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Definition of: zircon
(zûr′kon) noun
1. An adamantine, variously colored zirconium silicate, ZrSiO4. The transparent reddish variety, called hyacinth, is used as a gem, as are also the leaf-green, yellowish, colorless, or smoky varieties called jargon.
2. A variety of this mineral having an artificially produced steely-blue color of high brilliance and luster: esteemed as a gem. [<F zircone <Arabic zarqūn cinnabar <Persian zargūn golden <zar gold + gūn color]
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