Natural and synthetic vanadium-bearing chrysoberyl
Natural and synthetic vanadium-bearing chrysoberyl. Published in Journal of Gemmology, 2013, 33, 7–8, 223-238. Author(s): K. Schmetzer, M.S. Krzemnicki, T. Hainschwang, H.-J. Bernhardt
The role of vanadium and titanium in natural and synthetic chrysoberyl and alexandrite – coloration, chatoyancy and asterism
The role of vanadium and titanium in natural and synthetic chrysoberyl and alexandrite – coloration, chatoyancy and asterism. Published in IGC 2013 Vietnam Abstract Proceedings, 84-87. Author(s): K. Schmetzer, M.S. Krzemnicki, T. Hainschwang, H.-J. Bernhardt
Vanadium-bearing gem-quality tourmalines from Madagascar
Vanadium-bearing gem-quality tourmalines from Madagascar. Published in Journal of Gemmology, 2007. Author(s): K. Schmetzer, H.-J. Bernhardt, C. Dunaigre, H.A. Haenni
Gem-quality taafeeites and musgravites from Africa
Gem-quality taafeeites and musgravites from Africa. Published in Journal of Gemmology, 2007. Author(s): K. Schmetzer, M.S. Krzemnicki, H.A. Haenni, H.-J. Bernhardt, T. Pettke
Gemmological properties and chemical composition of gemquality taaffeites and musgravites from Sri Lanka and Africa
Gemmological properties and chemical composition of gem-quality taaffeites and musgravites from Sri Lanka and Africa. Published in GIT Proceedings, 2006. Author(s): K. Schmetzer, M.S. Krzemnicki, H.A. Haenni, H.-J. Bernhardt
Star garnets and star garnet cat’s-eyes from Ambatondrazaka, Madagascar
Star garnets and star garnet cat’s-eyes from Ambatondrazaka, Madagascar. Published in Journal of Gemmology, 2002. Author(s): K. Schmetzer, H.-J. Bernhardt, L. Kiefert
Rosa bis rosa-orangefarbene Malaya-Granate aus Bekily, Madagaskar
Rosa bis rosa-orangefarbene Malaya-Granate aus Bekily, Madagaskar. Published in GZ, 2002. Author(s): K. Schmetzer, L. Kiefert, T. Hainschwang, H.-J. Bernhardt
Oriented inclusions in spinel from Madagascar
Oriented inclusions in spinel from Madagascar. Published in Journal of Gemmology, 2000. Author(s): K. Schmetzer, E. Guebelin, H.-J. Bernhardt, L. Kiefert
Multicomponent inclusions in Nacken synthetic emeralds
Multicomponent inclusions in Nacken synthetic emeralds. Published in Journal of Gemmology, 1999. Author(s): K. Schmetzer, L. Kiefert, H.-J. Bernhardt
Element mapping of trapiche rubies
Element mapping of trapiche rubies. Published in Journal of Gemmology, 1999. Author(s): K. Schmetzer, Z. Beili, G. Yan, H.-J. Bernhardt, H.A. Haenni