けいせき 珪石 LinksSentence search for 珪石Sentence search for けいせきSentence search for 硅石Sentence search for ケイ石Kanji details for 珪 and 石Edit in JMdict Noun1. silicaMineralogyOther forms硅石 【けいせき】、ケイ石 【けいせき】 Discussions Log in to talk about this word.