Answer:

Gypsum is a SOFT sulphate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSo₄.2H₂O.

When gypsum is heated at 373 K Plaster of Paris (P.O.P) is formed. This is used in building materials and construction projects work.

Heating BEYOND 180 DEGREE Celsius it gives a product called gamma ANHYDRITE. The widespread, singular use of gamma ray - neutron surveys has resulted in general misconception regarding the occurrence of porosity … Anhydrite and gypsum may produce porosity errors when average velocity or density information is used with the sonic or density logs.

Beyond 250 degree Celsius it produces beta anhydrite … A structural model for beta-CaSO4 center dot 0.5H(2)O is proposed on the basis of SR-PXD data and a trigonal unit cell (in … setting) a = 6.93145(3), c = 12.736 17(4) angstrom, Z = 6, and space group P3(1). A structural model for soluble anhydrite. This beta anhydrite doesn't react with water, it helps in MAKING gypsum an oxidizing agent at high temperature

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