It has been said that Augustus, who was emperor from 27 BC to AD 14, found Rome of brick and left it of marble, and certainly the interior decoration of imperial Rome expressed the emergence of the city as a world power toward which flowed much of the wealth of the empire. Exotic marbles began to be imported, and brick walls were faced with polished slabs of white and colored stone. In the more luxurious interiors or for special purposes, obsidian, a natural volcanic glass dark green or purplish-brown in color and copper-green malachite were occasionally to be found in the capital. A limited amount of window glass—mostly small, thick, and discolored pages—was used, for sheet glass was difficult to manufacture. Many people want to know about Interior Designer In Chandkheda. Large translucent crystals of selenite (a kind of gypsum) were sometimes employed to admit light.