Similar to gemstones which are re-polished over time and thus need an updated SSEF report, we also occasionally receive pearls a second or third time for a new report, for example when the pearl is set in a new jewellery design. This is specifically the case when a pearl is important and/or of historical proven
Age dating of minerals and their associated rock formations is important in geoscience research in order to be able to reconstruct and understand geological processes and Earth’s history. To be able to date a mineral, it is necessary that this mineral incorporates an element/isotope that decays radioactively
Pearl testing was long limited to determining whether a pearl is natural or cultured, and whether a pearl has been treated or not. As we have considerably invested in pearl research in recent years, we have achieved significant breakthroughs, namely DNA fingerprinting for species identification and radiocarbon
Radiometric U-Pb dating is a promising tool in gemstone testing and is used at SSEF as an advanced analytical procedure since several years. However, this method is usually only applicable when the gemstone presents sufficient traces of radiogenic elements either in its crystal structure or within a solid inclu
by Dr. M.S. Krzemnicki, first published in Facette 26 ( […]
by Dr. M. S. Krzemnicki & Dr. H.A.O. Wang, first pu […]
U–Pb Dating of Zircon and Zirconolite Inclusions in Marble-Hosted Gem-Quality Ruby and Spinel from Mogok, Myanmar
U–Pb Dating of Zircon and Zirconolite Inclusions in Mar […]
New frontiers in pearl analysis: Age dating, DNA fingerprinting and novel radiographic methods (2019)
Presentation by Dr. Michael S. Krzemnicki and Jean-Pierre Chalain at the Pearl Symposium in Bahrain in November 2019.
Presentation by Dr. Michael S. Krzemnicki at IGC 2019 in Nantes, France.