eucolite

== English == === Etymology === From Ancient Greek εὔκολος (eúkolos, “easily satisfied”) +‎ -ite, relating to the etymology for eudialyte. === Noun === eucolite (countable and uncountable, plural eucolites) (mineralogy) An optically negative variety of eudialyte. === Further reading === “eucolite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.