We are recognized as one of the prominent Suppliers of Calcium Carbonate Powder. We have carved a niche for ourselves in Wholesale Calcium Carbonate Powder business. PCC stands for Precipitated Calcium Carbonate-also known as purified, refined or Synthetic Calcium Carbonate. It has the same chemical formula as other types of calcium carbonate, such as limestone, marble and chalk: CaCO3. The calcium, carbon and oxygen atoms can arrange themselves in three different ways, to form three different calcium carbonate minerals. The most common arrangement for both precipitated and ground calcium carbonates is the hexagonal form known as calcite. A number of different calcite crystal forms are possible: scalenohedral, rhombohedral and prismatic. Less common is aragonite, which has a discrete or clustered needle orthorhombic crystal structure. Rare and generally unstable is the vaterite calcium carbonate mineral.