17. Nov IGC 2025 Pink-orange gem quality euclase from Bahia, Brazil Lætitia Gilles-Guéry Download Pdf Other Gemstones
17. Nov IGC 2025 Effects of Gamma Irradiation on Corundum: Towards a Potential Detection Method Corundum, encompassing the highly prized ruby and sapphire varieties, stands as a cornerstone of the Read More Elodie
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
17. Nov IGC 2025 Hurlbutite from Myanmar A crystal of the very rare mineral hurlbutite originating from Myanmar (without further locality det Read More Elodie
