The quarterly journal of the gemological institute of america
EDITORIAL
Tucson: A Showcase of Colored Gemstone Innovation
Duncan Pay, Editor-in-Chief
An overview of the Spring 2016 Gems & Gemology content.
Articles (5)
Chrysoberyl from the New England Placer Deposits, New South Wales, Australia
Examines a collection of chrysoberyl samples from these sapphire placer deposits to determine their distinct mineralogical and chemical properties.
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.
Gem-Quality Serpentine from Val Malenco, Central Alps, Italy
A detailed characterization of serpentine from this mountain locality, focusing on its use as a gem material.
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.
Variscite from Central Tajikistan: Preliminary Results
A look at the gemological properties and chemical composition of this light blue to light green to green gem material, which is suitable for cabochon cutting.
Regular Features
GEM NEWS INTERNATIONAL
Global coverage of gem sources, notable new gem materials, and recent industry developments.
THE DR. EDWARD J. GÜBELIN
MOST VALUABLE ARTICLE AWARD
Ziyin Sun, Aaron C. Palke, and
Nathan Renfro
The Chinese Soul in Contemporary Jewelry Design
Andrew Lucas, Merilee Chapin,
Moqing Lin, and Xiaodan Jia
Splendor in the Outback: A Visit to Australia’s Opal Fields
Tao Hsu, Andrew Lucas, and,
Vincent Pardieu
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