23. Oct IGC 2023 Colour change Paraiba tourmaline from Brazil By Claudio C. Milisenda, Stefan Müller Download Pdf Tourmaline
23. Oct IGC 2023 Mapping underground rivers at the Copeton Diamond Field, New South Wales, Australia. Following these “deep leads” to further riches In Australia’s ‘New England’, early gold and tin explorers discovered diamonds in their sluice Read More Elodie
23. Oct IGC 2023 DNA Fingerprinting and age dating of historic natural pearls: a combined approach Natural pearls are accidental formations in wild oysters. The lack of new supply in recent decades h Read More Elodie
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
