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Zircon   Listen
noun
Zircon  n.  
1.
(Min.) A mineral consisting predominantly of zirconium silicate (Zr2SiO4) occurring in tetragonal crystals, usually of a brown or gray color. It consists of silica and zirconia. A red variety, used as a gem, is called hyacinth. Colorless, pale-yellow or smoky-brown varieties from Ceylon are called jargon.
2.
An imitation gemstone made of cubic zirconia.
Zircon syenite, a coarse-grained syenite containing zircon crystals and often also elaeolite. It is largely developed in Southern Norway.






Collaborative International Dictionary of English 0.48








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"Zircon" Quotes from Famous Books



... on the scale within the instrument the refractive index, as it is called, of any precious stone that is not too highly refractive. (Its upper limit is 1.80. This would exclude very few stones of importance, i. e., zircon, diamond, sphene, and ...
— A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public • Frank Bertram Wade



Words linked to "Zircon" :   mineral, jargoon, jargon, zirconium silicate, jacinth



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