单词 randanite 释义 randanite Min.|rndnat|Also -dann-.[f. Randanne, Puy de Dme, France, its locality + -ite.](See quots.)1862Dana Elem. Geol. 67 Randanite, a kind of opal made of infusorial remains.1868Watts Dict. Chem., Randanite, an earthy hydrate of s...