Martite

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Wiktionary, Creative Commons Attribution/Share-Alike License
  • n. , (mineralogy) A variety of hematite that is pseudomorphic after magnetite crystals.
  • the GNU version of the Collaborative International Dictionary of English
  • n. Iron sesquioxide in isometric form, probably a pseudomorph after magnetite.
  • The Century Dictionary and Cyclopedia
  • n. Iron sesquioxid in isometric crystals, probably pseudomorph after magnetite. It occurs occasionally on a large scale, as in the Lake Superior iron region and the Cerro de Mercado in Mexico.
  • Word Usage
    "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."