Using Mass Spectroscopy to Count Os and Re Isotopes

In this video, Dr. Shirey explains the use of mass spectrometry to count the isotopes of osmium and rhenium recovered from the sulfide inclusion. This is the final stage of the analysis that began with selecting diamond crystals with suitable sulfide inclusions from working mines. Shirey and his colleagues will use the data captured on the relative amounts of each isotope to determine the age of the inclusion and therefore the diamond itself. View the full article at http://www.gia.edu/gia-news-research-...