nepheline
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See also: néphéline
English[edit]
Etymology[edit]
From Ancient Greek νεφέλη (nephélē, “cloud”), because crystals become cloudy when exposed to acid, + -ine.
Noun[edit]
nepheline (countable and uncountable, plural nephelines)
- (mineralogy) A feldspathoid mineral of silica-poor igneous, plutonic and volcanic rocks. Chemically, nepheline is a plagioclase feldspar with insufficient silica to satisfy the chemical bonds. Because of the unfilled bonds, nepheline weathers rapidly and can only be seen as inclusions in freshly broken rock.
Synonyms[edit]
Derived terms[edit]
Translations[edit]
feldspathoid mineral
Further reading[edit]
- David Barthelmy (1997–2024) “Nepheline”, in Webmineral Mineralogy Database.
- “nepheline”, in Mindat.org[1], Hudson Institute of Mineralogy, 2000–2024.