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Summer 2004, Volume 40, Issue 2

EDITORIAL

The Results of Our First Reader Survey p.103

LETTERS

An Old Technique to Solve a New Problem? p.105

FEATURE ARTICLES

Gem Treatment Disclosure and U.S. Law p.106-p.127
Thomas W. Overton
Lab-Grown Colored Diamonds from Chatham Created Gems p.128-p.145
James E. Shigley, Shane F. McClure, Christopher M. Breeding, Andy Hsi-tien Shen, and Samuel M. Muhlmeister
The 3543 cm^-1 Infrared Absorption Band in Natural and Synthetic Amethyst and Its Value in Identification p.146-p.161
Vladimir S. Balitsky, Denis V. Balitsky, Galina V. Bondarenko, and Olga V. Balitskaya

REGULAR FEATURES

Lab Notes p.162-p.169
Featured Lab Note: Diamond Fracture Filled to Alter Color and Enhance Clarity p.163
Gem News International p.170-p.181
Featured Gem News International: Recent U.S. Patents for Diamond Fingerprinting Methods p.175-p.177
Book Reviews p.183-p.184
Gemological Abstracts p.185-p.196

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