noun🔗ShareMagnetitA magnetic mineral, Fe3O4, one of the primary ores of iron. It has also been called lodestone."The student used a strong magnet to pick up the tiny pieces of magnetite from the sand. "Der Schüler benutzte einen starken Magneten, um die winzigen Magnetitstücke aus dem Sand aufzusammeln.materialsubstancemineralgeologychemistryChat with AIVocabulary GamePractice Reading