Perlendiagnose mit Laue-Aufnahmen
Perlendiagnose mit Laue-Aufnahmen. Published in Zeitsch […]
Untersuchungen an Titanit, einem für Sri Lanka neuen Edelstein
Untersuchungen an Titanit, einem für Sri Lanka neuen Ed […]
Ferroaxinite – another new gem from Sri Lanka
Ferroaxinite – another new gem from Sri Lanka. Pu […]
Caractéristiques des corindons chauffés et traités par diffusion
Caractéristiques des corindons chauffés et traités par […]
Ein Smaragdvorkommen in Madagaskar
Ein Smaragdvorkommen in Madagaskar. Published in Zeitsc […]
A contribution to the separability of natural and synthetic emeralds
A contribution to the separability of natural and synth […]
Blue colour-changing kyanite from East Africa
Blue colour-changing kyanite from East Africa. Publishe […]
Golden yellow tourmaline of gem quality from Kenya
Golden yellow tourmaline of gem quality from Kenya. Pub […]
First occurence of gem sphene in Sri Lanka
First occurence of gem sphene in Sri Lanka. Published i […]