Nail-head Spicules as Inclusions in Chrysoberyl from Myanmar
Nail-head Spicules as Inclusions in Chrysoberyl from Myanmar. Published in Journal of Gemmology, 2015, 5, 434-438. Author(s): K. Schmetzer, M.S. Krzemnicki
Saguaro Stone, a New Ornamental Material from Arizona (USA)
Saguaro Stone, a New Ornamental Material from Arizona (USA). Published in Journal of Gemmology, 2015, 7, 567-569.
Olivine – Peridot
Olivine – Peridot. Published in Journal of the Gemmological Association of Hong Kong GAHK, Vol. 35, 35-37. Author(s): H.A. Haenni
Polycristalline kyanite from Tanzania
Polycristalline kyanite from Tanzania. Published in Journal of Gemmology, 2014, 4, 294. Author(s): M.S. Krzemnicki
Colourless to near colourless diopside from Canada and Kenya
Colourless to near colourless diopside from Canada and Kenya. Published in Journal of Gemmology, 2014, 4, 291-292. Author(s): M.S. Krzemnicki
Quartz with radiating fibres, sold as Trapiche quartz
Quartz with radiating fibres, sold as Trapiche quartz. Published in Journal of Gemmology, 2014, 4, 296-298. Author(s): M.S. Krzemnicki, B.M. Laurs
Alumosilicates: Andalusite, Kyanite, Sillimanite
Alumosilicates: Andalusite, Kyanite, Sillimanite. Published in Journal of Gemmological Association of Hong Kong GAHK, 2014, 34, 22-23. Author(s): H.A. Haenni
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
Some uncommon sapphire “imitations”: Blue Co-zirconia, kyanite and blue dumortierite
Some uncommon sapphire “imitations”: Blue Co-zirconia, kyanite and blue dumortierite. Published in Journal of the Gemmological Association of Hong Kong GAHK, 34, 62-64 Author(s): M.S. Krzemnicki