Tatiana A. Koroleva is a junior research assistant and PhD student at the Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the Russian Academy of Science (IGEM RAS). She graduated with a master's degree with honors in 2024. She is actively involved in organizing regular conferences of the Russian Clay Group (ruclay.com) since 2019. Her main research interests: clay minerals and clay deposits; detail investigation of clay minerals with X-Ray diffraction, FTIR-spectroscopy.