The 8th Mineral Sciences in the Carpathians Conference was held 13-14 May 2021. It was organised online, because the COVID-19 pandemic. The main organisers were the University of Miskolc, Herman Ottó Museum and the Hungarian Geological Society. More than 50 participants registered to the conference. During the 2 days conference there were 4 plenary lectures, 33 presentations and 11 posters.