magnetite

noun

1. an oxide of iron that is strongly attracted by magnets
   Terjemahkan ke Indonesia sumber: wordnet30
2. 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.
   Terjemahkan ke Indonesia sumber: webster1913