We are a leading company specializing in the business of offering our clients Chalk B.P. (Calcium Carbonate Oyster Shell). There is a high content of calcium carbonate in mussel and oyster shells. This extract is used in the formulation of medicine, in construction or as filler in polymer materials. The thermal and mechanical properties of polypropylene with CaCO3 obtained from oyster and mussel shells and with commercial CaCO3 were analysed. Chalk B.P. (Calcium Carbonate Oyster Shell) comes in different quantity packaging options. We offer this extract at reasonable prices.