Sanpietrini

The term ‘Sanpietrino’ is referred to the material used to pave the roads of the historical center of Rome. It is made of basalt, cut in truncated pyramid forms with a squared base of 12 cm, a maximum height of 17 cm and maximum weight of 3 kilos. The name comes from the homonym of St. Peter square where it was first used in XVI century to pave the piazza for its compactness and suitableness for carriage passages.