Category:Zircon

Zir"con, n. Etym: [f., the same word as jargon. See jargon a variety Of zircon.] (min.)

Defn: a mineral 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. Zircon syenite, a Coarse-grained syenite containing zircon crystals and often also Elæolite. It is largely developed in southern norway.