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pegmatite: Meaning and Definition of

peg•ma•tite

Pronunciation: (peg'mu-tīt"), [key]
— n. Petrol.
  1. a coarsely crystalline granite or other high-silica rock occurring in veins or dikes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
Pegler peg top
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