Research Article Search Results
Metallic Chromium Inclusions in Industrial By-Product Ruby
Inclusions in technogenic ruby slag help to separate this material from other specimens, both natural and synthetic.
Iridescent Spondylus Pearl
Iridescence is seen in a porcelaneous pearl examined at the Carlsbad laboratory.
In Rainier’s Footsteps: Journey to the Chivor Emerald Mine
Chronicles the famed emerald source through the adventures of Peter W. Rainier, who directed the mine from 1926 to 1931 and restored its former glory.
Multiphase Fluid Inclusions in Blue Sapphires from the Ilmen Mountains, Southern Urals
Sapphires from Russia’s Ilmen State Reserve may provide insight into gem corundum from secondary placers.
The Fluid Art of Angela Conty
Angela Conty exhibits and discusses her work at the 2016 Tucson gem shows.
Summer 2016 G&G: Diamonds from Diavik, Responsible Sourcing, and Fabergé Cossack Figures
A summary of the content found in the Summer 2016 issue of Gems & Gemology.
HPHT and CVD Diamond Growth Processes: Making Lab-Grown Diamonds
Dr. James E. Shigley describes the means of distinguishing colorless and colored synthetic gem-quality diamonds from natural diamonds.
Montana’s Gem Mountain Sapphire Mine: Sharing the Excitement of Mining with the Public
Join a GIA field team on an expedition to Gem Mountain, Montana, and witness the rarely seen sapphire heat treatment process and tourists passionately searching for treasures to turn into cherished jewelry.
Tucson: A Showcase of Colored Gemstone Innovation
An overview of the Spring 2016 Gems & Gemology content.
Identification of “Pistachio” Colored Pearls Treated by Ballerina Pearl Co.
A report on the color treatment process for these intensely greenish yellow to yellowish green cultured pearls and the techniques for identifying them.
An Introduction to Photoluminescence Spectroscopy for Diamond and Its Applications in Gemology
Presents the underlying physics and methodology of this analytical technique, which has become an essential tool in identifying treated and synthetic diamonds.
