+**Gypsum** is a soft [sulfate](/wiki/sulfate) [mineral](/wiki/mineral) composed of hydrous calcium sulfate. Often white and found in vast beds, it is a key material for plaster, drywall, and fertilizer.
+## See also
+- [Plaster](/wiki/plaster)
+- [Drywall](/wiki/drywall)
+- [Mineral](/wiki/mineral)
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