noun
magnetite; lodestone
Mineralogy term for the magnetic iron oxide Fe₃O₄. Lodestone refers to naturally magnetized magnetite.
磁鉄鉱は強い磁性を持つ鉱物だ。
Magnetite is a mineral with strong magnetism.
砂鉄には磁鉄鉱が多く含まれている
Iron sand contains a lot of magnetite.
赤鉄鉱 is hematite (Fe₂O₃), another iron oxide mineral, distinct from magnetite.
Composed of 磁 (magnetism), 鉄 (iron), and 鉱 (ore). The reading is a compound on'yomi.