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nepheline
(redirected from nephelinic)

   Also found in: Dictionary/thesaurus, Wikipedia 0.07 sec.

nepheline

 or nephelite

Most common feldspathoid mineral, an aluminosilicate of sodium and potassium (Na3KAl4Si4O16). It is sometimes used as a substitute for feldspars in the manufacture of glass and ceramics.


nepheline [′nef·ə‚lēn]
(mineralogy)
A mineral of variable composition, with its purest state represented by the formula NaAlSiO4; calcium, magnesium, iron (Fe2+and Fe3+), and titanium are usually present in only minor or trace amounts.


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