Piperno

thumb|The staircase, in Piperno, to the mezzanine floor of Villa Meola in Portici thumb|Piperno in Church of San Francesco delle Monache, Naples

Piperno is a particular variety of dimension stone of igneous origin, a tuff or ignimbrite, native to areas in Southern Italy that have been affected by explosive volcanic activity. Piperno abounds in Campania; the areas from which it was obtained were the city of Quarto, Soccavo, Pianura and Nocera Inferiore in the supervolcano region of the Phlegraean Fields. The Piperno layer, with the overlying Breccia Museo, is clearly visible at the base of the Camaldoli hill, in the Soccavo and Verdolino areas.