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
A historic turquoise jewelry set containing fossilized dentine (odontolite) and glass
A historic turquoise jewelry set containing fossilized dentine (odontolite) and glass. Published in Gems & Gemology, 2011. Author(s): M.S. Krzemnicki, F. Herzog, W. Zhou
Chrysoberyl: a gem with many faces
Chrysoberyl: a gem with many faces. Published in GAHK Journal, 2010. Author(s): H.A. Haenni
Interesting muscovite specimens from Pakistan: epitaxial incrustation and pseudomorphism after beryl
Interesting muscovite specimens from Pakistan: epitaxial incrustation and pseudomorphism after beryl. Published in the Journal of the Gemmological Association of Hong Kong (2010). Author(s): M.S. Krzemnicki
Künstliches Glas mit interessantem Farbeffekt – Grüsse aus dem Weltall oder doch sehr irdisch?
Künstliches Glas mit interessantem Farbeffekt – Grüsse aus dem Weltall oder doch sehr irdisch?. Gold’Or (2010) Author(s): M.S. Krzemnicki
Verre artificiel changeant de couleur – Une pierre « extraterrestre »
Verre artificiel changeant de couleur – Une pierre « extraterrestre » Gold’Or (2010) Author(s): M.S. Krzemnicki
Moonstones and Co: a brief review of the feldspar group
Moonstones and Co: a brief review of the feldspar group. Published in 2009. Author(s): H.A. Haenni