Search Results

Show Filters
Showing 29 results for "red beryl"
The First-Order Red Compensator: An Effective Gemological Tool

The many gemological applications of the first-order red compensator.

Read More
Irradiated Topaz and Radioactivity

Large quantities of colorless topaz are currently being treated by gamma irradiation to turn them blue.

Read More
Nephrite from Luodian, China
Gem Characterization

Poster abstracts on “Gem Characterization” from GIA’s 2018 International Gemological Symposium.

Read More
Bicolor topaz with white fluorite inclusions from Ukraine
Gem Localities and Formation

Abstracts of speaker presentations from the “Gem Localities and Formation” session of GIA’s 2018 International Gemological Symposium.

Read More
Emerald crystals from Colombia, Afghanistan, and Zambia
Photoluminescence Spectra of Emeralds from Colombia, Afghanistan, and Zambia

Compares PL spectroscopy data of 48 emerald samples from three countries to evaluate the usefulness of the technique in geographic origin determination.

Read More
Synthetic Emeralds
Confocal Micro-Raman Spectroscopy: A Powerful Tool to Identify Natural and Synthetic Emeralds

More than 300 natural and synthetic emeralds from various sources were examined with confocal Raman spectroscopy.

Read More
Abstracts; Spring 1991

This article, from the Spring 1991 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.

Read More
Abstracts; Summer 1991

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

Read More
Abstracts; Spring 2009

This article, from the Spring 2009 issue of Gems & Gemology, is a compilation of abstracts of important gemology-related articles published outside of Gems & Gemology.

Read More
Abstract Header from the 2009 issue of Gems & Gemology
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.

Read More