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Amber
Amber is nature’s time capsule. This fossilized tree resin contains remnants of life on earth millions of years ago.
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Fall 2011 Gem News International
Spring 1981 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 1982 Gem News International
Spring 1983 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.
Winter 2004 Gem News International
Coloring of Topaz by Coating and Diffusion Processes: An X-Ray Photoemission Study of What Happens Beneath the Surface
Surface-treated topaz has become a viable alternative to topaz colored by irradiation.
Summer 2008 Gem News International
Fall 1981 Gem News International
The Radioactive Decay Pattern of Blue Topaz Treated by Neutron Irradiation
A systematic study of 15 neutron-irradiated blue topaz samples was conducted using high-purity germanium (HPGe) digital gamma-ray spectroscopy.
Summer 1987 G&G; Lab Notes
This section, from the Summer 1987 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Fall 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.
