Source : Webster's Revised Unabridged Dictionary (1913)

Eudialyte \Eu*di"a*lyte\, n. [Gr. ? well easily + ? to dissolve.
   So called because easily dissolvable in acids.] (Min.)
   A mineral of a brownish red color and vitreous luster,
   consisting chiefly of the silicates of iron, zirconia, and
   lime.