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Gem Treating Courses

NO LONGER OFFERED
before-after treatment
for study and research

TRAINING COURSE#610 - THE HEAT TREATMENT OF RUBY-SAPPHIRE
This is a non-gemological course dealing with the thermochemistry and practical applications of heat-treating ruby & sapphire. Industry members say that this is the best and the only hard-core course on the subject available in this planet.. Only serious and dedicated participants will be considered and upon approva will attend.. Contact ted@themelis.com

ALL COURSES ARE NO LONGER OFFERED
HOWEVER, YOU CAN BUY THE LAST EDITION OF MY BOOK AND THE RELATED HEATING EQUIPMENT TO LEARN BY YOURSELF THE HEAT TRETING ART OF RUBIES-SAPPHIRES



V80-1200

NEW DEVELPMENTS IN HEAT TREATMENT RUBY-SAPPHIRE FROM T.THEMELIS

PHTSAPPHIRES PROJECT

Diffusion of non-buffering (Ar+He)/H2 gas into the lattice of gem corundum

Plasma Sintering Special Furnace for heating sapphires. This project is a colloborated effort with ITU (Istanbul Technolog Institut)..

Purging gas mixture consting of argon + helium mixed with up to 12%vol of. hydrogen in GEMLAB M50 and M80results in better blue coloration in heating geuda and selected sapphires.....more

Adventures of Ted Themelis to exotic gem mining areas around the globe. More..



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