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.

See also:

Infoplease Tools

Video Library

A large collection of informational and educational videos from animals and landmarks to language arts and history.
Almanacs

A vast compendium of statistics and up-to-date facts and figures, on everything you need to know.
Dictionary

An unabridged dictionary from aalii to zymurgy, including a pronunciation guide.
Atlas

An atlas featuring maps and detailed profiles of all 193 countries and the 50 U.S. states.
Encyclopedia

A current and comprehensive encyclopedia covering all the major branches of knowledge from astrophysics to Zimbabwe.