Dear Colleagues, As the registration for the 4th European Mineralogical Conference in Dublin (18-23.08.2024) is now open, we would like to draw your attention and encourage you to submit contributions to the EMC session: "Spectroscopic approaches for crystallochemical characterization of minerals and mineral behavior under ambient and non-ambient conditions: application for Earth and Planetary exploration" Spectroscopic techniques are frequently used in mineralogical studies and can deliver unique information about the chemical composition and local-short-range scale structural configurations of minerals and amorphous phases. The application of classical and innovative spectroscopic approaches is highly relevant both for identifying critical elements (given the role of critical minerals in clean energy transition) and for characterizing planetary materials. Spectroscopic results combined with Artificial Intelligence and Machine Learning have been successfully used in very recent studies, focused on environmental contamination, paleo-environments reconstruction, in-situ rock analysis, mineral resources, planetary investigation, and cultural heritage. Moreover, since the crystal-chemical configuration of minerals is highly sensitive to external conditions (i.e., pressure, temperature, and oxygen fugacity), in-situ high-temperature and high-pressure spectroscopic experiments (via Raman and/or infrared spectroscopy) under a controlled atmosphere may provide fundamental data for understanding planetary-scale phenomena, including petrogenesis of volcanic rocks, metamorphic processes, and mineral evolution at convergent plate margins. We foster participation and contribution to the session with spectroscopy-based research on both terrestrial and extra-terrestrial materials, from fundamentals to applications. Contributions addressing the crystallochemical characterization of minerals including mineral behavior under non-ambient conditions, dehydrogenation processes and transport of volatile elements into deeper regions of the Earth's crust and mantle are also welcome. Keynote speaker: Dr. Mara Murri, University of Pavia Instructions for abstract submission can be found at the following website: https://emc-2024.org/abstract-submission/ The abstract submission deadline is Friday, 22 March 2024 https://emc-2024.org/programme/ We look forward to seeing you in Dublin. Giovanni Andreozzi, Stelios Aspiotis, Lisa Baratelli, Simone Bernardini, Enrico Bruschini, Cristian Carli, Gabriele Giuli, Alice Stephant, Gioacchino Tempesta