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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

Studiopjj

Monday, November 02, 2020

Quench-Crackled Dyed Blue Chalcedony Resembling Larimar

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