玉ぎょく滴てき石せきぎょくてきせきMeanings1nounhyalite; water opal; Müller's glassmineralogy›A mineralogical term for a colorless, glassy variety of opal. Used in geology and gemology contexts.玉ぎょく滴てき石せきは、火か山ざん岩がんの
