輝き安あん鉱こうきあんこうMeanings1nounstibnite; antimonitemineralogyA mineral composed of antimony sulfide, used in industry and as an ore of antimony. Technical term in mineralogy.輝き安あん鉱こうはアンチモンの主しゅ要ような鉱こう石せきである。Stibnite is a major ore of antimony.