Department of Earth Sciences, University of Florence, Via La Pira 4, 50121 Florence, Italy
Department of history of Architecture, Restoration and Conservation of Architectural Monuments, University “La Sapienza” Rome, P.za Borghese 9, 00186 Rome, Italy
National Research Council - Centro di Studio sulle, Cause di Deperimento e sui Metodi di Conservazione delle Opere d'Arte - Florence, Via Degli Alfani 74, 50121 Florence, Italy