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Alexandrite
Green in sunlight. Red in lamplight. Color-changing alexandrite is nature’s magic trick.
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Research
Three-Phase Inclusion in Alexandrite
Examination of alexandrite reveals three phases of matter within a single inclusion suite.
The Distinction of Natural from Synthetic Alexandrite by Infrared Spectroscopy
A useful way to identify stones that contain no distinguishing inclusions.
Spring 1999 G&G; Lab Notes
This section, from the Spring 1999 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Fluorite in Brazilian Alexandrite
An octahedral fluorite crystal is observed in Brazilian alexandrite.
Spring 1983 G&G; Lab Notes
Spring 1993 G&G Lab Notes
This section, from the Spring 1993 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Spring 1995 G&G; Lab Notes
Winter 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 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.
