Lab Notes Gems & Gemology, Volume 45, No. 3

Fall 2009 G&G Lab Notes


Fancy Red Irradiated and Annealed Diamond
Diamond With Hydrogen Cloud and Etch Channels
Large Type Ib Yellow Diamond Colored by Isolated Nitrogen
Patterned Green Radiation Stains in Diamond
Pumpellyite in Quartz
A Useful Technique to Identify Negative Crystals in Ruby
“Textbook” Columbite in Topaz
 
To view the full section, download the PDF above.           

You are being redirected to GIA Alumni Association, LLC.

5