Colour change effects in gemstones: Causes and perception
Colour change effects in gemstones: Causes and perception. Published in IGC 2013 Vietnam Abstract Proceedings, 110-113. Author(s): M.S. Krzemnicki, W. Zhou, J. Maizlan
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
Damage to cut gemstones
Damage to cut gemstones. Published in The Valuer, 2009. Author(s): H.A. Haenni
Advancements in gemmological instrumentation over the last 30 years
Advancements in gemmological instrumentation over the last 30 years. Published in GAHK Journal, 2009. Author(s): H.A. Haenni
Natural impregnation of a rock by copper minerals
Natural impregnation of a rock by copper minerals. Published in Gems & Gemology, 2008. Author(s): H.A. Haenni
Pierres précieuses A à Z: émeraudes, rubis, saphirs et autres
Pierres précieuses A à Z: émeraudes, rubis, saphirs et autres. Published in GoldOr, 2007. Author(s): J.-P. Chalain
Origin Determination of Gemstones: Challenges and Perspectives
Origin Determination of Gemstones: Challenges and Perspectives. Published in GIT Proceedings, 2006. Author(s): M.S. Krzemnicki, H.A. Haenni, P. Lefevre, J.-P. Chalain
Réglementation du commerce des gemmes
Les pierres précieuses de A à Z: Réglementation du commerce des gemmes. Published in revue de la Fédération de l’industrie horlogère suisse FH, 2005. Author(s): J.-P. Chalain
Les pierres précieuses de A à Z
Les pierres précieuses de A à Z. Published in revue de la Fédération de l’industrie horlogère suisse FH, 2005. Author(s): J.-P. Chalain