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A brownish-black mineral
Answer for the clue "A brownish-black mineral ", 8 letters:
chromite
Alternative clues for the word chromite
Word definitions for chromite in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Chromite \Chro"mite\, n. (Min.) A black submetallic mineral consisting of oxide of chromium and iron; -- called also chromic iron . (Chem.) A compound or salt of chromous hydroxide regarded as an acid. [R.]
Wikipedia
Word definitions in Wikipedia
Chromite is an iron chromium oxide : FeCrO. 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 magnesiochromite (MgCrO); substitution of aluminium occurs leading ...
WordNet
Word definitions in WordNet
n. a brownish-black mineral; the major source of chromium
Wiktionary
Word definitions in Wiktionary
n. 1 (context mineral English) A dark brown mineral species with the formula FeCr 2 O 4 . 2 Any member of the chromite-magnesiochromite series that is a mixed oxide of iron, magnesium and chromium with the formula (Fe,Mg)Cr 2 O 4 . It is a commercial source ...
Usage examples of chromite.
Gustavus Adolphus to send an expedition to Finland to look for chromite at Kemi.
If chromite in the up-time universe was used for a dye, he might be able to use that fact to enlist Amsterdam dye makers in an expedition.
It should be a simple matter to negotiate for the land grants needed to mine the chromite in the Baltimore area.
Nigekus would never have dreamed that after eighteen years working the chromite digs in the hills above the village, the little colony would still owe a debt to the captain of the freighter that had brought them there.