Gypsum

Cement is used everywhere imaginable: for example, as a binder for concrete, mortar or screed, making it one of the world's most important building materials. If we just consider concrete, most of our infrastructure and architecture simply wouldn't be conceivable without it. And gypsum plays a similarly important role inside buildings. Be it in the form of gypsum plaster, gypsum plasterboard or wall panels, as a lightweight material with an easy-to-smooth surface offering good resistance to fire, it's hard to imagine a world without gypsum.