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nephelineOne entry found. Main Entry: neph·e·line Pronunciation: \ˈne-fə-ˌlēn\ Variant(s): also neph·e·lite \-ˌlīt\ Function: noun Etymology: French néphéline, from Greek nephelē cloud — more at nebula Date: circa 1814 : a hexagonal mineral that is a usually glassy crystalline silicate of sodium, potassium, and aluminum common in igneous rocks — neph·e·lin·ic \ˌne-fə-ˈli-nik\ adjective
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