Maifan Stone Performance And Shaanxi Huxian Pacific Medical Stone Development And Utilization Of Research

Maifan stone is a traditional Chinese herbal medicine material, Compendium of Medical (Ming) had put down in writing, Maifan stone is sweetness and gentleness, and no toxicity, Ulcer could be cured by Maifan stone. But Maifan stone had not been handed down from past generations after Song and Ming dynasty. Maifan stone has been exploited in all-round way since seventies. Now not only it have been a traditional Chinese herbal material, but also food, nursing production, cleaning agent, fodder and the like are produced by Maifan stone. So the Chinese herbal medicine material which had single one use has been developed important multipurpose material.Definition study of Maifan stone, determine the nature study of Maifan stone, definite quantitative determination study of Maifan stone have merely remained at the primary experience stage. Up to now, there is no united technical standard of Maifan stone's determine the nature which is used to define the material of Maifan stone, it is a semi-weathering material of mid-acidic intrusive rock, it contains many trace elements which are important to human being. These elements have organisms' activity and they have no toxicity, Maifan stone has been used in food, health production, drugs and so on and other uses.The author has carried out the exploration of Maifan stone's cause of formation in order to deeply study the distribution and output regular pattern Maifan stone. There are two stages to crux Maifan stone's formation, the first stage is the forming stage of primary material, that is to say, the stage of mother rock formation, in this stage, the latter hypabyssal intrusive of crystallization fractionation and self-metamorphic process are an important factor to make sure them have many trace elements. The second stage is stage of the matter transfers the activated matter, that is to say, minerals build up their surface area after passing though physical weathering, Maifan stone form a lot of clay mineral, oxide, oxhydroxide and collide mineral after passing though chemical weathering .It makes nutrition elements transform from crystal state to adsorption state and it expands the activation of mineral, in the latter stage, it makes Maifan stone have many special physicochemical adjusting character, for example, pH and foi bi-directional absorptive and ion exchange character ,so these characters expand Maifan stone's uses.The author analysis and summary in details the important physicochemical character of Maifan stone, including mineralize, organism activity bi-directional adjusting character, decolour, and no poisonous character and so on. We discuss the Maifan stone in theory and experimental data, we point out that Maifan stone have the reason of this character and mechanism.This article's another important content is studying and exploiting Maifan stone. Taiping Maifan mineral contacts with migmatitic granite and grandiosity, the mother rock is granite which include a lot of potassium elements and the major mineral of Maifan stone is plagiocase, k-feldspar, minor mineral is biotite, muscovite, quartz and so on., rock chemistry pattern is calcalkali series, major element and rare-earth elememt are similar with China Maifan stone.We adopt three different mineralizetreating of Maifan stone, dissolving elements include K, Na, Ca, Mg, Fe, Mn, Cu, Pb, Zn, Ni, Co, P, B, Cr. dissolving capacity of Maifan stone is affected by granularity, density, soaking-time, soaking-temperature and pH. Absorptive experiments show that absorptive are mainly physical absorptive, chemistry absorptive and research show Tai Ping Maifan mineral has very important values in drink production, food, cleaning water, fertilizer and mineral fodder, environment protection , Tai Ping Maifan stone has its advantage on cleaning water, desalination of sea water, medical treatment and health care, flowers and plants and aquatic farming.