Mazzolini uses only the highest quality marble from the quarries of Tuscany: bianco puro or bianco duro di Carrara – the same marble used by Michelangelo. In 1517 Michelangelo found the "cava" di Seravezza on the mountain Altissimo. This type of marble is practically impervious to the elements.

Mazzolini can also create sculptures in stones such as granite or alabaster.

The stone carving tools used nowadays have not change much from Michelangelo's time. The rough stone is first pounded with a pitching hammer and then sculpted with special pointing tools and files.