Les pierres précieuses de A à Z
Les pierres précieuses de A à Z. Published in revue de […]
Asterism in beryl, aquamarine and emerald- an update
Asterism in beryl, aquamarine and emerald- an update. P […]
Pezzottaite, a new mineral and gem
Pezzottaite, a new mineral and gem. Published in Journa […]
Nulla parte mirabilior: Zur Verwendung von Edelsteinen in der Antike
Nulla parte mirabilior: Zur Verwendung von Edelsteinen […]
Orange topaz with synthetic hematite coating
Orange topaz with synthetic hematite coating. Published […]
Edelsteine heute: echt, behandelt oder synthetisch?
Edelsteine heute: echt, behandelt oder synthetisch?. Pu […]
Raman spectroscopic applications in gemmology
Raman spectroscopic applications in gemmology. Publishe […]
Wissenswertes über Edelsteine
Wissenswertes über Edelsteine. Published in 2001. Autho […]
Update on Moissanite identification
Update on Moissanite identification. Published in GAHK […]