noun Petrography.

a basaltic rock consisting essentially of pyroxene and plagioclase with nepheline or leucite.

Origin of tephrite

1875–80; < Greek tephr(ós) ash-colored + -ite1
Related formsteph·rit·ic [tef-rit-ik] /tɛfˈrɪt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for tephrite

Historical Examples of tephrite

British Dictionary definitions for tephrite



a variety of basalt containing plagioclase, augite, and a feldspathoid, commonly nepheline, or leucite
Derived Formstephritic (tɪˈfrɪtɪk), adjective

Word Origin for tephrite

C17: from Greek tephros, from tephra ashes; see -ite 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012