Lab Notes Gems & Gemology, Summer 1994, Volume 30, No. 3

Summer 1994 G&G Lab Notes


Diamond Laser Drill Holes or Natural Inclusions?
Diamond with Unusual Color Zoning
Trapiche Emerald from a New Locality
Jadeite with Metallic Inclusions
Round and Near-Round Freshwater Tissue-Nucleated Cultured Pearls
Glass-Coated Quartz
Synthetic Sapphire with a Small Star
Sapphires from Yogo Gulch, Montana
Dyed and Impregnated Turquoise
Faceted Vayrynenite
 
To view the full section, download the PDF above.

You are being redirected to GIA Alumni Association, LLC.

5