chemical structures minerala bornite

  • Bornite Cu5FeS4 Handbook of Mineralogy

    Bornite. Cu5FeS4 c 20012005 Mineral Data Publishing, version 1. Crystal Data: Orthorhombic, pseudocubic. Point Group: 2/m 2/m 2/m. Crystals pseudocubic c = 10.950. Z = 16. Xray Powder Pattern: Messina, South Africa. 1.937 (100), 3.18 (60), 2.74 (50), 1.258 (50), 1.119 (50), 3.31 (40), 2.50 (40). Chemistry: (1). (2).

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  • Bornite: Bornite mineral information and data. Mindat

    Important copper ore. Typically found as massive metallic material, it has a copperred color on fresh exposures which quickly tarnishes to an iridescent purple after exposure to air and moisture. May be confused with tarnished chalcopyrite . In the Zechstein deposits of Poland there are six varieties: pinkorange, pinkviolet, 

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  • Bornite R050322 RRUFF Database: Raman, Xray, Infrared, and

    Name: Bornite RRUFF ID: R050322 Ideal Chemistry: Cu5FeS4. Locality: Bethlehem Copper mine, Highland Valley, Logan Lake, British Columbia, Canada Source: Lloyd Twaites Owner: RRUFF Description: Irridescent purple metallic massive. Status: The identifiion of this mineral has been confirmed by Xray diffraction 

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  • Bornite Mineral Data

    Chemical Formula: Cu5FeS4. Help on Composition: Environment: Disseminated in igneous intrusions and a primary and secondary mineral in copper ore veins. Help on IMA Status: Tunell G, Adams C E, American Mineralogist, 34 (1949) p.824829, On the symmetry and crystal structure of bornite. View Additional 

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  • compositional controls on phase.transition temperatures in bornite

    Structural phase transitions in bornite (Cu.FeSo) are associated . the intermediate bornite structure is stable (Kanazawa et al. t978, Grguric et al. 1996). This structure is also cubic Frn3m, and the transition from the high form involves a .. These contaminants, solution mineral interaction and chemical exchange, unless in 

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  • Geology of Gems

    What is Crystallography? Crystallography is the branch of science that studies the physical and chemical properties of crystals. Crystallographic studies typically focus on the internal arrangement of atoms within the crystalline structure of a gem, mineral, or chemical substance with an internal crystalline character. Most pure 

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  • Bornite mineral Britannica.com

    Bornite, a copperore 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 is seldom found in these forms. It alters readily upon weathering to chalcocite and other 

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  • Bornite: A mineral, an ore of copper, often called "peacock ore"

    Bornite is a copper iron sulfide mineral with a chemical composition of Cu5FeS4. It occurs in igneous, metamorphic, and sedimentary rocks. Minable concentrations of bornite occur in hydrothermal veins, contact metamorphic zones, and in the enriched zone of many sulfide mineral deposits. Chalcopyrite, marcasite, and 

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  • Bornite Cu5FeS4 Handbook of Mineralogy

    Bornite. Cu5FeS4 c 20012005 Mineral Data Publishing, version 1. Crystal Data: Orthorhombic, pseudocubic. Point Group: 2/m 2/m 2/m. Crystals pseudocubic c = 10.950. Z = 16. Xray Powder Pattern: Messina, South Africa. 1.937 (100), 3.18 (60), 2.74 (50), 1.258 (50), 1.119 (50), 3.31 (40), 2.50 (40). Chemistry: (1). (2).

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  • Minerals Free FullText Nanoscale Study of ClausthaliteBearing

    Feb 13, 2018 Despite their modest proportions, their speciation and mineral chemistry can be important sources of information that can help constrain conditions and from high to low T are well defined with either cubic (bornite, digenite) or hexagonal (chalcocite) symmetry, indiing the primitive parent structure [24].

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  • Mineralogy of Sulfides Elements Elements Magazine

    Apr 1, 2017 Metal sulfides are the most important group of ore minerals. Here, we review what is known about their compositions, crystal structures, phase relations and parageneses. Much less is known about their surface chemistry, their biogeochemistry, or the formation and behaviour of 'nanoparticle' sulfides, 

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  • Bornite (Peacock Ore) – Occurrence, Properties, and Distribution

    Sep 26, 2013 Introduction to Bornite. Chemical Formula – Cu5FeS4. Bornite was named after Ignaz Edler von Born (1742–1791), a distinguished Austrian mineralogist. This mineral is also referred to as peacock ore.

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  • A Petrographic and Mineragraphic Study of the Wits University

    The main ore—mineral was found to be chalcocite, occurring together with lesser amounts of digenite, bornite, Correlations between the various chemical and physical properties of the ore were sought using computer .. either a result of. structural compliions, or, more likely, it is due to the incorrect classifiion and 

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  • Bornite Wikipedia

    Bornite, also known as peacock ore, is a sulfide mineral with chemical composition Cu5FeS4 that crystallizes in the orthorhombic system (pseudocubic). Contents. [hide]. 1 Appearance 2 Mineralogy. 2.1 Structure 2.2 Composition 2.3 Form and twinning. 3 Occurrence 4 History and etymology 5 See also 6 References 

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  • The surface properties of bornite Semantic Scholar

    copper in this crystal chemical environment is suggested to account for its preferential oxidation. Bornite is, therefore, an example of a relatively rapidly tar nishing sulphide mineral and a good subject of study in regard to the nature of such surface reactions in .. pyrite structures (which have a cubic closepacked array of 

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  • Mineral description : Bornite

    Jun 12, 2000 Mineral class, Sulphides : Chalkopyrite bornite group. Chemical formula, Cu5FeS4 >. Crystal system, Ortorhombic. Habitus, Crystals rare. Often as compact grainy masses. Cleavage, [111] very poor, octahedral, fracture conchoidal. Hardness, 3. Density, 4.9 5.3. Color, Reddish bronze, purple, opaque.

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  • Bornite peacock ore: The mineral Bornite information and pictures

    Detailed description, properties and locality information guide about the copper mineral bornite peacock ore. However, most Peacock Ore in reality is Chalcopyrite treated with acid, which produces a stronglycolored iridescent tarnish. Bornite is named for Ignatius von Born, Chemical Formula, Cu5FeS4. Composition 

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  • Peacock Ore: Prettiest when Tarnished Chicago Rocks & Minerals

    Peacock ore is a pet name, referring to rocks made of the minerals bornite and chalcopyrite. The colors of peacock ore are actually tarnish upon the ore's surface. There are many unique properties that define this beautifully dirty rock. The official chemical formula of bornite is Cu5FeS4 and chalcopyrite is CuFeS2. The ore is 

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  • Minerals Free FullText CoBioleaching of Chalcopyrite and Silver

    Dec 26, 2017 Chalcopyrite and bornite are two important copper minerals, and they often coexist. Chemical analysis of the samples showed that the chalcopyrite sample consisted of 33.91% Cu, 30.62% Fe, 32.90% S, 0.039% Pb, 0.018% Zn and 6.91 g/t Ag and the bornite samples, of 62.38% Cu, 10.55% Fe, 22.60% 

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  • Bornite Mineral Information, photo and Facts: Copper Ore

    Bornite Mineral Facts: Chemical Formula: Cu5FeS4 The Mineral is 63.3% Copper by weight. Sometimes known as Peacock ore. Colors: BrownishBronze on fresh surface, quickly tarnishing to a variegated purple and blue, and eventually in time to almost black. Streak: grayish black. Hardness: 3. Density: 5.07. Cleavage: 

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