Itinerary B
Val di Noto


Sandstone, also called pietra pece because of its shades of very dark grey, is a very ancient sedimentary rock. It dates back to the Cenozoic Era, which ranges from 65 million to around 2 million years ago.
The colour of this sedimentary rock is given by the percentage of bitumen varying from 4% to 10%, a characteristic that make it suitable for damp places and flooring.pietra arenaria