17. Nov IGC 2025 Effects of Gamma Irradiation on Corundum: Towards a Potential Detection Method Hao A.O. Wang, Markus Wälle, Vladimir Hutanu, Xiaosong Li, Michael S. Krzemnicki Download Pdf Treatments
17. Nov IGC 2025 A convincing glass imitation of larimar (pectolite) Larimar, a massive blue variety of the mineral pectolite, belonging to the wollastonite group of min Read More Elodie
17. Nov IGC 2025 Bertrandite in Emeralds Over the past few years we have been seeing more and more lower quality stones in the lab. The reaso Read More Laurent Cartier
17. Nov IGC 2025 Gemological Characteristics of New Transparent Brown Sapphire A newly observed variety of faceted transparent brown sapphire has recently entered the gem market, Read More Laurent Cartier