Overview of Maifanshi:Its Physi-chemical Properties and Nutritious Function in Drinking Water
Maifanshi,a sort of porphyritic pea gravel,is called in China because of its appearance similar to a big brown rice ball.In this paper,its physi-chemical properties including solubility,mineralization,bioactivity and adsorption are reviewed.Particular concern is paid to the nutritious function of Maifanshi to modify drinking water.