noun🔗ShareMagnétiteA 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. "L'étudiant a utilisé un aimant puissant pour ramasser les minuscules morceaux de magnétite dans le sable.materialsubstancemineralgeologychemistryChat with AIVocabulary GamePractice Reading