The quarterly journal of the gemological institute of america
EDITORIAL
Challenges and Opportunities
Duncan Pay, Editor-in-Chief
An overview of the Summer 2014 issue of Gems & Gemology, plus thoughts
on the journal's future.
Articles (4)
Color Phenomena of Blue Amber
Investigates the presence of fluorescence, rather than iridescence, as the cause of color in blue amber from the Dominican Republic and Indonesia.
Botswana’s Scintillating Moment
Examines the history of diamond production in Botswana and the long-term outlook for beneficiation through value-added industries.
Three-Phase Inclusions in Emerald and Their Impact on Origin Determination
The role of three-phase inclusions in emerald, combined with spectroscopy and trace-element analysis, in determining geographic origin.
Experimental Studies on the Heat Treatment of Baltic Amber
Amber samples were heat-treated, using various procedures and parameters, in an effort to reproduce materials found in the jewelry market.
Regular Features
GEM NEWS INTERNATIONAL
Global coverage of gem sources, notable new gem materials, and recent industry developments.
GEMOLOGICAL ABSTRACTS
Summaries of important gem and jewelry articles recently published elsewhere.
THE DR. EDWARD J. GÜBELIN
MOST VALUABLE ARTICLE AWARD
Recent Advances in Understanding the Geology of Diamonds
Steven B. Shirey and James E. Shigley
THE ARCHIVE
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