Min. Also erron. eudyalite. [f. Gr. εὐδιάλυτος easily dissolved, f. εὐ- (see EU-) + διαλύειν to dissolve (see DIALYSE); the name refers to the solubility of the mineral in hydrochloric acid.] A vitreous bisilicate of zirconium, iron, calcium, sodium, and other elements, occurring in rhombohedral crystals, rose pink or brownish red; first found at Kangerdluarsuk in Greenland. Cf. EUCOLITE.
1837. Penny Cycl., X. 64/2. Eudyalite.
1887. Dana, Man. Min. (ed. 4), 275. Eudialyte.