bluestone Hear it!

bluestone definition

blue·stone (-stōn′)

noun

  1. ☆ a blue-gray sandstone that is easily split into thin slabs, used as flagstone
  2. copper sulfate
  3. chalcanthite

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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