mineral
Cubic Zirconia
Zirconium Dioxide (ZrO2)
AI-generated identification · may be incorrectHardness: 8-8.5 Mohs scale; Color: typically colorless/clear; Luster: adamantine to brilliant; Crystal structure: isometric/cubic; Specific gravity: 5.6-6.0.
- Hardness
- 8-8
- Color
- typically colorless/clear
- Luster
- adamantine to brilliant
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Physical properties
Hardness: 8-8.5 Mohs scale; Color: typically colorless/clear; Luster: adamantine to brilliant; Crystal structure: isometric/cubic; Specific gravity: 5.6-6.0.
Formation & geological history
While naturally occurring as baddeleyite, jewelry-grade cubic zirconia is synthetically grown in laboratories using the skull melting process, where a cold crust of the material acts as a crucible for the molten center.
Uses & applications
Primarily used as a diamond stimulant in jewelry (pendants, rings, earrings). Also used in industrial applications for precision cutting and heat-resistant components.
Geological facts
First synthesized in 1970 by Soviet scientists, it is much heavier than a natural diamond (about 1.7 times the weight for the same volume) and lacks the natural inclusions found in most earth-mined stones.
Field identification & locations
Identify by its excessive rainbow-colored 'fire' (dispersion) which is higher than diamond, and its rapid heat conduction. Often found in retail jewelry stores under brand names like CZ.
