17. Nov IGC 2025 A Photo Survey of Inclusions in Fossiliferous Amber Nathan Renfro Download Pdf Other Gemstones
17. Nov IGC 2025 Noble gas in corundum: interests in gemology Noble gases —elements of the last column of the periodic table—are chemically defined by their f Read More Elodie
17. Nov IGC 2025 Challenges in the Detection of Ruby and Sapphire Treatment in the Thai Market The detection of treatments in ruby and sapphire remains a critical aspect and has become an increas Read More Laurent Cartier
17. Nov IGC 2025 Zoisite and its many color The mineral zoisite is a calcium alumosilicate belonging to the class of silicates, more exactly sor Read More Elodie
