nephelinic


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neph·e·line

 (nĕf′ə-lēn′, -lĭn) also neph·e·lite (-līt′)
n.
A mineral of sodium-aluminum or potassium-aluminum silicate, occurring worldwide in igneous rocks and used in the manufacture of ceramics and enamels.

[From Greek nephelē, cloud (because its fragments become cloudy when placed in nitric acid); see nebh- in Indo-European roots.]

neph′e·lin′ic (-lĭn′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

nephelinic

(ˌnɛfɪˈlɪnɪk) or

nephelinitic

adj
(Geological Science) geology containing or resembling nepheline, pertaining to nepheline
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014