磁铁矿
Magnetite \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}.
magnetite n : an oxide of iron that is strongly attracted by magnets [syn: {magnetic iron-ore}]