17. Nov IGC 2025 Color Genesis Analysis and Characteristics for Origin Identification of Purple Jadeite Elizabeth Su Download Pdf Jade
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 Fe-Ti charge transfers: A comprehensive review and its applications to minerals and gems The iron-titanium charge transfer (Fe-Ti CT) is mentioned in numerous articles as the source of the Read More Laurent Cartier
17. Nov IGC 2025 An approach to understanding the factors in the emerald enhancement clarity grading system used at CDTECGemlab Emerald is the green variety of beryl, with its distinctive color resulting from trace amounts of ch Read More Elodie