Ahmadjan Abduriyim, Hiroshi Kitawaki, Masashi Furuya, and Dietmar Schwarz
Identification and Durability of Lead Glass-Filled Rubies
Shane F. McClure, Christopher P. Smith, Wuyi Wang, and Matthew Hall
The Characterization of Tortoise Shell and Its Imitations
Thomas Hainschwang and Laurence Leggio
Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).
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