Microtomografia computadorizada distingue pérolas naturais das cultivadas com nucleo e sem nucleo (Spanish)
Microtomografia computadorizada distingue pérolas natur […]
El SSEF denuncia la invasión de perlas “Keshi” cultivadas
El SSEF denuncia la invasión de perlas “Keshi” cultivad […]
Appearance of new bead material in cultured pearls
Abstract: A range of different materials has already be […]
Keshis entering natural pearl trade
Keshis entering natural pearl trade. Jewellery News Asi […]
X-ray computed microtomography: distinguishing natural pearls from beaded and non-beaded cultured pearls
Abstract: The distinction of natural from cultured […]
“Keshi”-Zuchtperlen: Eine neue Herausforderung für den Perlenhandel
“Keshi”-Zuchtperlen: Eine neue Herausforder […]
Perles de culture “Keshi”: Un nouveau défi pour le commerce des perles
Perles de culture “Keshi”: Un nouveau défi […]
X-ray micro computed tomography: an explanation of the procedures and benefits (2010)
Presentation at Swiss Gemmological Society about trip to spinel and corundum deposits in Tanzania in October 2009 by Dr. Walter Balmer and Dr. Michael Krzemnicki
New developments in pearl analysis: Radiocarbon 14C age dating (2009)
Talk given on radiocarbon dating of pearls at International Gemmological Conference (IGC) in Arusha (Tanzania) in 2009 by Dr. Michael Krzemnicki.
New developments in pearl analysis: X-ray micro tomography (2009)
Presentation at 2009 European Gemmological Symposium (Bern, Switzerland) by Jean-Pierre Chalain on the platelet peak of HPHT-treated diamonds of type Ia.