Bornite
The mineral system characteristics of the Sudbury Ni-Cu-Co-PGE sulfide ore deposits. Peter C. Lightfoot, in Nickel Sulfide Ores and Impact Melts, 2017 The principal Cu-Fe-S minerals. The principal Cu-Fe-S minerals are chalcopyrite, cubanite, and bornite (Table 4.2).Chalcopyrite accounts for by far the major part of the Cu in the Sudbury deposits.
Origins of Chalcocite Defined by Copper Isotope Values
T : Copper isotope data from sedimentary copper type deposits where cc means chalcocite ands omesamples reported trace bn (bornite). Sample Location Phase 65 Cu (p er mil) Udokan, Russia cc −0.32
Copper leaching from complex chalcopyrite-rich ores: …
Traditionally, pyrometallurgical techniques have dominated the treatment for primary copper ores, constituting a substantial portion of global copper production [2], [3].However, significant concerns have arisen regarding global sulfur dioxide (SO 2) emissions.Moreover, the prevalence of impurities in complex sulfide ores exacerbates challenges in pyrometallurgical processing, …
Solvometallurgical process for extraction of copper from …
Copper can be extracted from various types of ores, most of which belong to the sulfidic ores such as chalcopyrite, bornite, covellite, digenite and chalcocite. Chalcopyrite is the most common copper-bearing mineral and accounts for approxi-mately 70% of …
Bornite: A mineral, an ore of copper, often called "peacock …
Upon surface exposure, bornite will weather to chalcocite or other copper minerals. Bornite is a popular and fast-selling mineral specimen at museums, mineral shows, and tourist shops. However, some material sold as "peacock ore" has a tarnish with spectacular colors - greatly exceeding what is expected on bornite.
Peacock Ore : Properties, Formation, Uses » Geology Science
Peacock ore is often confused with chalcopyrite (CuFeS₂), another copper-iron sulfide with similar iridescent qualities. However, chalcopyrite has a lower copper content …
Mineral Commodity Report 4
Major Ores and Minerals Copper occurs as native Cu and in many minerals, particularly as sulphides (chalcopyrite, bornite, chalcocite and covellite), sulphosalts (enargite), oxides (cuprite), and carbonates (malachite and azurite) (Table 1). Copper is chalcophile, and most ores consist of sulphides, particularly chalcopyrite,
Sustainable Use of Copper Resources: Beneficiation of Low-Grade Copper Ores
The important sulphide minerals of copper include chalcopyrite, chalcocite, bornite and covellite. Among them, chalcocite (79.8% Cu) and chalcopyrite (34.5% Cu) can be
Most Common Copper Minerals
The most common copper mineral is chalcopyrite, a sulfide mineral that contains about 34% copper by weight. Other important copper minerals include bornite, chalcocite, and malachite. These minerals can occur …
Kinetics and mineralogical analysis of copper dissolution …
Chalcopyrite (CuFeS 2) is the world's most abundant copper mineral, and, together with chalcocite (Cu 2 S) and bornite (Cu 5 FeS 4), may represent the main source of copper when easily processed copper ores have been depleted. Bornite is found frequently in mixed deposits, together with other refractory copper minerals, such as chalcopyrite and ...
Chemical composition of chalcocite, bornite, and chalcopyrite …
The wettability and floatability of oxidized chalcocite, bornite, and chalcopyrite with the conditions of sodium hydrosulfide (NaHS) dosages and pHs were studied by contact angle measurements, and ...
Solved Mhangura Mine copper ores have the metal in the
Question: Mhangura Mine copper ores have the metal in the minerals, bornite (Cu5FeS4), chalcopyrite (CuFeS2) and chalcocite (Cu2(S)). The gangue material is mainly, haematite (Fe2O3), silica (SiO2) and calcite (CaCO3). You are a metallurgist assigned to the rejuvenation of the mine processing plant.
Chalcocite – WGNHS – UW–Madison
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 …
Investigating the Influence of the Electrochemical …
Bornite is typically found as a secondary mineral in chalcopyrite and chalcocite deposits in copper-molybdenum and copper-gold ores. Chalcocite, although scarce, is still found as a primary mineral and has proved to be one of …
Full article: Bornite conductivity
The three major sulphide ores of copper, if pyrrhotite-free, are moderately to highly conductive: bornite -> chalcocite -> chalcopyrite. More bornite measurements would be desirable either to corroborate or modify these conclusions. The effects, if any, of other copper sulphides (such as covellite and digenite) on commercial Cu sulphide ores ...
What are the ores in copper?
The main ores of copper are chalcopyrite, bornite, chalcocite, and malachite. Chalcopyrite is the most abundant and widely distributed copper mineral, while bornite and chalcocite are also ...
Chalcopyrite: Mineral Uses and Properties
Chalcopyrite is a brass-yellow mineral with a chemical composition of CuFeS 2. It occurs in most sulfide mineral deposits throughout the world and has been the most important ore of copper for thousands of years. The surface of …
Bornite | Copper Ore, Copper Ore Mineral
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 is seldom found in these forms. It alters readily upon weathering to …
Chalcopyrite : (Copper) Properties, Formation, Uses, Deposits
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 various geological environments. It is often found in association with other sulfide minerals.
Solvometallurgical process for extraction of copper from chalcopyrite …
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 organic solvent).
Bornite (Peacock Ore)
Bornite is an important copper ore mineral and occurs widely in porphyry copper deposits along with the more common chalcopyrite. Chalcopyrite and bornite are both typically replaced by …
The grain of a primary bornite at the conversion stage to chalcocite …
The complete reaction of chalcopyrite at ≥220 °C under pressure oxidation conditions (10 or 20% w/w pulp density, PO2 700 kPa) is a clean process producing a residue consisting of hematite and ...
1. Exploration and Discovery
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.
Copper Ore Minerals: The main types and their …
Copper porphyry ores. Monometallic ores, sometimes containing molybdenum. 2-5% chalcopyrite and pyrite. 90-90% of the total mass of the ore is silicates, the predominant of which is quartz (60-95%), the rest of the rock is sericite.
δ 34 S values of chalcopyrite and bornite in quartz veins.
In the ores, covellin and chalcocite are the main copper minerals; less common are roxbyite, idaite, nukundamite, spioncopite, chalcopyrite, silver-bearing (Ag about 1 wt. %) bornite and yarrovite ...
NAMIBIA'S COPPER POTENTIAL
Chalcopyrite, bornite, pyrite and chalcocite Dormant mine Total resources3 6.1 Mt @1.33% Cu, 12 g/t Ag Kamzwas Cu Sediment-hosted strataboun d Cu-Ag Nosib and Hakos Groups () Malachite, bornite, chrysocolla, chalcopyrite, chalcocite, Active mining license Resources4: Orebody 1: 17 Mt @ 1.35% Cu Orebody 2: 42 Mt @ 2.40% Cu Orebody 3 (sulphide ...
Producing Copper Nature's Way: Bioleaching
The majority of copper minerals are sulfides, with chalcopyrite (CuFeS2) being the most abundant and thus economically the most important. 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 solutions unless they are first oxidized.
Chalcopyrite – WGNHS – UW–Madison
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 processing
Copper processing - Ores, Refining, Smelting: Principal forms in which copper ores are found include native copper, porphyry copper, massive deposits, and mixed ores. Native copper is simply the metal found unadulterated in nature. …
Copper Sulfide
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 ...