Gypsum uses include: manufacture of gypsum board, cement, plaster of Paris, soil conditioning, a hardening retarder in Portland cement. Varieties of gypsum known as “satin spar” and “alabaster” are used for a variety of ornamental purposes, however their low hardness limits their durability. Gypsum can also be used:

As a soil additive (sometimes called land plaster) to improve the soil’s workability and receptivity to moisture, and to overcome the corrosive effect of alkalinity. Gypsum specifically benefits such crops as alfalfa, corn, cotton, wheat, and peanuts where substantial amounts of sulfate Sulphur are required.

As an additive in turbid water, particularly ponds, to settle dirt and clay particles without injuring aquatic life.

To create surgical and orthopedic casts.

As a food additive. Food and Drug Administration for use as a dietary source of calcium, to condition water used in brewing beer, to control the tartness and clarity of wine, and as an ingredient in canned vegetables, flour, white bread, ice cream, blue cheese, and other foods.

As a color additive for drugs and cosmetics.

A primary ingredient in toothpaste.

Be added to some bread and dough mixes as a Calcium source and baking aid.

Be used as a filler and fire retardant in plastic products.

Be used in Portland cement and special cement products for set and expansion control.

Be a source of Calcium and Sulphate Sulphur for plant growth.

Be used as a modelling material for tooth restorations.

Be an ingredient in many patching compounds.

Be used with glass to fabricate large, lightweight architectural decorations.

Be used as a mold material to fabricate custom body parts for trucks and automobiles.

Be an aid in juice extraction of some fruits and vegetables