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Tourmaline
Tourmalines have a variety of exciting colors with one of the widest color ranges of any gem.
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Winter 2008 G&G; Lab Notes
This section, from the Winter 2008 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Winter 2005 Gem News International
Abstracts; Winter 2009
This article, from the Winter 2009 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.
Abstracts; Winter 2010
This article, from the Winter 2010 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.
Summer 2008 Gem News International
Fall 1981 Gem News International
Fall 2000 G&G; Lab Notes
Fall 2001 Gem News International
Fall 2003 Gem News International
Fall 2004 G&G; Lab Notes
This section, from the Fall 2004 issue of Gems & Gemology, is a compilation of interesting finds from GIA's laboratories.
