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cobalt diffusion of natural spinel: a report describing a new treatment on the gem market

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by Sudarat Saeseaw, Vararut Weeramonkhonlert, Charuwan Khowpong, Nattida Ng-Pooresatien and Supharat Sangsawong and Claire Ito

(first published on 2015, June 4th) Recently (May 2015) several unusual looking faceted spinels were submitted to GIA’s New York, Carlsbad, and Bangkok identification laboratories. At the same time…

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Cobalt Diffusion of Natural Spinel: a report describing a new treatment on the gem market

by Sudarat Saeseaw, Vararut Weeramonkhonlert, Charuwan Khowpong, Nattida Ng-Pooresatien and Supharart Sangsawong and Claire Ito
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