Question

How is Gypsum formed?

Answer 1

Gypsum ${\mathrm{CaSO}}_4.2{\mathrm{H}}_2\mathrm{O}$ can be deposited from the following source:

• Lake and seawater
• Volcanic vapours
• Sulphate solutions in veins
• Hot baths
• Through near-surface exposures, the groundwater can hydrate hydrothermal anhydrite in veins into gypsum.

Therefore, by the above ways Gypsum ${\mathrm{CaSO}}_4.2{\mathrm{H}}_2\mathrm{O}$ can be synthesized.