for contained gold in the Alacran Deposit

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Thorn Gold-Copper-Silver Project - Brixton Metals

Copper-gold-silver-molybdenum porphyry mineralization at the Camp Creek Target has been the focus of drilling by Brixton Metals since acquisition in 2009. The target area is approximately 1km by 2km, and covers several different mineralized zones, including Oban, Talisker and Glenfiddich. The porphyry is blind and it wasn't until 2019 that ...

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C3 Metals Intersects 48m @ 1.24% Copper and 0.43 g/t Gold

The higher ratios of pyrite and pyrrhotite to chalcopyrite indicate an environment with low- to medium-temperatures, and hence the Company is planning to test below this pyritic zone, to target ...

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Gold | Energy & Mining

The gold generally occurs in the native state associated with sulfide minerals, particularly pyrite (FeS2), but also pyrrhotite (Fe1-xS), chalcopyrite (CuFeS2), arsenopyrite (FeAsS), sphalerite (ZnS) and galena (PbS) ... The Blue Rose copper-gold prospect, located 2-3 km north of the Anabama Granite, is hosted by Burra Group dolomitic and ...

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Iron oxide copper gold ore deposits - Wikipedia

Iron oxide copper gold (IOCG) deposits are considered to be metasomatic expressions of large crustal-scale alteration events driven by intrusive activity. The deposit type was first recognised by discovery and study of the supergiant Olympic Dam copper-gold-uranium deposit ( Olympic Dam mine ), and South American examples.

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Star Copper-Gold Porphyry - CAVU - CAVU - Energy Metals

500 m x 500 m copper & gold in soil and IP anomaly Open in all directions Confirmed by surface sampling Pyrrhotite Creek Linear 1800 - 750 m altered and mineralized corridor High copper in soil anomalies on margin of 1.2 km 2 IP anomaly Historical hand trenching results of 130 m @ 0.40 % Cu Creek showing Copper Creek

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Pyrrhotite - an overview | ScienceDirect Topics

Pyrrhotite is an iron sulfide (Fen S n+1) mineral with brass-yellow to copper-red color ( Fig. 1.44 ). The crystal system is monoclinic with hexagonal polytype, and it has no cleavage. The mineral depicts uneven fracture, metallic luster, and dark green to black streak. The specific gravity is around 4.6 and hardness is between 3.5 and 4.5.

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Coast Copper Makes New Copper-Gold Discovery at Empire: 7.18 g/t Gold ...

Coast Copper Corp. ("Coast Copper" or the "Company") (TSXV: COCO) announces assay results for the second batch of samples from its initial 19 drillhole (2,346 metre ("m")) core drilling program completed in December 2021 on its optioned Empire Mine Property (the "Property"); see news releases dated December 20, 2021 and January 25, 2022. Results reported in this news release are from two ...

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Hammer Metals makes new copper-gold discovery at Mount Isa East joint ...

Also returned was an intersection of 32m at 1.04% copper and 0.25g/t gold from 64m including 6m at 2.38% copper and 1.45g/t gold from 91m. Drilling at Shadow intersected 3m at 0.43% copper and 0.14g/t gold from 140m, while Even Steven South returned 4m at 0.23% copper and 0.14g/t gold from 120m. "Fantastic start"

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Porphyry Cu deposits containing pyrrhotite - USGS

Mineral Resources; Online Spatial Data; Porphyry Cu deposits containing pyrrhotite. Name of deposit Deposit type State or Province Country; Paramillos Norte: 17: Mendoza

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News Releases | Romios Gold Resources Inc.

It has extensive claim holdings covering porphyry copper-gold prospects in the "Golden Triangle" of British Columbia as well as a 100% interest in the Lundmark-Akow Lake property in Ontario, the La Corne molybdenum property in Quebec and the Scossa gold property in Nevada. The company also retains a 2% NSR on the Hislop gold property in Ontario.

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Prince William Sound Region Gold Production - Western Mining History

The copper deposits of Prince William Sound, which have yielded moderate amounts of gold, occur as impregnations or replacement bodies usually along zones of shearing in the country rock. Chalcopyrite and pyrrhotite are ubiquitous, pyrite is common, and galena, sphalerite, bornite, chalcocite, native copper, cuprite, and malachite are present ...

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Cordoba Minerals Intersects Multiple High-Grade Gold-Copper ... - Benzinga

The initial drill assays confirm not only the wide higher grade domains of chalcopyrite-pyrrhotite copper-gold carbonate replacement mineralization within the mineral resource block model but also...

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Gold and silver metallurgist - Home

Gold with Pyrite, Pyrrhotite, Marcasite and Arsenopyrite 4/17/2016 In this ore classification, the gold occurs both in the free state and disseminated in the sulfides. (Pyrite is found to some degree in most of the world's gold deposits. ) Sulfides tend to decompose in cyanide solutions.

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C3 Metals Intersects 48m @ 1.24% Copper and 0.43 g/t Gold

Downhole from the breccia is equigranular diorite cut by millimetre to metre-scale pyrrhotite veins with chalcopyrite along vein selvages. The best assays include 43.5m @ 0.32% copper (from 260.0m) and 51.65m @ 0.12% Cu (from 313.8m). Figure 3 shows the interpreted cross section through JAS4350-01 and 02.

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Cyanidation of a pyrrhotite-bearing gold ore - ResearchGate

The Musselwhite Mine in Canada processes a free milling gold ore at 5.5-5.8g/t Au and 4.2% pyrrhotite. A laboratory investigation was conducted to improve cyanidation. The pyrrhotite was ...

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American Pacific Mining Reports Samples up to 29 g/t Gold and 1.52% ...

Six of the samples are described as skarn with disseminations of pyrite, pyrrhotite and chalcopyrite; these samples returned excellent values with up to 29 g/t Au, 1.52% Cu and 44.80 g/t Ag. "The Madison Project continues to deliver high grade gold and copper samples," states Eric Saderholm, President of American Pacific.

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Does pyrrhotite contain gold? - blog.atrium.youramys

What type of mineral is pyrrhotite? Pyrrhotite is a mineral species composed of iron sulfide and is of a bronze yellow color, blackening when exposed to air. When it crystallizes in blades, pyrrhotite can produce cracks in the concrete structures. Is there gold in chalcopyrite?

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