Our White Calcium Carbonate Powder includes over 4% earth’s crust. It is discovered throughout the world in varied grades. Furthermore, the most common forms of our powder are marble, limestone, chalk and more that are made with the shell sedimentation of minute fossilized coral, shelfish and snails over numerous decades. Albeit, all the forms are similar in terms of chemical formulation yet they vary in numerous different aspects such as homogeneity, thickness, whiteness and purity. In addition, the provided White Calcium Carbonate Powder is among the most versatile and beneficial materials acknowledged to man in today's time for numerous applications.