1 contant 97%min 21,CaCO3 97%min,MgO 0.6%max,SiO2 1%max,Fe2O3 0.06%max 2,CaO 53%min 3,bulk transport Calcium carbonate product index 1) CaCO3 ≥97%,MgO ≤0.6%,SiO2 ≤1%,Fe2O3 ≤0.06%. Shandong CITIC Calcium Industry Co.,Ltd. We have our own quarry. After the professional eastimating, the total storage is more than 4 billion Metric tons of limestone. And the content of Calcium is the best one in China ...