noun
cuprite; red copper ore
A mineral composed of copper(I) oxide, often found as red crystals or earthy masses. Technical term used in mineralogy and geology.
赤銅鉱は銅の重要な鉱石鉱物の一つです。
Cuprite is one of the important ore minerals of copper.
The kanji 赤 (red), 銅 (copper), and 鉱 (ore) directly describe the mineral's appearance and composition. The reading is on'yomi.