It’s a mixture of limestone, marble dust, and water that is worked into a putty and applied to walls. Once it is dry, it lends the look of marble. Next up is gypsum plaster, popular today due to ...

But things have changed since then. Drywall, first introduced in 1916 by United States Gypsum (USG), has largely replaced plaster. Most of the dwindling number of homes with plaster walls were ...

Just why the Romans did this, though, remains a mystery. The experts that made the discovery found that the natural properties of gypsum hardened and formed a plaster-like casing, creating imprints of ...

Gypsum, a natural mineral made largely of calcium sulfate dihydrate, has a variety of uses dating back centuries, from lining walls to serve as a fire retardant for Mesopotamians to a plaster ...