noun
arsenopyrite; mispickel
A common iron arsenic sulfide mineral; used in geology and mineralogy.
この鉱山では硫砒鉄鉱が産出される。
Arsenopyrite is mined at this mine.
The kanji 硫 (sulfur), 砒 (arsenic), 鉄 (iron), and 鉱 (ore) describe the composition of the mineral. The reading is on'yomi.