23. Oct IGC 2023 Colour change Paraiba tourmaline from Brazil By Claudio C. Milisenda, Stefan Müller Download Pdf Tourmaline
23. Oct IGC 2023 FTIR Fingerprinting: a case study on mineral inclusion identification by FTIR applied on rubies from marble-hosted deposits Fourier-Transform Infrared Spectrometry (FTIR) is a well-established analytical method in the field Read More Elodie
23. Oct IGC 2023 An implementation of machine learning in ruby and sapphire origin determination Country-of-origin is one of the most important value factors of corundum (ruby and sapphire) due mai Read More Elodie
23. Oct IGC 2023 Milky appearance of Geuda sapphire from Sri Lanka Sri Lanka is famous for gems since several thousand years. Almost corundum varieties have been found Read More Elodie
