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Spring 1986 G&G Lab Notes
This section, from the Spring 1986 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Spring 1987 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 1990 G&G; Lab Notes
Spring 1991 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 1992 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 1992 G&G; Lab Notes
Sugar/Heat-Treated Opal
At the AGTA show, lapidarist James Carpenter explains his use of sugar/heat treatment to enhance opal.
Hyalite with Magnificent Internal Features
Pronounced cubic cavities, sometimes containing fluorite, are observed in a rare hyalite sample.
Abstracts; Summer 2009
This article, from the Summer 2009 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.
A New Type of Synthetic Fire Opal: Mexifire
This article describes a new type of synthetic fire opal marketed as “Mexifire.”
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.
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