Spring 2011

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The PDF version of this issue is available at no charge. Visit www.gia.edu Demantoid and Topazolite from Antetezambato, Northern Madagascar: Review and New Data Federico Pezzotta, Ilaria Adamo, and Valeria Diella The Chinese Red Feldspar Controversy: Chronology of Research Through July 2009 George R. Rossman UV-Vis-NIR Reflectance Spectroscopy of Natural-Color Saltwater Cultured Pearls from Pinctada Margaritifera Stefanos Karampelas, Emmanuel Fritsch, Jean-Pierre Gauthier, and Thomas Hainschwang Brownish Red Zircon from Muling, China Tao Chen, Hao Ai, Mingxing Yang, Shu Zheng, and Yungui Liu Aquamarine from the Thuong Xuan District, Thanh Hoa Province, Vietnam Le Thi-Thu Huong, Wolfgang Hofmeister, Tobias Hâger, Nguyen Ngoc 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: 4301102 Show more