gypsum.

Ans: Gypsum: In the preparation of phosphate fertilizer, gypsum is used as a raw material It is also used in cement industry, paper manufacturing, plaster of Paris sulphuric acid, paint and polish industry and also in rubber industry. In Pakistan gypsum is found in Khewra, Dandot, Daud Khel, Quaidabad, Rohri Kohat, Dera Ghazi Khan, Loralai, … Read more