Light calcium is a very important inorganic filler, which is a common filler in rubber, plastic, paper making, ink, paint and building materials. The obvious difference between light and heavy calcium carbonate is the difference in PH value, fineness and particle shape. The shape of light carbon calcium calcium is mainly spindle and cube, while heavy calcium acid is mainly irregular particles. The difference in fineness and shape causes the difference in pseudospecific gravity. As for the use of heavy calcium or light calcium, customers can choose the appropriate products and specifications according to the application industry or use, in order to achieve the desired use effect.