Definition of eudialyte
: a mineral Na4(Ca,Fe)2ZrSi6O17(OH,Cl)2 consisting of a brownish red silicate chiefly of sodium, iron, zirconium, and calcium that occurs in crystals or masses and is optically positive (H.5–5.5, specific gravity 2.9–3.0)
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Origin and Etymology of eudialyte
German eudialyt, from Greek eudialytos easy to dissolve, from eu- + dialytos capable of being dissolved, from dialyein to dissolve
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