Article Search Results

Show Filters
Showing 25 results for "������������������������������2���"
Winter 1994 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, jewellery manufacturing techniques and industry trends.

Read More

Spessartine Garnet from Ramona, San Diego County, California

For most of the 20th century, the principal source of fine spessartine was the area around the Little Three mine near the town of Ramona in southern California.

Read More

Abstracts; Summer 1991

From the Summer 1991 issue of Gems & Gemmology, a summary of important gemmology-related articles published in other journals.

Read More

Summer 1996 G&G Lab Notes

This section, from the Summer 1996 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

Read More

Wavers with calculated color panels.
Pyrope-Spessartine Colour-Change Garnet with a High Grossular Component

A colour change in rough garnet is observed and plotted in GIA’s Carlsbad lab.

Read More

Abstract Header from the 2009 issue of Gems & Gemology
Abstracts; Summer 2009

This article, from the Summer 2009 issue of Gems & Gemmology, is a compilation of abstracts of important gemmology-related articles published outside of Gems & Gemmology.

Read More

Summer 1988 G&G Lab Notes

This section, from the Summer 1988 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

Read More

Garnets from Madagascar with a Colour Change of Blue-Green to Purple

Gemmological, chemical, spectroscopic and microscopic properties of blue-green colour-change garnets from a new deposit near Bekily, Madagascar, are given.

Read More

Summer 2004 G&G Lab Notes

This section, from the Summer 2004 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

Read More

Summer 2003 G&G Lab Notes

This section, from the Summer 2003 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

Read More