'Zircon' definitions:
Definition of 'zircon'
From: WordNet
noun
A common mineral occurring in small crystals; chief source of zirconium; used as a refractory when opaque and as a gem when transparent [syn: zircon, zirconium silicate]
Definition of 'Zircon'
From: GCIDE
- Zircon \Zir"con\, n. [F., the same word as jargon. See Jargon a variety of zircon.]
- 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. [1913 Webster +PJC]
- 2. an imitation gemstone made of cubic zirconia. [PJC]
- Zircon syenite, a coarse-grained syenite containing zircon crystals and often also elaeolite. It is largely developed in Southern Norway. [1913 Webster]