17. Nov IGC 2025 Automated Data Processing of Raman Spectra for Supporting Spinel Origin Determination Tasnara Sripoonjan, Montira Seneewong Na Ayutthaya, Sirinapa Saengdech, Sutas Singbamroong, Alongkot Fanka Download Pdf GemmologyOriginsSpinel
17. Nov IGC 2025 Historic Emeralds and their Geographic Origin: A Retrospective Study When it comes to the geographic origin of gems, curiously enough, historians sometimes put forward p Read More Elodie
17. Nov IGC 2025 Noble gas in corundum: interests in gemology Noble gases —elements of the last column of the periodic table—are chemically defined by their f Read More Elodie
17. Nov IGC 2025 Gem-quality pink fluorite from Planggenstock, Switzerland: chemical and physical properties and a comparison with pink fluorites from other localities In this study, first results of trace element analyses and various spectrometric investigations on p Read More Laurent Cartier