17. Nov IGC 2025 Spinel from Sri Lanka – An update Gamini Zoysa, Dietmar Schwarz, Arunas Kleismantas Download Pdf Other Gemstones
17. Nov IGC 2025 Dyed purple Jade (Lavender jade or purple “Fei Cui”) from Mandalay’s jade market, Myanmar Jade or "Fei Cui" are trade names for a stone that typi- cally contains only one or more main minera 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 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
