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What does chromite look like?

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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.

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Get more facts and information about chromite . Or, view the full encyclopedia entry from The Columbia Encyclopedia, Sixth Edition.

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