17. Nov IGC 2025 Challenges in the Detection of Ruby and Sapphire Treatment in the Thai Market Supparat Promwongnan, Wilawan Atichat, Cheewaporn Suphan, Wassana Chongraktrakul, and Visut Pisutha-Arnond Download Pdf RubySapphireTreatments
17. Nov IGC 2025 Typomorphic features of tourmalines of the Malkhan pegmatite field from the Irkutyanka vein A.Y. Shelementyeva, Y.B. Shelementyev, O.V. Yarapova Download Pdf Read More Elodie
17. Nov IGC 2025 Pink-orange gem quality euclase from Bahia, Brazil Euclase, monoclinic crystal system—is a seldomly occurring mineral and with a Mohs hardness of 7 a Read More Elodie
17. Nov IGC 2025 Found, Lost, and Found Again: The Geological and Gemological Significance of the Salininha Emerald Deposit, Brazil The Salininha emerald deposit located in the municipality of Pilão Arcado, Bahia State, represents Read More Elodie
