John I. Koivula
Gemological Institute of America, Carlsbad, CA
Activity
2015
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PRODUCTION OF SPURIOUS PARTIALLY HEALED FRACTURES IN SYNTHETIC CORUNDUM THROUGH HIGH-TEMPERATURE FUSION
T64 Gemological Research in the 21st Century: Exploration, Geology, and Characterization of Diamonds and other Gem MineralsSunday, 1 November 20151:30 PM - 5:30 PMRoom 342
2014
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THE RIDDLE OF THE BLUE CRYSTAL: A DIAMOND’S ENIGMATIC INCLUSION IS AN INTRIGUING MESSENGER FROM ONE OF EARTH’S LAST FRONTIERS
114 Mineralogy/Crystallography (Posters)Monday, 20 October 20149:00 AM - 6:30 PMExhibition Hall C