by Dr. M.S. Krzemnicki, first published in Facette 26 (May 2020) Radiometric age dating is a well-established method in geochronology (Earth sciences) and archaeology. There are numerous studies highlighting the use of radioactive decay of U-Pb, K-Ar (amongst many others) for geological age dating and radiocarbon 14C for biogenic material (bones, shells) of antique to pre-historic … Continue reading Age dating as a testing procedure for gemstones and biogenic gems