Chalcopyrite

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This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

The American Heritage® Dictionary of the English Language, 4th Edition
  • n. A yellow mineral, essentially CuFeS2, that is an important ore of copper. Also called copper pyrites.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • n. A yellow mineral that is a mixed sulfide of copper and iron, with the chemical formula CuFeS2.
  • the GNU version of the Collaborative International Dictionary of English
  • n. Copper pyrites, or yellow copper ore; a common ore of copper, containing copper, iron, and sulphur. It occurs massive and in tetragonal crystals of a bright brass yellow color.
  • The Century Dictionary and Cyclopedia
  • n. Copper pyrites, or yellow copper ore.
  • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • n. a yellow copper ore (CuFeS2) made up of copper and iron sulfide
  • Hypernym
    Words that are more generic or abstract
    mineral   
    Synonym
    Words with the same meaning