Gemmological Analysis of a Roman Sapphire Intaglio and Its Possible Origin
Gemmological Analysis of a Roman Sapphire Intaglio and Its Possible Origin. Published in Journal of Gemmology, 2019, 36(8), 710-724.
Padparadscha-like Fancy sapphires with Unstable Colours Colouration Mechanisms and Disclosure
Padparadscha-like Fancy sapphires with Unstable Colours: Colouration Mechanisms and Disclosure. Published in InColor, 2019, No. 41, 92-94.
Unstable Colouration of Padparadscha-like Sapphires
Unstable Colouration of Padparadscha-like Sapphires. Published in Journal of Gemmology, 2018, 36(4), 346-354.
Yellow danburite from Namalulu, Tanzania, and Myanmar: Origin of Colour and Its Stability
Yellow danburite from Namalulu, Tanzania, and Myanmar: Origin of Colour and Its Stability. Published in Journal of Gemmology, 35, 5, 384-386. Author(s): C.P. Smith, M.S. Krzemnicki
Preserving the heritage of gemstone regions and resources worldwide: Future directions.
Preserving the heritage of gemstone regions and resources worldwide:Future directions. Published in Episodes, 2017, 40, 3, 233-236. Author(s): L.E. Cartier
From classic inclusions to neutrons (2017)
Presentation by Dr. Michael S. Krzemnicki at 2017 Swiss Gemmological Society conference in Zermatt. Talk entitled ‘From classic inclusions to neutrons: A ‘fresh’ look at modern gemmology’.
Modern Doublets from Germany and India
Modern Doublets from Germany and India. Published in Journal of Gemmology, 2015, 34, 6, 479-481. Author(s): H.A. Haenni, U. Henn
Saguaro Stone, a New Ornamental Material from Arizona (USA)
Saguaro Stone, a New Ornamental Material from Arizona (USA). Published in Journal of Gemmology, 2015, 7, 567-569.
Colourless to near colourless diopside from Canada and Kenya
Colourless to near colourless diopside from Canada and Kenya. Published in Journal of Gemmology, 2014, 4, 291-292. Author(s): M.S. Krzemnicki
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