What is the meaning of Ceylanite?

(n.) A dingy blue or grayish black, variety of spinel. It is also called pleonaste.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). ceylanite. Retrieved October 2, 2026, from http://smartdefine.org/ceylanite/definitions/1986039
ChicagoWebster's. 2011. "ceylanite" http://smartdefine.org/ceylanite/definitions/1986039 (accessed October 2, 2026).
HarvardWebster's 2011, ceylanite, Smart Define, viewed 2 October, 2026, <http://smartdefine.org/ceylanite/definitions/1986039>.
MLAWebster's. "ceylanite" 27 May 2011. Web. 2 October 2026. <http://smartdefine.org/ceylanite/definitions/1986039>