17. Nov IGC 2025 Zoisite and its many color Clemens Schwarzinger, Steve Ulatowski, George R. Rossman Download Pdf Other Gemstones
17. Nov IGC 2025 Rubies from Greenland Gemology is traditionally practiced in laboratories, focused on identifying and analyzing gemstones. Read More Laurent Cartier
17. Nov IGC 2025 The Importance and Methodology of Undertaking a Literature Search for Gemmological Research and Article Publishing Performing a literature search is a very important—but often neglected—part of doing gemmologica Read More Elodie
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
