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A widely distributed black to brownish-black chromium ore, FeCr2O4.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Minerals) a brownish-black mineral consisting of a ferrous chromic oxide in cubic crystalline form, occurring principally in basic igneous rocks: the only commercial source of chromium and its compounds. Formula: FeCr2O4
2. (Elements & Compounds) a salt of chromous acid
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
1. a salt of chromium in the bivalent state.
2. a black mineral, ferrous chromate, FeCr2O4, the only ore of chromium.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||chromite - a brownish-black mineral; the major source of chromium|
atomic number 24, chromium, Cr - a hard brittle multivalent metallic element; resistant to corrosion and tarnishing
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
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