chromite mineral

Chromite Department of State Development

Chromite is used as a refractory in the production of steel, copper, glass and cement. Chromite occurs as a primary accessory mineral in basic and ultrabasic igneous rocks. Economic deposits form by crystallisation of chromite from a cooling magma, resulting in

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Samancor Chrome Mines Mining Technology Mining News

With low electricity prices, South Africa has been able to expand chromite and ferrochrome production more or less continuously since the AOD process was developed in the 1960s to use ferrochrome smelted from lowergrade ores. Samancor was created in

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Extraction of Chromium from Chromite Ore

Chemicalgrade chromite ore generally ranged from 40 to 46 pct Cr2O3 with a chromiumtoiron ratio of 1.5:1 to 2:1. Refractorygrade chromite ores contained a minimum of 20 pct Al2O3 and more than 60 pct Al2O3 plus Cr2O3.

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Chromite mineral Britannica.com

Chromite, relatively hard, metallic, black oxide mineral of chromium and iron (FeCr2O4) that is the chief commercial source of chromium. It is the principal member of the spinel series of chromium oxides the other naturally occurring member is magnesiochromite, oxide of magnesium and chromium

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Rapid Analysis of Chromite and Chrome Ore USGS

recommended by Thayer (1956, p. 14), refers to the mineral chromite. To distinguish between the mineral and the commercial ore, which is also commonly referred to as chromite, the ore is designated "chrome ore." This would be presump­ RAPID ANALYSIS OF CHROMITE AND CHROME ORE *.

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Chromite – Sibelco

Chromite is an iron chromium oxide commonly associated with olivine, magnetite, serpentine, and corundum. As a major source of metal chromium, the extracted chromium from chromite is used in chrome plating and alloying for production of corrosion resistant superalloys, nichrome and

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Chromite mgtmineral.com

The mineral Chromite ((Mg, Fe)Cr2O4), is a member of the spinel group of minerals and is ubiquitous, constituting about 1 percent, within the ultramafic part of ophiolite sequences. When chromite is concentrated, it can occur in two forms, stratiform and podiform chromite deposits.

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ChromiteMagnesiochromite Series: Mineral information

ChromiteMagnesiochromite Series mineral data, information about ChromiteMagnesiochromite Series, its properties and worldwide loions. SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser! Log In Register.

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Chromite YouTube

Oct 26, 2015 · Chromite is an iron chromium oxide: FeCr2O4. It is an oxide mineral belonging to the spinel group. Magnesium can substitute for iron in variable amounts as it forms a solid solution with

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KPMG commodity insights bulletin chromite

Chromite – Chromite is the commercial name of iron chromium oxide (FeCr2O4), a mineral comprised of chromium and iron oxide that is naturally found in the earth''s mantle. When extracted, it is referred to as chrome ore. – Chromite is crucial for the production of ferrochrome, an alloying agent in manufacturing stainless steel.

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Chromite Pasargad Neshan Pars

Chromite is an iron chromium oxide: FeCr2O4. It is an oxid mineral belonging to the spinel group. Magnesium can substitute for iron in variable amounts as it forms a solid solution with magnesiochromite (MgCr2O4) substitution of aluminium occurs leading to hercynite (FeAl2O4).

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Chromite Wikipedia

Chromite is an important mineral in helping to determine the conditions that rocks form. It can have reactions with various gases such as CO and CO 2. The reaction between these gases and the solid chromite grains results in the reduction of the chromite and allows for the formation of iron and chromium alloys.

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Cochromite Mineral Data

Ask about Cochromite here : AskAMineralogist from the Mineralogical Society of America Mindat.org''s Discussion Groups Original Rockhounds Discussion Group Rockhounds Discussion Group on Yahoo Groups Mineral Discussion Forum from Fabre Minerals also available in Español. Print or CutandPaste your Cochromite Specimen Label here :

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Chromite Mineralogy4Kids

The only ore of chromium, chromite is a major constituent in stainless steel. It is one of the first minerals to separate from a cooling magma, and large chromite deposits are thought to have been derived by such magmatic differentiation.

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Rapid Analysis of Chromite and Chrome Ore USGS

recommended by Thayer (1956, p. 14), refers to the mineral chromite. To distinguish between the mineral and the commercial ore, which is also commonly referred to as chromite, the ore is designated "chrome ore." This would be presump­ RAPID ANALYSIS OF CHROMITE AND CHROME ORE *.

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Chromite mineral information and data Dakota Matrix Minerals

Chromite is a common and widespread mineral that occurs in the ultramafic layers of layered igneous intrusions, as an accessory mineral in Alpinetype peridotites, as a detrital mineral, in meteorites, and in lunar basalts. Large crystals can be found in France, Sierra Leone, and New Caledonia, and economic deposits are found at the Bushveld

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Chromite Mineral Data webmin.mindat.org

Chromite Antigorite Comments: Chromite veins in yellow to green antigorite with picrolite, chromian antigorite and dolomite (polished section). Loion: Wood''s Mine, near ''Texas'', Little Britain Township, Lancaster County, Pennsylvania, USA.

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Mineral Properties, Photos, Uses and Descriptions

Chromite Chrysoberyl Cinnabar Clinozoisite Copper Cordierite Corundum Diamond Diopside Dolomite Epidote Euclase Feldspar Fluorite Fuchsite Galena Garnet Gaspeite Gold Talc is a soft mineral used in cosmetics, paper, paint, ceramics and many other products. Crystal Habit.

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Minerals in Your House Mineralogy4Kids

Feldspar (porcelain) Pyrolusite (coloring) Chromite (plumbing fixtures) Copper (tubing) Click on a button below to see what minerals can be found in your home! All

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Rock and Mineral Resources Geology Lumen Learning

This sulfide mineral (usually pentlandite, pyrite, chalcopyrite or pyrrhotite) gains platinum by mixing with the bulk of the magma because platinum is chalcophile and is concentrated in sulfides. Alternatively, platinum occurs in association with chromite either within the chromite mineral itself or within sulfides associated with it.

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Chromite mgtmineral.com

The mineral Chromite ((Mg, Fe)Cr2O4), is a member of the spinel group of minerals and is ubiquitous, constituting about 1 percent, within the ultramafic part of ophiolite sequences. When chromite is concentrated, it can occur in two forms, stratiform and podiform chromite deposits.

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Chromite: Mineral information, data and localities.

Chromite is the most important chromium ore mineral. It forms a complete solid solution series with many other members of the group, eg. in the ChromiteHercynite Series, ChromiteSpinel Series, ChromiteMagnetite Series and the ChromiteMagnesiochromite Series.It is the iron analogue of Zincochromite, Cochromite, Manganochromite and Magnesiochromite and the Cr analogue of

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Industrial Minerals indmin.com

Chromite is the commercial name for iron chromium oxide (FeCr 2 O 4), a mineral containing chromium (a transition metal with multiple oxidation states) and iron oxide. In its purest form, chromite comprises chromium (Cr 2 O 3) at 68% and iron oxide (FeO) at 32%.

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Chromite Mineral Data

Visit our Advertisers for Chromite : Dakota Matrix Minerals Google Search for Chromite John Betts Fine Minerals Search for Chromite McDougall Minerals Google Search for Chromite Rock and Mineral Shows Google Search for Chromite Weinrich Minerals, Inc. Google Search for Chromite. Ask about Chromite

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How Is Chromite Used? Reference.com

Chromite is the mineral ore of the metal Chromium, and the chromium must often be extracted from the ore and purified before it is used. Chromium is an important ingredient in steel it gives this metal increased hardness and toughness, and it helps it reduce chemical erosion over time. Chromium is also vital in the aerospace industry because

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Nichromite Mineral Data

Visit our Advertisers for Nichromite : Dakota Matrix Minerals Google Search for Nichromite John Betts Fine Minerals Search for Nichromite McDougall Minerals Google Search for Nichromite Rock and Mineral Shows Google Search for Nichromite Weinrich Minerals, Inc. Google Search for Nichromite. Ask about Nichromite here :

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Chromite Mineral Specimen For Sale Dakota Matrix Minerals

Chromite Rich, solid granular or crystalline aggregate of black Chromite ore. Though not producing Chromite ore, this large 30 mile complex of layer igneus mafic rock currently does not produce chromium ore. It is currently mined for its platinum and palladium only. Ore specimens are hard to obtain. Widely used in chemicals, metals and refractory materials.

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Minerals.net Mineral News Chromite Mining History in

This sample of chromite, also know as Iron Chromate (FeCr 2 O 4) is from a lens of ore in the Arundel Corporations''s Delight Serpentine Quarry, loed in Reisterstown, Maryland.The Calhoun chromite mine of the Tyson Mining Company was loed on the quarry site and last operated around 1880.

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Chromite Mineral Data webmin.mindat.org

Chromite Antigorite Comments: Chromite veins in yellow to green antigorite with picrolite, chromian antigorite and dolomite (polished section). Loion: Wood''s Mine, near ''Texas'', Little Britain Township, Lancaster County, Pennsylvania, USA.

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Chromium Statistics and Information usgs.gov

Chromium (Cr) has a wide range of uses in metals, chemicals, and refractories. It is one of the Nation''s most important strategic and critical materials. Chromium use in iron, steel, and nonferrous alloys enhances hardenability and resistance to corrosion and oxidation. The use of chromium to produce stainless steel and nonferrous alloys are two of its more important

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Nichromite Mineral Data

Visit our Advertisers for Nichromite : Dakota Matrix Minerals Google Search for Nichromite John Betts Fine Minerals Search for Nichromite McDougall Minerals Google Search for Nichromite Rock and Mineral Shows Google Search for Nichromite Weinrich Minerals, Inc. Google Search for Nichromite. Ask about Nichromite here :

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The Northern Miner – Mining News Since 1915

Sun Metals is a mineral exploration company focused on advancing its flagship Stardust project loed in central British Columbia, Canada. Stardust is a polymetallic Carbonate Replacement Deposit with a rich history. Sun Metals believes British Columbia is a reliable jurisdiction with excellent exposure to capital markets, a deep pool of

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Magnesiochromite: The mineral magnesiochromite information

Magnesiochromite is very similar to Chromite, and is often mistaken for it.Due to their similarity, it is very difficult to visually distinguish these two minerals. Magnesiochromite is the magnesiumdominating form in a series with Chromite, whereas Chromite is irondominating.

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Chromite Earth Sciences Museum University of Waterloo

Chromite is a cumulate mineral which is found in ultramafic portions of layered mafic intrusions or in serpentines and other metamorphic rocks derived from the alteration of ultrabasic rocks. Due to its high crystallization temperature, this mineral is often found in the lower parts of magma bodies from the fractional crystallization process.

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Chromite: The only mineral ore of chromium metal

What is Chromite? Chromite is an oxide mineral composed of chromium, iron, and oxygen (FeCr 2 O 4).It is dark gray to black in color with a metallic to submetallic luster and a high specific gravity. It occurs in basic and ultrabasic igneous rocks and in the metamorphic and sedimentary rocks that are produced when chromitebearing rocks are altered by heat or weathering.

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Chromite and Other Mineral Deposits in Serpentine Rocks Of

CHROMITE AND OTHER MINERAL DEPOSITS IN SER­ PENTINE ROCKS OF THE PIEDMONT UPLAND, MARY­ LAND, PENNSYLVANIA, AND DELAWARE By NANCY C. PEARRE and ALLEN V. HEYL, JR. ABSTRACT The Piedmont Upland in Maryland, Pennsylvania, and Delaware is about 160 miles long and at the most 50 miles wide.

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