輝き銀ぎん鉱こうきぎんこうMeanings1nounargentite; silver glancemineralogyA mineral consisting of silver sulfide; a historically important silver ore. Used in mineralogy and geology contexts.輝き銀ぎん鉱こうは銀ぎんの重じゅう要ような鉱こう石せき鉱こう物ぶつの一ひとつである。Argentite is one of the important ore minerals of silver.