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Nov 30, 2009
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moon•stone



Pronunciation: (mOOn'stōn"), [key]
n.
1. Also called precious moonstone. a semitransparent or translucent, opalescent, pearly-blue variety of adularia, used as a gem.
2. any of several adularescent feldspars, as certain varieties of albite, labradorite, or oligoclase, used as gems.
3. (not used technically) any milky or girasol stone used as a gem.

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

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