Cobalt diffusion-treated spinel. Published in IGC Namibia 2017 Abstract Proceedings, 151-153.
Author(s): M.S. Krzemnicki, H.A.O. Wang, T. Stephan, U. Henn
Emeralds and the saga of cleaning and filling fissures. Facette (2017)
Author(s): M.S. Krzemnicki
Treated ruby. Published in Gems& Jewellery, 2012, 3, 14-17.
Author(s): K. Schmetzer, M.S. Krzemnicki, A. Hodgkinson
Presentation on the fascinating diversity and range of colours found in corundum, going far beyond the blue of sapphire and red of ruby.
Author(s): M.S. Krzemnicki
Latest research on detection of low temperature treatment of pink sapphires. Presentation by Dr. Michael Krzemnicki of SSEF.
A diamond briefing with Prof. Henry Haenni. Published in Jewelry World, 2007.
Observations on treated ruby and sapphire. Published in Taiwan Jewellery World Magazine, 2006.
Author(s): H.A. Haenni
Study shows chocolate pearls are ‘stained’. Published in Jewellery News Asia, 2006.
Author(s): H.A. Haenni
Breakthrough in orange – the potential of GemLIBS in gem testing. Published in Jewellery News Asia, 2005.
Author(s): H.A. Haenni
Orange topaz with synthetic hematite coating. Published in Gems & Gemology, 2002.
Author(s): M.S. Krzemnicki