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.

nephelinic

(ˌnɛfɪˈlɪnɪk) or

nephelinitic

adj
(Geological Science) geology containing or resembling nepheline, pertaining to nepheline