The lithotype mainly used in the construction of the Cathedral of Seville is the calcarenite from Puerto de Santa f\/laria followed by the limestone from Espera. The primordial extrinsecal factor of deterioration is the atmospherical contamination. mainly sulphur oxides and smoke. within a humid environment. https://www.roneverhart.com/Pizzalapio-pyorea-reiallinen-alumiinia-36-120-cm/