珪けい砂しゃけいしゃじ字FuriganaAudioMeanings1nounquartz sand; silica sandTechnical term for sand composed mainly of quartz or silica, used in glassmaking, construction, and industrial applications.ガラスの原げん料りょうとして珪けい砂しゃが使つかわれる。Break this sentence down in the analyzerQuartz sand is used as a raw material for glass.この工こう場じょうでは高こう純じゅん度どの珪けい砂しゃを精せい製せいしている。Break this sentence down in the analyzerThis factory refines high-purity silica sand.