Encyclopedia > Cubic zirconia

Article Content

Cubic zirconia

Cubic Zirconia, CZ for short, is a synthetic gem composed of zirconium oxide, ZrO₂. It has a cubic crystal system[?], a refractive index of 2.15-2.18, dispersion of 0.065 (high), specific gravity of 5.6-6, hardness of 8.5, an adamantine lustre, yellow-green to yellow luminescence in short wave ultraviolet light and whitish luminescence in long wave ultraviolet.

Zirconium is quite refractory, thus a special mechanism called a skull crucible is used to produce cubic zirconium.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Sanskrit language

... necessarily all distinct) zero, guna[?], and vrdhii[?] grades. If V is the vowel of the zero grade, the guna grade vowel is traditionally thought of a V + a, and the vrdhii ...