Maifanite is a natural drug ore. It contents potassium, sodium, calcium, magnesium, phosphorus, iron and zinc elements and so on Maifanite is a natural drug ore. It contents potassium, sodium, calcium, magnesium, phosphorus, iron and zinc elements, selenium, copper, strontium, iodine, fluorine, silicic acid and other eighteen kinds of trace elements , which are necessary for the human body. ...