... quality,meets CP/USP/EP 2.better price 1,Classification:Magnesium carbonate 2,Appearance:white monocline crystallizes or the amorphous powder 3 ... magnesium hydroxide is more difficult than magnesiumcarbonate to dissolve). Use:1, Serves as the medicine intermediate, the absorbent, the drying agent ... the athlete competes scratches the hand to use. Heavy Magnesium Carbonate