Stone is a kind of biological activity of the compound has a mineral or medicinal rocks. 
 The main stone is the inorganic chemical composition of aluminosilicate. Including SiO2, Al2O3, Fe2O3, FeO, MgO, CaO, K2O, Na2O, TiO2, P2O5, MnO, etc., it also contains all the major elements required for animal, such as: K, Na, Ca, Mg, Cu, Mo and other trace elements and rare earth elements, about 58 species. 
 Stone with adsorption, solubility, regulatory, biological activity and mineralization of the properties. Modern research shows that stone with a variety of space structures, and with adsorption to eliminate toxic substances in the intestine, the bacteria have a certain adsorption and release, thereby reducing the body against bacteria into the degree of stone has been tested with five eighteen beneficial to the body length of elements and trace elements. 
 Stone is mainly used for health care, food, beverage and water purification, sewage treatment, corrosion, odor, preservation, decontamination, and planting and breeding industry and other fields.