chalcocite Hear it!

chalcocite definition

chal·co·cite (kal′kə sīt′)

noun

a dark-gray, lustrous mineral, CuS, that is an ore of copper; cuprous sulfide

Etymology: see chalco-

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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