zircon

  1. Noun.  (uncountable) A mineral occurring in tetragonal crystals, usually of a brown or grey colour and consisting of silica and zirconia.
  2. Noun.  (countable) A crystal of zircon, sometimes used as a false gemstone.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.