chrome iron oren. (also called chrome iron-stone) chrome iron, chrome ore, and chromate of iron, chromite), the most abundant ore of chromium, consisting chiefly of chromic oxide (Cr2O3) and ferrous oxide (FeO).
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1866 H. E. RoscoeLessons Elem. Chem. xxiii. 200 The chief ore of this metal is a compound of the oxides of chromium and iron, called chrome iron-stone.