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Opal
Fireworks. Jellyfish. Galaxies. Lightning. Opal's shifting play of kaleidoscopic colors is unlike any other gem.
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Summer 1999 Gem News International
A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.
Summer 1985 G&G; Lab Notes
Spring 2003 Gem News International
A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.
Spring 2003 G&G; Lab Notes
Spring 2012 Gem News International
A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.
Spring 2004 G&G; Lab Notes
Spring 2007 Gem News International
A compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewelry manufacturing techniques, and industry trends.
Summer 1981 G&G Lab Notes
This section, from the Summer 1981 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Summer 1982 G&G; Lab Notes
Summer 1983 G&G Lab Notes
This section, from the Summer 1983 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
A New Type of Synthetic Fire Opal: Mexifire
This article describes a new type of synthetic fire opal marketed as “Mexifire.”
