magnetite

mag·net·ite  (mgn-tt)

n.

The mineral form of black iron oxide, Fe₃O₄, that often occurs with magnesium, zinc, and manganese and is an important ore of iron.

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magnetite [ˈmægnɪˌtaɪt]

n

(Earth Sciences / Minerals) a black magnetic mineral, found in igneous and metamorphic rocks and as a separate deposit. It is a source of iron. Composition: iron oxide. Formula: Fe₃O₄. Crystal structure: cubic

magnetitic  [ˌmægnɪˈtɪtɪk] adj

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magnetite  (mgn-tt)

A brown to black mineral that is strongly magnetic. It crystallizes in the cubic system and commonly occurs as small octahedrons. Magnetite occurs in many different types of rock and is an important source of iron. Chemical formula: Fe₃O₄.

Thesaurus

Noun

1.

magnetite - an oxide of iron that is strongly attracted by magnets magnetic iron-ore emery - a hard grey-black mineral consisting of corundum and either hematite or magnetite; used as an abrasive (especially as a coating on paper) iron ore - an ore from which iron can be extracted loadstone, lodestone - a permanent magnet consisting of magnetite that possess polarity and has the power to attract as well as to be attracted magnetically