The calcium carbonate of heavy quality is made from calcite by simple machine, it has high purity and white. Used in hard moulding, synthetic leather, recycled glue, papermaking, paint, sealing strip, coating, fodder, toothpaste mainly, product of rubber and plastic etc. industrial departments. calcite (calcium carbonate of heavy quality) make to change performance, mend strongly, pack and increase the content of calcium, reduction of costs etc.