The Calcium Carbonate (Oyster Precipitated) is a chemical compound that is procured from rocks across all constituent. Apart from this they are utilized in industry & is taken out by quarrying or mining. The Calcium Carbonate (Oyster Precipitated) can be formed using a pure extracted source & is made using calcining crude calcium oxide. Further they are processed by sophisticated techniques and modern machineries under the supervision of skilled workers. Further they are tested by our quality assurance team for any impurity.