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Copper sulfide minerals mainly include chalcopyrite, bornite, chalcocite, and covelline, among which chalcopyrite is the most common mineral. Copper sulfide minerals are often associated with precious metals and rare metals and thus have high value in comprehensive recovery. ... Leaching of low-grade copper ore can be done in dump leaching or ...
Chalcopyrite is a mineral and ore of copper. Its chemical composition is CuFeS2, meaning it contains copper (Cu), iron (Fe), and sulfur (S). Chalcopyrite is one of the most important copper ores and is widely distributed …
In some copper ore deposits, primary copper minerals like chalcopyrite (CuFeS2) can undergo weathering and alteration near the surface. As a result, copper sulfides in the primary minerals can be oxidized and leached, leaving behind secondary minerals like covellite. ... Common mineral associations include chalcopyrite, bornite, chalcocite ...
Principal sulfidic ores are chalcocite (Cu 2 S) and chalcopyrite (CuFeS 2, yellow copper ore), whereas cuprite is the major oxidic ore (Cu 2 ... up to 10 m wide, containing pyrite, galena, sphalerite, chalcopyrite, bornite, chalcocite, covellite, goethite and native gold have been found in volcanic rocks in northern Lesbos (Kontis, Kelepertsis ...
1. Introduction. The Nussir copper deposit is a sedimentary-hosted copper deposit located in the Kvalsund Municipality, Finnmark County, Norway, stretching from Repparfjorden in the east to the western part of the Nussir …
1. The Importance of Chalcocite. Chalcocite is an economically important mineral of copper. Crystallographic, trace element, mineral assemblage, and textural observations and measurements have been used to understand the origin of this mineral [1 – 3].Models regarding the genesis of chalcocite vary substantially, with conditions ranging from the highest …
There are two basic types of copper ores: sulfide ores and oxide ores. Each type of ore requires different extractive and processing techniques. Sulfide ores include: bornite, chalcocite, and chalcopyrite. Oxide ores include: malachite. azurite and chrysocolla.
The sulfide ores include bornite, chalcocite, covellite, and chalcopyrite, while the oxide ores consist of malachite, azurite, and cuprite. ... Application of geometallurgical modelling to mine planning in a copper-gold mining operation for improving ore quality and mineral processing efficiency. The Journal of African Institute of Mining and ...
Bornite forms as a primary hydrothermal precipitate or a later supergene replacement mineral. It occurs with other copper minerals such as covellite, malachite and azurite. It is marked by its intense purple to blue iridescence on weathered surfaces. Other minerals, especially sulfides and oxides, are also iridescent and are mistaken for bornite. This may well be the case for several …
Abstract. Extraction of copper from sufidic ores, either by pyrometallurgy or hydrometallurgy, has various limitations. In this study, a solvometallurgical process for the extraction of copper from sulfidic ore minerals (chalcopyrite, bornite, chalcocite and digenite) was developed by using an organic lixiviant (FeCl 3 as oxidizing agent and ethylene glycol (EG) as …
Chalcopyrite, copper pyrite Cu 2 FeS 2 or Cu 2 SFe 2 S 3. Bornite, Bornite, a variegated copper ore Cu5FeS4. A primary copper mineral. Chalcocite, copper luster Cu 2 S. Covellite CuS. Both minerals are secondary sulfides that formed …
An important copper ore, typically found as massive or disseminated metallic grains and patches in sulphide ore deposits; ... Laney, F.B. (1911) The relation of bornite and chalcocite in the copper ores of the Virgilina district of North …
Copper sulfide ore, which accounts for 80% of the copper resource, is the major source for the metallic copper [1]. The major copper sulfide ores contain chalcopyrite (CuFeS 2), bornite (Cu 5 FeS 4), covellite (CuS), and chalcocite (Cu 2 S). The concentrates of copper from sulfides ores are generally performed by flotation and then processed by ...
The global market has announced copper as a modern energy metal and finds its extensive utilization in the construction industry, electrical wiring, power transmission lines, alloying, anticorrosive coating, heat exchangers, refrigeration tubing, etc. Copper ore is primarily beneficiated from sulphide mineral deposits. Due to high-grade copper sulphide deposit …
Secondary Cu-sulfides such as bornite, chalcocite, and covellite are important as they occur in a variety of ore deposit types e.g. iron oxide–copper–gold (IOCG) deposits of Olympic Dam, Prominent Hill, South Australia, Jalal-Abad deposit, Iran (Skirrow et al., 2002, Skirrow and Davidson, 2007, Cook et al., 2011, Pirajno et al., 2012 ...
Chalcopyrite is an important ore of copper found in a wide range of hydrothermal environments. It is often associated with sphalerite and galena. It oxidizes to form copper minerals such as malachite, azurite, cuprite and tenorite. Copper liberated from the breakdown of chalcopyrite may accumulate in secondary supergene enrichment zones, forming chalcocite, bornite, covellite …
Bornite is an important copper ore (it is both a copper and iron sulfide mineral). ... bornite tarnishes to a purplish iridescence, for which reason it is commonly called peacock ore. Hardness is 3, streak pale grayish black. Bornite occurs with chalcopyrite and chalcocite, both more important as ores, in copper deposits that typically form as ...
Chalcocite is formed either as a primary vein mineral or, more typically, in supergene deposits where it forms as a result of the redeposition of copper from the breakdown of minerals such as chalcopyrite or bornite. Chalcocite is distinguished with difficulty from digenite (Cu9S5) and djurleite (Cu31S16), both of which may form by the leaching of chalcocite. Chalcocite is thus …
Copper can be found in more than 200 minerals, but only about 10% of this occurs in the form of sulphide minerals (e.g., chalcopyrite, bornite and chalcocite) or oxidized minerals (e.g., cuprite), which are of significance as copper ores (Lossin, 2001). Depending mainly on the ore type, as well as the geographical, economic and environmental ...
Bornite, a copper-ore mineral, copper and iron sulfide (Cu5FeS4). Typical occurrences are found in Mount Lyell, Tasmania; Chile; Peru; and Butte, Mont., U.S. Bornite, one of the common copper minerals, forms isometric crystals but …
Chalcocite, Bornite, Chalcopyrite, Covellite, Pyrite, Galena, and Sphalerite: Dolomitic shales: Syngenetic sedimentary (Sawlowicz, 2013) Cu-Ag deposit: ... Bornite, as a copper sulfide ore with low rest potential, is usually leached preferentially. Then, due to its preferential dissolution, it provides a relatively lower redox potential for ...
Along with these ore minerals at places, barite veins is also observed in banded impure marble. Old workings for barite are also present in this area. The main ore minerals for copper are bornite, chalcopyrite, chalcocite, and covellite while other minor ore minerals such as digenite, cubanite, and djurleite are also observed.
Most Peacock Ore is sold as Bornite, when in fact it usually produced from acid-treating Chalcopyrite. Bornite is a common copper bearing mineral, and is used as an ore of copper …
Uses: Major ore of copper and as mineral specimens. Bornite is an important copper ore mineral. It ranks up there with many of the other copper ores such as chalcocite, chalcopyrite, covellite, digenite, cuprite and tetrahedrite . As a …
Bornite Briartite Catamarcaite. Comments: Briartite-type phase (Bri) in close association with catamarcaite (Ct) lining a cavity in massive bornite (Bn) - chalcocite (Cc) ore; Sp is sphalerite (CanMin v44:1481). Location: Bornite-rich ore from old dumps near the La Rosario vein, Capillitas epithermal deposit, Catamarca Province, Argentina..
This chapter describes the important copper ore Bornite (abbrv. bn), as seen with optical, reflected light microscopy. ... (1981) The replacement of rutile by chalcocite in the Zechstein copper ores of the Fore-Sudetic Monocline. Mineral Pol 12(1):69–76. Google Scholar Ramdohr P (1980) The ore minerals and their intergrowths, 2nd edn ...
Innovations, online magazine for copper: Mining & Extraction: May 2004 - Mining & Extraction - Producing copper nature's way: Bioleaching. Skip to search; Skip to primary navigation menu ... Others of economic importance are bornite (Cu 5 FeS 4), chalcocite (Cu 2 S) and covellite (CuS). Sulfide minerals are insoluble in water or acid ...
However, not all copper-containing minerals are of industrial importance. The following minerals are most widely used in industry: Chalcopyrite, copper pyrite Cu 2 FeS 2 or Cu 2 SFe 2 S 3. Bornite, Bornite, a variegated copper ore …
bornite, covellite, chalcocite, copper carbonates and oxides Dormant mine Tentative ore reserve (1967): 150, 000 t at 2% Cu and 10 g/t Ag and 4000 t at 6.3% Cu in waste dumps. ... and bornite Active mining license Total resources: 136 Mt at 0.53% Cu (at a cut-off grade of 0.25% Cu) Malachite Pan Cu-Ag Sediment-hosted strataboun d Cu-Ag
Copper ore is a mineral deposit that contains copper in concentrations high enough to be economically extracted and processed. Copper ore minerals include chalcopyrite, bornite, chalcocite, and malachite, among …
