Dictionary


zir•con



Pronunciation: (zûr'kon), [key]
—n.
a common mineral, zirconium silicate, ZrSiO4, occurring in small tetragonal crystals or grains of various colors, usually opaque: used as a refractory when opaque and as a gem when transparent.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

Zircoloyzirconium
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