What is the meaning of Tephrite?

(n.) An igneous rock consisting essentially of plagioclase and either leucite or nephelite or both.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). tephrite. Retrieved September 30, 2026, from http://smartdefine.org/tephrite/definitions/2071242
ChicagoWebster's. 2011. "tephrite" http://smartdefine.org/tephrite/definitions/2071242 (accessed September 30, 2026).
HarvardWebster's 2011, tephrite, Smart Define, viewed 30 September, 2026, <http://smartdefine.org/tephrite/definitions/2071242>.
MLAWebster's. "tephrite" 28 May 2011. Web. 30 September 2026. <http://smartdefine.org/tephrite/definitions/2071242>