23. Oct IGC 2023 Colour change Paraiba tourmaline from Brazil By Claudio C. Milisenda, Stefan Müller Download Pdf Tourmaline
23. Oct IGC 2023 Geographic Origin Determination of Fei Cui: A comparison of high-quality green Fei Cui from Myanmar, Guatemala, and Italy Fei Cui is a kind of jade that is defined as a granular to fibrous polycrystalline aggregate compose Read More Elodie
23. Oct IGC 2023 Study and investigation of garnet from Balangir in Odisha, India n the present study investigation of almandine-pyrope garnet, found in the Khaliapali village (20.86 Read More Elodie
23. Oct IGC 2023 Low Temperature Heat Treatment of Burmese Ruby Detection of low-temperature heat treatment (below 1200°C) in ruby and sapphire can present challen Read More Elodie
