1. Department of Earth Sciences, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
2. Institute for the Study of Nanostructured Materials (ISMN), National Research Council (CNR), SP35d 9, Montelibretti, 00010 Rome, Italy
3. Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via Eudossiana, 18, 00184 Rome, Italy
4. Science and Technology for the Conservation of Cultural Heritage, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
5. Department of Physics, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
6. Central Institute for Restoration, Via di San Michele 25, 00153 Rome, Italy
7. Institute of Crystallography, Department of Chemical Sciences and Materials Technologies, National Research Council of Italy, Strada Provinciale 35d 9, Montelibretti, 00010 Rome, Italy
8. Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy