Discover P.J. Joseph's blog, your guide to colored gemstones, diamonds, watches, jewelry, art, design, luxury hotels, food, travel, and more. Based in South Asia, P.J. is a gemstone analyst, writer, and responsible foodie featured on Al Jazeera, BBC, CNN, and CNBC. Disclosure: All images are digitally created for educational and illustrative purposes. Portions of the blog were human-written and refined with AI to support educational goals.
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Monday, November 02, 2020
Quench-Crackled Dyed Blue Chalcedony Resembling Larimar
GIA Lab Notes. Gem buyers beware. Standards tests should help identify Larimar. Advanced testing may be required to confirm the cause of blue color and the presence of polymer treatment.
Useful link: https://www.gia.edu/gems-gemology/summer-2020-labnotes-crackled-dyed-chalcedony
Labels:
Gems & Gemology,
GIA,
Lab Notes
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