White powder or colorless, Soluble in dilute acids, hardly soluble in water. Completely: the relative density of 2.83, melting point 825 ℃ (breakdown). The calcite: the relative density (d25.2) 2.711, melting point 1339 ℃ (10.39 MPa) and Stimulating.
Be widely used in plastic, rubber, and paint industry as filler, it can facilitate the mould release, improve the process ability of products, enhance the surface finish and the flexing resistance, increase the quantity of filler and reduce the production cost

