1. Technical Architecture Faculty; University of Seville; Reina Mercedes 4 41002 Seville Spain
2. UPMC Université Paris 06, UMR 8220; Laboratoire d'archéologie moléculaire et structurale, LAMS; F-75005 Paris France
3. CNRS; UMR 8220, LAMS; F-75005 Paris France
4. Materials Science Institute of Seville; CSIC - Seville University; Americo Vespucio 49 41092 Seville Spain