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Showing posts with label Opal Treaments. Show all posts
Showing posts with label Opal Treaments. Show all posts

Sunday, August 20, 2023

A New Treatment: Creating Phantom Structure In Opal

A must read for practicing gemologists, opal dealers, jewelers and consumers. Many thanks to gemologists and analysts in Vietnam and Gems & Gemology team for the insightful report.


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