ceylanite


From The Collaborative International Dictionary of English v.0.48:

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]
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