A Gemmological Approach to Distinguishing Natural from Synthetic Rubies: LA-ICP-TOF mass spectrometry provides new insights (2019)
Presentation at ECMS 2019 in Prague (Czech Republic) by Dr. Tashia J. Dzikowski-Hutter.
Origin determination and traceability: An overview for gemstones
Origin determination and traceability: An overview for gemstones. Presentation at GemGenève 2019 by Dr. Michael S. Krzemnicki.
A Preliminary SIMS Study Using Carbon Isotopes to Separate Natural from Synthetic Diamonds
A Preliminary SIMS Study Using Carbon Isotopes to Separate Natural from Synthetic Diamonds. Published in Journal of Gemmology, 2018, 36, 1, 38-43. Author(s) : H.A.O. Wang, L.E. Cartier, L.P. Baumgartner, A.-S. Bouvier, F. Begué, J.-P. Chalain, M.S. Krzemnicki
Sapphires from Ambatondrazaka, Madagascar
Madagascar, an island of many gem treasures, saw in recent months another ‘sapphire rush’ after the discovery of a new gem deposit about 35 km east of the small town of Ambatondrazaka.
Yellow danburite from Namalulu, Tanzania: Gemmological properties and chemical composition
Yellow danburite from Namalulu, Tanzania: Gemmological properties and chemical composition. Published in Journal of Gemmology, 2017, 35, 5, 381-384. Author(s): C.P. Smith, M.S. Krzemnicki, H.A.O. Wang
GemTOF: A new and highly versatile method to analyse trace elements and isotopes of gemstones and pearls
GemTOF: A new and highly versatile method to analyse trace elements and isotopes of gemstones and pearls. Published in IGC Namibia 2017 Abstract Proceedings, 88-90. Author(s): M.S. Krzemnicki, W.A. Balmer, H.A.O. Wang, J.-P. Chalain, P. Lefevre, W. Zhou, L.E. Cartier, H.A. Haenni
Simultaneous High Sensitivity Trace-Element and Isotopic Analysis of Gemstones Using Laser Ablation Inductively Coupled Plasma Time-of-Flight Mass Spectrometry
Simultaneous High Sensitivity Trace-Element and Isotopic Analysis of Gemstones Using Laser Ablation Inductively Coupled Plasma Time-of-Flight Mass Spectrometry. Published in Journal of Gemmology, 2016, 35, 3, 212-223. Author(s): H.A.O. Wang, M.S. Krzemnicki, J.-P. Chalain, P. Lefevre, W. Zhou, L.E. Cartier
GemTOF: A Pioneering Technique in Gemology
GemTOF: A Pioneering Technique in Gemology. Published in InColor, 2016, 33, 40-46. Author(s): H.A.O. Wang, M.S. Krzemnicki, L.E. Cartier
Spectroscopic study of Co-bearing spinel from Luc Yen (Vietnam)
Spectroscopic study of Co-bearing spinel from Luc Yen (Vietnam). Published in 2015 Swiss Geoscience Meeting Proceedings, 130. Author(s): C. Hanser
LA-ICP-MS in gemmology (2009)
2009 European Gemmological Symposium presentation (by Dr. Michael Krzemnicki) about different applications of Laser Ablation Inductively Coupled Mass Spectrometry in gemmology.