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GIA’s release of the Spring 2024 Gems & Gemology (G&G) issue marks the journal’s 90th anniversary. This issue presents research studies on colored stones and treatments, recaps the Tucson gem shows, spotlights an impressive garnet necklace and contains the annual G&G Challenge quiz. This and every issue of G&G since 1934 are available at no cost on GIA’s website at GIA.edu/gems-gemology.
Spring 2024 G&G feature articles include:
- Mineralogy and Geochemistry of Turquoise from Tianhu East, Xinjiang, China
Ling Liu, Mingxing Yang, Qiaoqiao Li, Yi Tang, Huilin Wen, Ye Yuan, Yan Li, and Jia Liu
Examines turquoise from northern China and identifies a geographic origin indicator to distinguish it from other Chinese sources.
- “Ice Jade” from Guatemala
Zhaoying Huang, Tao Chen, Jinyu Zheng, and Zebin Xu
Characterizes a translucent variety of jadeite jade from the Morales mine in Guatemala.
- Nanoscale Techniques for Characterizing Gemstone Coatings: A Case Study on Synthetic Moissanite
Tsung-Jen Wu, Sheng-Rong Song, Wen-Shan Chen, Wen Lin, and Chien-Tai Cheng
Provides a basis for analyzing colored coatings on a variety of polished gemstones.
G&G’s regular features include:
- Lab Notes provides the latest from GIA’s laboratory, including information about cloud inclusions causing blue color in diamonds.
- Micro-World showcases the internal features in gems, including shrinkage cracks in fire agate.
- Diamond Reflections explores the journey of superdeep diamonds to the earth’s surface.
- Gem News International recaps the Tucson 2024 gem shows and much more.
- In the Spotlight “Beyond Beauty: A Garnet Necklace Decoded”
Join the conversations on GIA’s Gems & Gemology Facebook group with an online community of more than 40,000 members: facebook.com/groups/giagemsgemology. Additional research articles are available at GIA.edu/gia-news-research.
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