Zircon inclusions in unheated pink sapphires from Ilakaka, Madagascar: A Raman spectroscopic study. Published in IGC 2021 Online Proceedings, 21-23. https://www.igc-gemmology.org/igc-2021-online
Raman spectroscopic investigation of zircon in gem-quality sapphire: Application in origin determination. Published in Journal of Raman Spectroscopy, 2021, 1–11, https://doi.org/10.1002/jrs.6092
Padparadscha-like Fancy sapphires with Unstable Colours: Colouration Mechanisms and Disclosure. Published in InColor, 2019, No. 41, 92-94.
The Talisman of Charlemagne: New Historical and Gemological Discoveries. Published in Gems & Gemology, 2019, 55(1), 30-46.
Gemmological Analysis of a Roman Sapphire Intaglio and Its Possible Origin. Published in Journal of Gemmology, 2019, 36(8), 710-724.
Sapphires Heated with Pressure – A Research Update. Published in InColor, Spring 2019, 86-90.
Presentation by Dr. Michael S. Krzemnicki at IGC 2019 in Nantes, France.
Unstable Colouration of Padparadscha-like Sapphires. Published in Journal of Gemmology, 2018, 36(4), 346-354.
News from the SSEF Lab. 2018 Swiss Gemmological Society conference. Presentation by Dr. Michael Krzemnicki
Sapphires from a New Deposit at Bemainty near Ambatondrazaka in Madagascar. Published in Incolor, 2017, 35, 44-47.
Author(s): M.S. Krzemnicki