'Ceylanite' definitions:

Definition of 'Ceylanite'

From: GCIDE
  • Ceylanite \Cey"lan*ite\, n. [F., fr. Ceylan Ceylon.] (Min.) A dingy blue, or grayish black, variety of spinel. It is also called pleonaste. [Written also ceylonite.] [1913 Webster]