含钙矿物，例如以方解石、石灰石等为代表的碳酸钙；以硅灰石为代表的硅酸钙以及以石膏为代表的硫酸钙等天然高钙矿物，资源分布广、储量大，是重要的非金属矿物原料，具有广阔的市场和极大的使用价值。它们在建筑材料、造纸、塑料、橡胶、油漆、涂料、陶瓷、冶金，以及医、农 Calcium-containing minerals such as calcium carbonate typified by calcite and limestone; calcium silicate typified by wollastonite and natural calcium minerals such as calcium sulfate typified by gypsum are widely distributed in resources and large reserves are important Non-metallic mineral raw materials, with a vast market and great value. They are in building materials, paper, plastic, rubber, paint, paint, ceramics, metallurgy, and medicine, agriculture