The construction industry uses both the natural and the synthetic forms of gypsum in Portland cement manufacturing. Although the amount of gypsum used in the mix represents a small percentage of the volume of all ingredients, gypsum has important functions.
Gypsum is a valuable mineral, as all minerals are. One of its most prominent and beneficial uses is in drywall (sometimes also called gypsum board) thanks to its fire retardant properties and ability to absorb heat energy. The mineral is prevalent and can be found in very large crystals commonly.