Spring 2008

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The PDF version of this issue is available at no charge. Visit www.gia.edu Copper-Bearing (ParaÌba-type) Tourmaline from Mozambique Brendan M. Laurs, J. C. (Hanco) Zwaan, Christoph er M. Breeding, William B. (Skip) Simmons, Donna Beaton, Kenneth F. Rijsdijk, Riccardo Befi, and Alexander U. Falster A History of Diamond TreatmentsThomas W. Overton and James E. Shigley Natural-Color Purple Diamonds from Siberia Sergey V. Titkov, James E. Shigley, Christopher M. Breeding, Rimma M. Mineeva, Nikolay G. Zudin, and Aleksandr M. Sergeev Every issue also includes the most up-to-date reports from the GIA Laboratory (Lab Notes) and gemologists around the world (Gem News International).GIA students and alumni save 10% on back issues! Enter coupon code GGALUM at checkout. Usually ships in 3-5 business days. SKU: 430802 Show more