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Pronunciation varies by accent · noun
(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..
Use nepheline when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Nepheline means (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..
Common synonyms include nephelite.
The opposite depends on the specific sense.
Use nepheline where its definition matches the intended context.
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