chromite
Americannoun
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Chemistry. a salt of chromium in the bivalent state.
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Mineralogy. a cubic mineral, ferrous chromate, Fe 3 Cr 2 O 3 , usually with much of the ferrous iron and aluminum replaced by magnesium, and some of the chromium by ferric iron: the principal ore of chromium.
noun
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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: FeCr 2 O 4
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a salt of chromous acid
Etymology
Origin of chromite
1830–40; chrom(ium) or chrom(ate) + -ite 1
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
First, the rock shows a slow increase in extraterrestrial chromite that lasted between 2 million and 4 million years.
From Scientific American • Sep. 19, 2019
The chromite occurs in layers, which resemble sedimentary layers, except this occurred within a crystallizing magma chamber.
From Textbooks • Jan. 1, 2017
‘They had to destroy every segment of our life’ Near Datta Khel, in North Waziristan, is a tree-covered mountain that contains deposits of chromite.
From The Guardian • Apr. 21, 2016
Mr Campbell is accused of seeking to arrange the export of the yellowcake from Sierra Leone to the Iranian port of Bandar Abbas, packed in drums and disguised as the mineral chromite.
From BBC • Aug. 24, 2013
The chromite petered out in a month and a half, and he was lucky to break even.
From All Day September by Dongen, H. R. van
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
