蛋たん白ぱく石せきたんぱくせきじ字FuriganaMeanings1nounopalmineralogy›Mineralogy term for the gemstone opal. Often referred to by the loanword オパール in everyday contexts.See also: オパール蛋たん白ぱく石せきは虹にじ色いろの輝かがやき
