GIA Lab Reports on a New Cobalt Diffusion Treatment of Natural Spinel
Sudarat Saeseaw, Vararut Weeramonkhonlert, Charuwan Khowpong, Nattida Ng-Poorsatien and Supharat Sangsawong, Victoria Raynaud, and Claire Ito, June 11, 2015
Report on a new cobalt diffusion treatment of natural spinel, using analysis of inclusions, UV-Vis-NIR and EDXRF spectroscopy, and LA-ICP-MS.
Spring 2015 G&G Examines Blue Spinel, Chinese Jewellery Design and the Latest in Synthetics
Russell Shor, June 12, 2015
G&G Brief presents an overview of the content of the Spring 2015 issue of Gems & Gemology.
The Red Hot Gems of Summer
Sharon Bohannon, August 21, 2017
These red, pink and orange hued gems evoke passion and excitement – and are sure-fire accessories for sultry summer days.