The Collaborative International Dictionary
Eschynite
Eschynite \Es"chy*nite\, n. [Gr. ? shame.] (Min.) A rare mineral, containing chiefly niobium, titanium, thorium, and cerium. It was so called by Berzelius on account of the inability of chemical science, at the time of its discovery, to separate some of its constituents.
Wiktionary
eschynite
n. (context mineral English) A rare mineral, containing chiefly niobium, titanium, thorium, and cerium.