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pegmatitic
Variant of pegmatite
noun
a light-colored, coarsegrained, intrusive igneous rock, usually granitic, containing large crystals of quartz, feldspar, and mica, and sometimes rare minerals: typically found in fissures of other igneous rocks
Related Forms:
- pegmatitic adjective
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
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