• Ore | mining | Britannica

    ) Ore is a metalliferous mineral, or an aggregate of metalliferous minerals and gangue (associated rock of no economic value), that can be mined at a profit. Mineral deposit designates a natural occurrence of a useful mineral, while ore deposit denotes a mineral deposit of sufficient…

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  • 12. Supergene Ore and Gangue Characteristics

    In the traditional view, supergene ore and gangue minerals are the products of reactions between hypogene sulfide minerals and descending, acidic meteoric waters; these processes take place at or near the ground surface in subaerial environments (Guilbert and Park, 1986). In VMS deposits, copper and other metals are mobilized from primary massive

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  • Gangue

    M.D. Hannington, in Treatise on Geochemistry (Second Edition), 2014 13.18.7 Nonsulfide Gangue Minerals. The dominant gangue minerals in VMS ores are quartz, chlorite, muscovite, carbonates, and sulfates (mainly gypsum and barite). The same minerals form the dominant alteration in host rocks affected by the ore fluids (see below). Minor albite, epidote, amphibole, and tourmaline may also be ...

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  • Barite Mineral | Uses and Properties

    Barite is also a common mineral in hydrothermal veins and is a gangue mineral associated with sulfide ore veins. It is found in association with ores of antimony, cobalt, copper, lead, manganese, and silver. In a few locations barite is deposited as a sinter at hot springs.

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  • Mineral Resources

    An ore deposit will consist of ore minerals, that contain the valuable substance. Gangue minerals are minerals that occur in the deposit but do not contain the valuable substance. Since economics is what controls the grade or concentration of the substance in a deposit that makes the deposit profitable to mine, different substances require ...

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  • Guide for the microscopical identification of ore and ...

     · This guide is intended to serve as an introduction and helpful resource for geosciences students and professionals in the industry for identifying important opaque minerals and some synthetic phases. It includes the optical properties of 130 ore and gangue minerals as well as at least four photomicrographs of their typical appearances, textures ...

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  • Ore, gangue, ore minerals, gangue minerals

    Ore, gangue, ore minerals, gangue minerals. In most cases, an ore does not consist entirely of a single ore mineral but it is mixed with other valuable minerals and with unwanted or valueless rocks and minerals. The part of an ore that is not economically desirable and that can not be avoided in mining is known as gangue.

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  • Investigation of surface properties of gangue minerals in ...

    gangue minerals in platinum bearing ores by J. Martinovic*, D.J. Bradshaw*, and P.J. Harris* Synopsis The large proportion of gangue minerals present in platinum bearing ores in South Africa provides challenges to the flotation and downstream processes. In order to take effective measures to reduce

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  • Define the terms

    Q.6. Define the terms- (a) Mineral (b) Ore (c) Gangue. Ans. Mineral-The inorganic element or compound, which occurs naturally in the earth''s crust is called mineral.For example, copper pyrites (CuFeS 2), cuprite (Cu 2 O), etc. are the minerals of copper. Ore-The mineral from which a metal can be extracted profitably and conveniently is called an ore.

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  • Ore Forming Minerals: Metallic & Non-metallic Minerals

    Ore minerals . Two factors determine whether a given mineral is suitable to be an ore mineral. The first is the ease with which a mineral can be separated from the gangue and concentrated for smelting. Concentrating processes, which are based on the physical properties of the mineral, include magnetic separation, gravity separation, and flotation.

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  • Minerals | Free Full-Text | Ore Assimilation and Secondary ...

    The density, mineral nature, and the gangue of the ore affected coarse ore assimilation. During the iron ore sintering process, two types of particles are present in the sinter bed: (1) fines, which are actively taking part in melting and the formation of secondary phases, and (2) coarse ores, which are partially interacting with the ...

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  • Introduction to Mineral Processing or Beneficiation

     · 1.2 Ores and Minerals. Ore is a term used to describe an aggregate of minerals from which a valuable constituent, especially a metal, can be profitably mined and extracted. Most rock deposits contain metals or minerals, but when the concentration of valuable minerals or metals is too low to justify mining, it is considered a waste or gangue ...

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  • Process Mineralogy | Bruker

    Process mineralogy involves the analysis of relationships between ore and gangue (accessory) minerals in order to optimize the recovery of target elements. Data from scanning electron microscopes with automated mineralogy and x-ray diffraction is used to model comminution and concentration processes. The modal mineral abundance and textural information at the particle level can impact the ...

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  • How to Calculate Grade and Recovery with Examples ...

     · An ore contains multiple minerals in combination; it''s a mixture of valuable components and gangue. The ore grade refers to the fraction of a useful element within the ore. It can also be used for gangue as the proportion of a non-valuable substance, but generally, when we use the term grade, we mean the grade of a valuable element.

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  • Metallurgy, minerals, ores, and Gangue: Definition and example

     · Gangue. Answer. Minerals The naturally occurring metallic compounds are called minerals. For example Iron is found naturally as hematite (Fe2O3) and magnetite (Fe3O4). Here, hematite and magnetite are minerals of Iron. Ore A solid deposit containing sufficient percentage of a mineral from which extraction of metal is convenient and economical ...

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  • Mineral Processing – McClelland Laboratories Inc Reno (775 ...

     · Mineral Processing. If the mineralogy of the ore shows that you can separate discrete particles of the mineral you want from the gangue components of the ore, then it is possible to physically concentrate the valuable mineral and reject the rest. The easiest method for achieving this is …

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  • CHAPTER 11 APPLICATIONS OF ORE MICROSCOPY IN …

    Gangue minerals With special information on Locking types (including such data as tarnish. coating, veining. etc.), porosity. pitting, etc. Quantitative data Amounts ofmetallic ore minerals (and/o r) Amounts of nonmetallic ore minerals (and/or) Amounts ofnonore metallic minerals (and/o r) Amounts of gangue minerals

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  • Define (i) Mineral(ii) ore(iii) Gangue

     · 1) mineral -the naturally occuring compounds of elements are known as mineral2) ore- the mineral from which an element can be extracted easily and profitably is called an ore3) gangue- the impurities present in ore such as sand rock etc is known as gangue. Answer verified by Toppr.

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  • Ore Minerals : What are Ore Minerals? | Geology Page

     · An ore is a natural occurrence of rock or sediment which contains enough minerals with economically important elements, typically metals, that can be extracted from the deposit economically. The ores are extracted by mining for a profit from the earth; they are then refined (often by smelting) in order to extract the valuable elements.

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  • (PDF) Mineral Bijih, Mineral Asosiasi Dan Mineral Gangue ...

    Download. Mineral Bijih, Mineral Asosiasi Dan Mineral Gangue. Muhammad Nasution. TUGAS KULIAH GANESA BAHAN GALIAN Muhammad Syukri 12114019 Harry Kusuma 12114046 M. Archico Narendra 12114061 Ulfah Indah Safitri 12114095 Program Studi Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Institut Teknologi Bandung 2016 fPENJELASAN ...

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  • Gangue | Geology Wiki | Fandom

    In mining, gangue is the commercially worthless material that surrounds, or is closely mixed with, a wanted mineral in an ore deposit.The separation of mineral from gangue is known as mineral processing, mineral dressing or ore dressing and it is a necessary and often significant aspect of mining can be a complicated process, depending on the nature of the minerals involved.

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  • What are gangue minerals?

     · In mining, gangue is the commercially worthless material that surrounds, or is closely mixed with, a wanted mineral in an ore deposit. The separation of gangue from minerals can …

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  • "Ore and Gangue Mineral Paragenesis of the Cortez Hills ...

     · Clark, Lindsey R., "Ore and Gangue Mineral Paragenesis of the Cortez Hills Carlin-Type Gold Deposit, Nevada: Evidence for Coincident High-Grade Gold Deposition and Collapse Brecciation" (2012). UNLV Theses, Dissertations, Professional Papers, and Capstones .

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  • Siderite

     · Siderite - Mineral Properties, Photos and Occurence. Siderite is both an iron ore and gangue mineral. Its principal economic value lies in its high iron content and the absence of process contaminants such as sulfur or phosphorous. It is part of a large group of isomorphous minerals, the calcite group carbonates, which share similar physical ...

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  • Gangue

    If the gangue mineral in an iron ore is predominantly quartz, reverse flotation is usually used in the cleaning stage to improve the concentrate grade. Figure 9.13 presents a typical flow sheet for processing an oxidized iron ore containing about 30% Fe using a combination of SLon magnetite separators and reverse flotation. The ore is mainly composed of magnetite, hematite, martite, and quartz.

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  • Ore vs Gangue

    As nouns the difference between ore and gangue is that ore is rock that contains utilitarian materials; primarily a rock containing metals or gems which -- at the time of the rock''s evaluation and proposal for extraction -- are able to be separated from its neighboring minerals and processed at a cost that does not exceed those materials'' present-day economic values while gangue is...

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  • What is the difference between gangue and ore?

    Gangue is valueless mineral associated with a valuable mineral that can economically be utilized, which is an ore . e.g. pyrite (FeS2) will be a gangue mineral associated with say sphalerite (ZnS) if the latter mineral can be utilized commercially...

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  • Ore vs. Gangue

     · Ore bodies are formed by a variety of geological processes. The process of ore formation is called ore genesis. Gangue. In mining, gangue is the oft commercially worthless material that surrounds, or is closely mixed with, a wanted mineral in an ore deposit.

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  • Chapter 5 Section 3 Mineral Resources Flashcards | Quizlet

    Gangue is a waste rock remaining after a mineral ore is removed. Why is gangue sometimes reprocessed? If the price of the metal goes up or the technology improves the amount of the metal still in the gangue might be removed for a profit. The following minerals are …

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  • Define the terms mineral ore and gangue.

     · (ii) Ores - Those minerals from which the metals can be extracted conveniently and profitably are called ores. (iii) Gangue - The unwanted impurities like sand, rocky material, earthy particles etc., present in an ore are called gangue. (b) Before extracting metal from an ore, it is necessary to remove these impurities (gangue) from it.

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  • Define the following terms. (i) Mineral (ii) Ore (iii) Gangue

    All minerals are not considered as ores, but all ores are also minerals. Examples – Bauxite Al 2 O 3.2H 2 O is the ore of Al, copper pyrite CuFeS 2. Gangue. In chemistry, a gangue is an unwanted substance or impurity that surrounds the mineral in an ore deposit, such as sand, rock, or some other material.

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  • Process Mineralogy

     · In such cases liberation of gold minerals from the mass is difficult and very fine grinding is required for separation of gangue from the associated ore. Hematite is an iron mineral present in varying types, sizes and shapes from 10-50 microns to 300-900 microns grains of acicular, lath shaped, equant, crystalline to irregular shapes.

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  • MINERALS, ORE & GANGUE [ METALLURGY ]

     · In this video we will discuss about metallurgy next topic Minerals, Ore & Gangue . Mineral: The naturally occurring compounds of elements are known as M...

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  • Mineral Deposit Types, Mineralogy, Alteration, Host Rock ...

    The mineral deposit is not only related to ore minerals. They always have valuable minerals with them. These are called gangue minerals. An ore deposit rich enough to work with profits is called an ore deposit and is called ore minerals plus gangue ore in an ore deposit. Vein-Mineral-Deposits. Note.

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