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gneissic
Variant of gneiss
noun
a coarsegrained, metamorphic rock resembling granite, consisting of alternating layers of different minerals, such as feldspar, quartz, mica, and hornblende, and having a banded appearance
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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