Venetian plaster is a wall and ceiling finish consisting of plaster mixed with marble dust, applied with spatula or trowel in thin, multiple layers, which are then burnished to create a smooth surface with the illusion of depth and texture. When left un-burnished, Venetian plaster has a matte finish that is rough and stone-like to the touch. Un-burnished Venetian plaster is also very brittle and damages rather easily.
When applied correctly, Venetian plaster can be used to create a highly polished, rock-hard, marble-like finish.
Venetian plaster can be tinted, or colored using natural or synthetic colorants. The ability to tint Venetian plaster is especially helpful when a specific color of ``marble`` is desired, or when a color that does not exist naturally is wanted. Through the application of a top layer of sealant, Venetian plaster can also be rendered waterproof