23. Oct IGC 2023 Colour change Paraiba tourmaline from Brazil By Claudio C. Milisenda, Stefan Müller Download Pdf Tourmaline
23. Oct IGC 2023 Origin Identification Characteristics of High-quality Green Jadeite Currently occurrences of jadeite mainly include Myanmar, Guatemala, Russia, Kazakhstan and Japan. Or Read More Elodie
23. Oct IGC 2023 Causes of color in brown mammoth ivory The mammoth species were once the largest terrestrial mammals in the world during the late Pleistoce Read More Elodie
23. Oct IGC 2023 Analysis of Myanmar golden-lipped cultured pearls using X-ray radiography, EDXRF, UV-Vis-NIR and Raman spectroscopy Myanmar golden-lipped pearl oysters (Pinctada maxima) are well-known to be found at the Myeik Archip Read More Elodie
