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Meaning of colemanite

cole•man•ite

Pronunciation: (kōl'mu-nīt"), [key]
— n.
  1. a mineral, hydrous calcium borate, CaBO&multiplydot;5HO, occurring in colorless or milky-white crystals.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.