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ZIRCON
Zircon is a colorful gem with high refraction and fire that’s unfairly confused with cubic zirconia.
See Gem As
Tools
Research
Gemstone Guidebook Project
A project coordinated by GIA and the NGO Pact provides a valuable educational tool to women miners in Tanzania.
Rex Guo: The Science and Art of Recutting Fine Gemstones
Reversible Color Modification of Blue Zircon by Long-Wave Ultraviolet Radiation
Determines whether blue zircon, inadvertently altered to brown by exposure to long-wave UV radiation, can be restored to its original color through the use of incandescent light.
Chemical Analysis of Zircon
Trace-element analysis is used to identify metamictization, treatment, and growth conditions of zircon.
Tenebrescent Zircon
Color modification is observed in a reddish orange zircon at the Bangkok laboratory.
Zircon from the Harts Range, Northern Territory, Australia
Gem-quality zircon from a relatively underdeveloped locality in the Harts Range of central Australia is described.
Sri Lanka: The Gem Island
An overview of the many types of gem-quality material, and its inclusions, currently found in Sri Lanka.
