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ironstone: Meaning and Definition of

i•ron•stone

Pronunciation: (ī'urn-stōn"), [key]
— n.
  1. any iron-bearing mineral or rock with siliceous impurities.
  2. a hard white stoneware.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
iron sponge iron sulfate
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