Definition of aeschynite in English:

aeschynite

(also eschynite)

noun

Mineralogy
  • A dark brown rock-forming mineral containing cerium, titanium, and niobium; now also more fully aeschynite-(Ce). Also: either of two related minerals, in which cerium and calcium are replaced either by yttrium, erbium, and calcium (more fully aeschynite-(Y)), or else by neodymium and cerium (more fully aeschynite-(Nd)).

Origin

Mid 19th century; earliest use found in Edinburgh Journal Science. From German Aeschynit from Swedish äschynit from ancient Greek αἰσχύνη shame, dishonour, disgrace + Swedish -it. The mineral is so named in allusion to the inability of chemical science, at the time of the discovery of the mineral, to isolate some of its constituents.

Pronunciation:

aeschynite

/ˈɛskɪnʌɪt/