Definition of "martite" []

• , (mineralogy) A variety of hematite that is pseudomorphic after magnetite crystals. (noun)

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• "Various analyses of this "martite" ore show from forty-four to sixty-eight per cent. of iron, and very low in both sulphur and phosphorus."
• "Messrs. Witherbee, Sherman & Company exhibited a series of ores and concentrates from Mineville, the Arnold Mining Company, magnetites and martite from"
• "The ore is mineralogically martite schist, and the enclosing rocks are grayish, greenish and pinkish siliceous schists, of probable eruptive origin."