Maifan Stone (Medical Stone) is a kind of nonmetal mineral, has been called as Magical Stone, Healthy Stone, Long-life Stone in Japan and Korea. It was used in medical treatment since Ancient China, as stated in "Compendium of Materia Medica" since 1578.

Maifan stone formed by plagioclase, potassium feldspar, quartz, horn blende, black mica and phosphorus fossil etc...Main chemical composition of the mineral stone is silicon aluminium sour salt including SiO2, TiO2, AL2O3, Fe2O3, FeO, MnO2, MgO, CaO, Na2O, K2O, H2O, P2O5, etc...It also aggregated with various kind of microelements and rare-earth element such as Se, Mn, Sr, Zn, Ba, Cr, V, Ni, Co, Cu, Fe, Al, Ca, Na, K, H2SiO3, Ag, P, La, Ce, Nb, Y, Be, Mg, etc. Which are essential to human body and animal.

With coral reef or spongy porous structure, Maifan Stone can strongly absorb the harmful substances such as heavy metal (lead, cadmium, chrome, Hg, copper, zinc, manganese, nickel etc. ), radio elements (uranium, thorium, radium etc. ), and hydride, titanate and mixed pathogen in water. The absorbability is better than Active Carbon. It can increase the water activity as well as adjust the PH value, makes acidulous water and alkaline water become neutral water.

Modern medicine approved that Maifan Stone can adjust metabolism of human body, accelerate blood circulation, enhance elasticity and flexibility of blood vessel and capillary vessel, diminish inflammation, detoxifcation, diuresis and help digest etc. It can functions to cure high blood pressure, angiosclerosis, pain of rheumatism, dermatophytosis and psoriasis, gastritis and gastralgia, prevent and cure cancer, etc.

Maifan Stone has the function of health care and bacteria resistance. It can be widely used in various fields related with human living, such as medical treatment and health care (pharmacal science, bathing), food & drinks (man-made mineral water, carbonated drinks, beer, wine, tea), environmental protection (water purification, sewage treatment, soil amelioration, antisepsis, deodorization, decontamination), animal breed (cattle&poultry feeding additive, improve water environment of aquaculture) ect.

Maifan is biological non-toxic and harmless.