[ nef-uh-luh-nahyt ]
/ ˈnɛf ə ləˌnaɪt /
a fine-grained, dark rock of volcanic origin, essentially a basalt containing nepheline but no feldspar and little or no olivine.
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OTHER WORDS FROM nepheliniteneph·e·li·nit·ic [nef-uh-luh-nit-ik] /ˌnɛf ə ləˈnɪt ɪk/, adjective
Words nearby nephelinite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for nephelinite
They are chiefly leucite and nepheline rocks, such as leucitite, leucitophyre and nephelinite, but basalt and trachyte also occur.
British Dictionary definitions for nephelinite
/ (ˈnɛfɪlɪˌnaɪt) /
a fine-grained basic laval rock consisting of pyroxene and nepheline
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