硫りゅう化か鉱こう物ぶつりゅうかこうぶつMeanings1nounsulfide mineralTechnical term used in geology and mineralogy.黄おう鉄てっ鉱こうは代だい表ひょう的てきな硫りゅう化か鉱こう物ぶつの一ひとつです。Pyrite is one of the representative sulfide minerals.