Marble (dolimized calcary), with very thin glanulometry and high compaction. Alternate between lighter portions of white background (Donatello) and others toned in light gray (Bottero). The marbles are used from the most remote times and in various cultures, they are attributed with healing properties to the digestive system and stress relief. They are also associated with the protection against the bad spirits, a balance between the man and good humor, helping to keep loyalty to the family and their happiness.