1. Department of Biological, Geological and Environmental Sciences University of Catania Catania Italy
2. Department of Mathematical, Physical and Computer Sciences University of Parma Parma Italy
3. Institute of Geochemistry, Mineralogy and Mineral Resources Charles University Prague Czech Republic
4. Institute of Chemistry of Organometallic Compounds, National Research Council (ICCOM‐CNR) Pisa Italy
5. Department of Chemistry Ghent University Ghent Belgium
6. Department of Archaeology Ghent University Ghent Belgium