Never as in these times it is important to surround ourselves with natural products that respect the environment and health. Our stones and our marbles are natural products and are performed according to procedures that do not involve the use of acids or polluting products. So they are not harmful to the environment and to the health of the people who inhabit it. For Grassi 1880 Cave respect for the environment and for the health is a moral and social responsibility that is transferred as well as the commitment within the laws, even in the study of zero-impact solutions. Even products designed for the protection and cleaning of our goods, respect LEED standards (Leadership in Energy and Environmental Design standards; are parameters for sustainable building and indicate the requirements to build eco-friendly buildings, able to ensure maximum sustainability and the full self-sufficiency in terms of energy).