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Jade
“Jade” is a generic term for nephrite, jadeite, and under certain conditions green omphacite. In China, a pierced jade disk is a symbol of heaven.
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Tools
Research
Jadeite With High Albite Content
Filled Calcite with Pronounced Phosphorescence
A sphere with a greasy luster exhibiting strong phosphorescence is investigated.
GIA Museum Exhibits in New York
A brief look at GIA's permanent museum exhibit at the New York lab and campus.
Dyed Bone as a Red Coral Imitation
A specimen presenting as red coral is revealed to be dyed bone.
Shattuckite from the DRC
Rare shattuckite from the Democratic Republic of Congo, as seen at the Tucson Gem and Mineral Show.
Abstracts; Fall 2010
Abstracts; Spring 2010
This article, from the Spring 2010 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.
Spring 1998 G&G; Lab Notes
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.
Summer 2001 G&G; Lab Notes
Summer 2002 G&G; Lab Notes
This section, from the Summer 2002 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Summer 2003 G&G; Lab Notes
This section, from the Summer 2003 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
