Vanadium-bearing gem-quality tourmalines from Madagascar
Vanadium-bearing gem-quality tourmalines from Madagasca […]
The Origin Determination of Gemstones: Challenges and Perspectives
The Origin Determination of Gemstones: Challenges and P […]
Origin Determination of Gemstones: Challenges and Perspectives
Origin Determination of Gemstones: Challenges and Persp […]
Les nouvelles mines d’émeraudes de la Pita (Colombie)
Les nouvelles mines d’émeraudes de la Pita (Colom […]
Investigations on sapphires from an alkali basalt, South West Rwanda
Investigations on sapphires from an alkali basalt, Sout […]
Ein neues Vorkommen im Süden von Madagaskar
Ein neues Vorkommen im Süden von Madagaskar. Published […]
Origin determination for gemstones: possibilities, restrictions, reliability
Origin determination for gemstones: possibilities, rest […]
Reliability of origin determinations for gemstones
Reliability of origin determinations for gemstones. Pub […]
Ein Beitrag zu den Erkennungsmerkmalen der Kaschmir-Saphire
Ein Beitrag zu den Erkennungsmerkmalen der Kaschmir-Sap […]