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  • Cover of Gems & Gemology Summer 2023 issue, featuring fire obsidian cut by Tom Dodge.

    Summer 2023

    • $15.00

    Feature articles from this issue:

    • Color Modification of Spinel by Nickel Diffusion: A New Treatment by Michael Jollands, Abadie Ludlam, Aaron C. Palke, Wim Vertriest, Shiyun Jin, Pamela Cevallos, Sarah Arden, Elina Myagkaya, Ulrika D’Haenens-Johannson, Vararut Weeramongkhonlert, and Ziyin Sun
    • Gem-Quality Augite from Dong Nai, Vietnam by Le Ngoc Nang, Lam Vinh Phat, Pham Minh Tien, Pham Trung Hieu, Kenta Kawaguchi, and Pham Minh
    • Origins of Color in Brown Mammoth Ivory by Zhaoying Huang, Tao Chen, Jinyu Zheng, Duo Wang, and Xing Xu

    GIA students and alumni save 10% on back issues! Enter coupon code GGALUM at checkout.

    Usually ships in 3-5 business days.

    SKU: 9302302