Meaning of feldspar

feld•spar

Pronunciation: (feld'spär", fel'-), [key]

— n.

any of a group of minerals, principally aluminosilicates of potassium, sodium, and calcium, characterized by two cleavages at nearly right angles: one of the most important constituents of igneous rocks.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

See also:

feldspar (Thesaurus)

Feldene feldspathic

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