Dolomite, it is natural stone, the formula:CaMg[CO3]2,the hardness:3.5-4,gravity:2.85-3.2. MgO:20% min, CaO:28%min, 45um 99% passing through,SiO2:1-1.5%, Fe2O3:1-1.5%,  LOI <1%.  For more information, please contact with us.

dolomite powder