This family includes a very high number of natural stones of irregular and non-worked form. Marble, porphyry, granite and semiprecious stones provided in a variety of ranges of excellent quality. They are mainly used for street furniture and decorating public and private green areas. All the products are available in different sizes to enable the correct size for the final use to be chosen. A chromatic range without parallel on the market to meet the needs of even the most demanding customer. Calculate the amount of material needed with the .