Crude gypsum is used like a fluxing agent, fertilizer, filler in paper and textiles, and retarder in portland cement. About three-fourths of the whole generation is calcined for use as plaster of paris and as creating components in plaster, Keene’s cement, board solutions, and tiles and blocks. Above geological time https://www.propanraya.com/id/produk/eco-gypsum-ee-4050