
Spring 2000
The PDF version of this issue is available at no charge. Visit www.gia.edu Burmese Jade: The Inscrutable GemRichard W. Hughes, Olivier Galibert, George Bosshart, Fred Ward, Thet Oo, Mark Smith, Tay Thye Sun, and George E. Harlow Lapis Lazuli from the Coquimbo Region, ChileRobert R. Coenraads and Claudio Canut de Bon Spectroscopic Evidence of GE POL HPHT-Treated Natural Type IIa DiamondsDavid Fisher and Raymond A. Spits Purple to Purplish Red Chromium-Bearing TaaffeitesKarl Schmetzer, Lore Kiefert, and Heinz-Jürgen Bernhardt 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: 430002