Plaster
Plaster is a material similar to mortar and cement. Plaster of Paris is one kind, made from gypsum by heating it. It is used to make copies of footprints, fossils, skeletons, and to set fractured bones. Other kinds of plaster are used for buildings and other purposes. Decorative plaster is more usually called stucco.
Plaster Media
Stucco plaster reliefs, such as this work at the Château de Fontainebleau, were hugely influential in Northern Mannerism. A plaster low-relief decorative frieze is above it.
Clay plaster base coat on split oak lath held in place with straw and manure, covered with a lime plaster top coat, Old Economy Village, Pennsylvania (1827)
An orthopedic cast for the hand made out of gypsum plaster
Early 19th Century plasterer at work – painting by John Cranch (1751–1821)
19th century stucco plasterwork from House of Borujerdies in Kashan, Iran