Winter 2021

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Feature articles from this issue: Blue Sapphires from Mogok, Myanmar: A Gemological Review by Wasura Soonthorntantikul, Ungkhana Atikarnsakul, and Wim Vertriest Gemological Charact erization of Peridot From Pyaung-Gaung in Mogok, Myanmar by Montira Seneewong-Na-Ayutthaya, Wassana Chongraktrakul, and Tasnara Sripoonjan History of Emerald Mining in the Habachtal Deposit of Austria, Part I by Karl Schmetzer GIA students and alumni save 10% on back issues! Enter coupon code GGALUM at checkout. Usually ships in 3-5 business days. SKU: 4302101 Show more