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. In the aquaculture industry, the stone on the pig, chicken, fish yield increase access to effective, 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 degrees, with fifty-eight kinds of stone has been tested and beneficial to the body length of elements and trace elements, can complement the deficiency of minerals in feed, more importantly, many of which various mineral elements in vivo enzyme activity center, can stimulate the enzyme activities to enhance the catalytic activity, thereby improving the animal metabolism, promote digestion and absorption of nutrients, enhanced resistance to diseases, to promote animal growth and development and other functions . 
 Stone can absorb free metal ions in water, stone by flooding, could extract useful organisms on the human body and major elements K, Ca, Mg and Si, Fe, Zn, Cu, Mo, Se, Mn, Sr, Ni, V, Li, Co, Cr, I, Ge, Ti and other trace elements, stone dissolution in aqueous solution but also essential amino acids the human body.