Summer 2009

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The PDF version of this issue is available at no charge. Visit www.gia.edu Celebrating 75 Years of Gems & Gemology Stuart Overlin and Dona M. Dirlam The "Type" Classification Syste m of Diamonds and Its Importance in GemologyChristopher M. Breeding and James E. Shigley Spectral Differentiation Between Copper and Iron Colorants in Gem TourmalinesPaul B. Merkel and Christopher M. Breeding Gem-Quality Andalusite from BrazilShyamala Fernandes and Gagan Choudhary Characterization of Peridot from Sardinia, ItalyIlaria Adamo, Rosangela Bocchio, Alessandro Pavese, and Loredana Prosperi 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: 430903 Show more