nepheline

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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.

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]

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]
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