Low-temperature heat treatment experiments on Burmese ruby.
A Canary in the Ruby Mine: Low-Temperature Heat Treatment Experiments on Burmese Ruby
by Lotus Gemology's Billie Hughes
One of the challenges facing gemologists today is the rise of low temperature heat treatment in ruby and sapphire. Lotus Gemology's Billie Hughes and GIA's Wim Vertriest have conducted heat treatment experiments on Burmese ruby to record changes that can aid gemologists in treatment detection. In this talk, Billie Hughes shares the data from these experiments, including before-and-after photomicrographs, spectroscopy, and fluorescence results.
Thursday, 26 October, 2023
International Gemmological Conference
National Museum of Nature and Science, Tokyo