noun
pyrrhotite
A magnetic iron sulfide mineral. Technical term used in geology and mineralogy.
磁硫鉄鉱は、しばしば黄鉄鉱や黄銅鉱とともに産出する。
Pyrrhotite often occurs together with pyrite and chalcopyrite.
Compound of 磁 (magnetic), 硫 (sulfur), 鉄 (iron), and 鉱 (ore), reflecting its composition and magnetic properties.