The full bag from the manufacturer is a 50# bag; white bag, black text Marblewhite
Calcium Carbonate, commonly referred to as whiting, is a stable and insoluble material of calcium used to introduce calcia to clay bodies and glazes. This material is used by many different industries, but the calcium carbonate made for the ceramic industry will be the only one that will work properly in clay and glazes. Sometimes used in low fire clay bodies to reduced fired shrinkage and act as a whitener!
