Protect the unique esthetic sense of rain stone to keep it from deterioration, the depositing method is very important, below two kindsintroduces for everybody. 1. the acid-proof against alkali. The main chemical composition of rain stone is the silicon dioxide, basically belongs to the neutrality, its geological environment which locates in the nature, also basically belongs to the neutrality. 2. guard against heat against insolation. Heating or under glare insolation, along with temperature markup also will change the pigment ion and cause the rain stone deterioration. When storage must leave the heat source, must avoid under the sunlight the insolation.