17. Nov IGC 2025 On the nature of blue rose quartz Karen E. Fox, Andrew M. McDonald, Chris Yakymchuk Download Pdf Other Gemstones
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 Hessonite garnet from Angul district of Odisha, India This study describes hessonite (Fe-bearing variety of grossular garnet), found in the Birlamunda vil Read More Elodie
17. Nov IGC 2025 Advancing Fei Cui Origin Authentication: A comparison of green fei cui from Myanmar, Guatemala, Italy and Russia In recent years, an increasing number of sources of fei cui, such as Guatemala, Italy and Russia, ha Read More Elodie