noun
galena
A lead sulfide mineral and the most important ore of lead. Used in mineralogy and geology contexts.
方鉛鉱は鉛の主要な鉱石である。
Galena is the primary ore of lead.
The kanji 方 (square/cubic), 鉛 (lead), and 鉱 (ore/mineral) describe the mineral's crystal habit and composition. The exact historical derivation of the reading is uncertain.