chromite

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chromite

chromite , dark brown to black mineral. It is an iron-chromium oxide, FeCr ₂ O ₄ , with traces of magnesium and aluminum. Its crystals are octahedral, but rare; it usually occurs as irregular, granular masses in association with igneous rocks, including ophiolites, which are segments of oceanic crust exposed on land by tectonic processes usually associated with plate convergence (see plate tectonics ). Chromitite is an igneous rock composed chiefly of the mineral chromite. The only commercial source of chromium and its compounds, chromite is used in the manufacture of refractory materials. Principal countries producing chromite are South Africa, Zimbabwe, the Philippines, and Turkey.

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chromite

World Encyclopedia | 2005 | Â© World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

chromite Black mineral, ferrous chromic oxide (FeO.Cr₂O₃), separated from magma in the formation of igneous rock. It is weakly magnetic and opaque. Hardness 5.5; r.d. 4.6.

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Free newspaper and magazine articles

	Resource Finance Announces a New Source of Chromite in the USA and Reports on the Oregon Resources Corp. Industrial Minerals Project. Business Wire; 1/10/2006
	Gossan Resources - update on private placement - Kiskitto Lake project - Pipestone Lake project - Chromite project. Business Wire; 4/21/1995
	Legend International Holdings Announces That Macro-Diamonds and Kimberlitic Chromites Have Been Recovered in a Stream Sample at the Abner Range Project in the Northern Territory of Australia. Business Wire; 4/11/2007

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	Chromite Magazine article from: Mining Engineering; 6/1/2000; ; 700+ words ; J.F. PAPP. US Geological Survey Chromite ore is produced in 18 countries. South...than half of the world's production. Chromite ore is consumed by the chemical, foundry...produced. Foundry industry products include chromite casting sand. Refractory industry products...
	NORONT OUTLINES EXTENSIVE CHROMITE MINERALIZATION AT BLACKBIRD. News Wire article from: AsiaPulse News; 1/15/2009; 700+ words ; ...Noront Continues to Outline Extensive Chromite Mineralization at Blackbird TORONTO...additional chromium assay results from its chromite exploration activities in the McFaulds...assay results from holes on the Blackbird Chromite Deposits include widespread chromite...
	Freewest Intersects 110 Metres of Chromite Mineralization in 1.6 Kilometre Step-Out Hole Testing the Black Thor Chromite Zone on Its 100%-Owned McFaulds Property, Northern Ontario. News Wire article from: Internet Wire; 9/29/2008; 700+ words ; ...08-03 contains a 50 metre-wide section of semi-massive and massive chromite within a broader zone of 110 metres of chromite mineralization - The Black Thor chromite zone currently has a minimum strike length of 1600 metres and remains open...
	Noront Continues to Outline Chromite Mineralization at Blackbird One and Two. News Wire article from: Internet Wire; 10/16/2008; 700+ words ; ...present additional assay results from its chromite exploration activities in the McFaulds...Blackbird Two continues to encounter chromite mineralization in holes designed to test...ultimate potential dimensions of the chromite mineralization. The continued success...
	Noront Resources Completes Preliminary Metallurgical Tests on Blackbird Chromite Mineralization. PR Newswire Europe; 4/27/2009; 700+ words ; ...metallurgical studies prepared by SGS Lakefield on chromite mineralization from its Blackbird chromite deposits in the Ring of Fire area of northern...products, not only from the high grade massive chromite beds, but also from lower grade zones diluted...
	Freewest Resources Canada Inc.: High-Grade Chromite Intersections Continue to Outline Big Daddy Chromite Deposit James Bay Lowlands of Ontario. News Wire article from: Internet Wire; 12/15/2008; 700+ words ; ...86 g/t PALLADIUM, SANDWICHED BETWEEN MASSIVE CHROMITE LAYERS. - MASSIVE CHROMITE BED(S) ENCOUNTERED OVER STRIKE LENGTH OF 400...Spider-KWG Joint venture has been on the massive chromite occurrence that was first discovered on the Freewest...
	Freewest Intersects 40.4% Cr2O3 Over 46.3 Metres at the Black Thor Chromite Occurrence on Its 100%-Owned McFaulds Property, Northern Ontario; EXPLORATION HIGLIGHTS: - Assays obtained from the first hole drilled on the Black Thor chromite zone (BT-08-01), yielded 40.4% Cr2O3 over 46.3 metres - The above high-grade interval is contained within a broader zone of chromite mineralization assaying 30.1% Cr2O3 over a core length of 100.8 metres. News Wire article from: Internet Wire; 11/26/2008; 700+ words ; ...from recent diamond drilling of the Black Thor chromite zone. The Black Thor chromite zone is situated on the Company's 100%-owned...Ring of Fire" metal district. BLACK THOR CHROMITE OCCURRENCE: Drill-hole BT-08-01was the...
	Probe Mines Completes Phase II Drilling on its Black Creek Chromite Discovery; Expands Zone to 200 Metre Strike Length and up to 63.6 Metres Wide. News Wire article from: Marketwire Canada; 10/20/2009; 700+ words ; ...Project's Black Creek high-grade chromite discovery in the McFauld's Lake...extending the strike length of the massive chromite horizon to 200m. The zone still remains open in all directions. The chromite horizon was intersected in all 11...
	Noront Continues to Outline Extensive Chromite Mineralization at Blackbird. PR Newswire Europe; 1/14/2009; 700+ words ; ...additional chromium assay results from its chromite exploration activities in the McFaulds Lake...Additional assay results from holes on the Blackbird Chromite Deposits include widespread chromite mineralization in several holes including Hole...
	Freewest Resources Canada Inc., Spider Resources Inc. & KWG Resources Inc. Provide Exploration Update on the Big Daddy Chromite Prospect; - Hole FW-09-29 intersects 74.9 metres of massive chromite mineralization. - Metallurgical tests conclude that greater than 40% Cr2O3 can be considered direct shipping ore with 1.9 Cr:Fe ratio. News Wire article from: Marketwire Canada; 10/14/2009; 700+ words ; ...an exploration update on the Big Daddy Chromite property. Eight drill holes, 2,073...completed, and have tested the Big Daddy Chromite prospect (a magmatic chromium deposit...holds a 50% interest in the Big Daddy chromite property, while joint-venture partners...