nepheline


Also found in: Thesaurus, Encyclopedia, Wikipedia.
Related to nepheline: analcime, Cancrinite, leucite, Nepheline syenite

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.

nepheline

(ˈnɛfɪlɪn; -ˌliːn) or

nephelite

n
(Minerals) a whitish mineral consisting of sodium potassium aluminium silicate in hexagonal crystalline form: used in the manufacture of glass and ceramics. Formula: (Na,K)(AlSi)2O4
[C19: from French néphéline, from Greek nephelē cloud, so called because pieces of it become cloudy if dipped in nitric acid]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

neph•e•line

(ˈnɛf ə lɪn)

also neph•e•lite

(-ˌlaɪt)

n.
a feldspathoid mineral, sodium potassium aluminum silicate, Na3KAl4Si4O16, occurring in basaltic lavas.
[1805–15; < French]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.nepheline - a whitish mineral consisting of sodium aluminum silicate or potassium aluminum silicate in crystalline form; used in the manufacture of ceramics and enamels
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
nephelinite - an igneous rock consisting of nepheline and pyroxene
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
RUSAL is a completely vertically intergrated aluminium company with assets right through the production process--from bauxite and nepheline ore mines to aluminium smelters and foil mills.
We provide acrylics, styrene-acrylics, urethanes, urethane prepolymers, epoxies, VAEs, cellulosic ethers, fatty acids, fire retardants, fumed silica, polyvinylpyrrolidones, polyisocyanates, blocked isocyanates, silanes, nepheline syenites, amines, MDI/ TDI, mercaptans, polyamides, polyetheramines, attapulgite clay, talc, kaolin clay, calcium carbonate, zinc oxide, titanium dioxide, carbon black, acrylic polyols, acrylate monomers, alkyds, hydrocarbon resins, melamine formaldehydes, polybutadienes, polyester polyols, polyvinyl acetates, polyvinyl ethers, styrene butadienes, styrene maleic anhydrides, and vinyl chlorides.
The constituent rocks majorly include alkali granites, syenites, nepheline syenites, carbonatites and albitites, all known as the major producers for REE bearing deposits.
Nepheline Syenite 56.3% Gerstley Borate 12.5% Calcium Carbonate 10.4% Silicon Dioxide 20.8% Cobalt carbonate
For example, rocks containing nepheline are considered more effective in improving soil productivity than those containing K-feldspar (Manning 2010).
The sintering process mainly uses soda lime to sinter the raw materials involving bauxite, nepheline, and Bayer red mud, and its tailing is sintering red mud.
Igneous bodies in the Wanikande-Wanakom area include dioritic rocks, micrograbbros, nepheline syenites, dolerites, basaltic sills, nephelinites, trachytes, and pyroclastics.
The low concentration of soluble [K.sub.2]O present in the phonolite may be due to the predominance of some constituent minerals such as: microcline (KAI[Si.sub.3][O.sub.8]), orthoclase (KAI[Si.sub.3][O.sub.8]), andesine [(Na,Ca)[(Si,Al).sub.4][O.sub.8]] and e nepheline [(Na, K) AlSi[O.sub.4]] (Teixeira et al., 2012), where K is retained by covalent bonds in the crystalline network of the mineral, presenting low K release to the soil solution (Martins et al., 2008).
Other extender pigments noted in commercial products include Nepheline Syenite, Kaolin, calcium carbonate, and, while not a traditional coating extender, ground tire rubber.
1) has been known as a collecting locality for specimens of cancrinite, sodalite, nepheline, and lepidomelane (Fe-rich biotite).
The igneous activity in the Pripyat rift terminated after the extrusion of nepheline leucitites which are intercalated with Upper Frasnian-Upper Famennian sediments (370-359 Ma; Kusznir et al.