mag·ne·tite /ˈmægnəˌtaɪt/
磁鐵礦
Mag·net·ite n. Min. An oxide of iron (Fe3O4) occurring in isometric crystals, also massive, of a black color and metallic luster. It is readily attracted by a magnet and sometimes possesses polarity, being then called loadstone. It is an important iron ore. Called also magnetic iron.
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magnetite
n : an oxide of iron that is strongly attracted by magnets [syn:
magnetic iron-ore]