is a type of limestone which is characterized by different percentages of bitumen. This morphologic origin makes the pitchstone particularly unique for its peculiar chromatic shading.
Pietra di Lecce (Lecce stone) is a calcareous stone well know for its ductility, which makes it suitable for the production of different and original crafts as it gives every article a unique and unrepeatable mark.
Alabaster or Volterra stone has properties and features which make it unique. Simply observe it to see the reflections shed by its transparency. As it looks fragile and delicate, it needs the hand of a man to find out its identity.