noun
enargite
A copper arsenic sulfide mineral; technical term used in geology and mineralogy.
硫砒銅鉱は銅の重要な鉱石鉱物の一つである。
Enargite is one of the important copper ore minerals.
The Japanese name 硫砒銅鉱 is a compound of 硫 (sulfur), 砒 (arsenic), 銅 (copper), and 鉱 (ore/mineral), reflecting its chemical composition. The exact historical derivation is uncertain.