- a whitish mineral consisting of sodium aluminum silicate or potassium aluminum silicate in crystalline form
Found on http://www.webdictionary.co.uk/definition.php?query=nepheline
a whitish mineral consisting of sodium aluminum silicate or potassium aluminum silicate in crystalline form; used in the manufacture of ceramics and enamels
Found on http://wordnetweb.princeton.edu/perl/webwn?s=nepheline
• (n.) Alt. of Nephelite • (n.) Alt. of Nephelite
Found on http://thinkexist.com/dictionary/meaning/nepheline/
the most common feldspathoid mineral, an aluminosilicate of sodium and potassium [(Na,K)AlSiO4]. It is sometimes used as a substitute for feldspars ... [4 related articles]
Found on http://www.britannica.com/eb/a-z/n/25
nepheline A double silicate of aluminium and sodium, occurring chiefly in volcanic deposits in Italy. So named because its fragments are rendered cloudy by immersion in nitric.
Found on http://www.wordinfo.info/words/index/info/view_unit/1384/
Nepheline is a mineral that has the formulae (Na,K)AlSiO4 and a relative hardness of 6. It is formed mainly in pegmatite associated with nepheline syenite, but may also occur in gneiss and schist. Nepheline is associated with feldspars, calcite, cancrinite, hornblende and sodalite.
Found on http://www.probertencyclopaedia.com/browse/HN.HTM
Nepheline, also called nephelite (from Greek: νεφέλη, `cloud`), is a feldspathoid: a silica-undersaturated aluminosilicate, Na3KAl4Si4O16, that occurs in intrusive and volcanic rocks with low silica, and in their associated pegmatites. Nepheline crystals are rare and belong to the hexagonal system, usually having the form of a short, six-s..
Found on http://en.wikipedia.org/wiki/Nepheline
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