Feature articles from this issue:

• Laboratory-Grown Diamonds: An Update on Identification and Products Evaluated at GIA by Sally Eaton-Magaña, Matthew F. Hardman, and Shoko Odake

• Gemological and Trace Element Characteristics of Cassiterite from Yunling, China by Wenqing Huang, Jungui Zhou, Ting Shui, Junyi Pan, Fanwei Meng, Rui Zuo, Shuxin Dong, and Suqiao Cao

• Gem-Quality Anorthoclase Feldspar from Southeast Vietnam by Le Ngoc Nang, Pham Minh Tien, Pham Minh, and Pham Trung Hieu

• Micro-Features of Tourmaline by Nathan Renfro, Tyler Smith, John I. Koivula, Shane F. McClure, and James E. Shigley

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SKU: 930-2402