Menu

Gemworld International

Product added. View Cart ›
Shop Account

Heat Treatment Experiments of Corundum – Development of a Before/After Collection

Posted on July 1, 2020 by Tom Stephan, M.Sc., FGG, EG, Benjamin Huaysan, M.Sc. & Stefan Müller, M.Sc.

Featured Articles
Color modification of ruby and sapphire by heat treatment processes has a long tradition in the gemstone industry. First written reports by Bhojarajah and Al Beruni date back to the 11th century (see Hughes, 2017),while…

GemWorld articles are accessible by GemGuide members only. To access our archive of articles and get many other great features and benefits, become a member now!

Become a member