noun🔗Share蛍石（ほたるいし）A widely occurring mineral (calcium fluoride), of various colours, used as a flux in steelmaking, and in the manufacture of glass, enamels and hydrofluoric acid."Fluorite is the main natural resource of Thailand."蛍石はタイの主要な天然資源です。mineralmaterialsubstancegeologychemistryindustryscienceChat with AIVocabulary GamePractice Reading
