The word mosaic means a role or image that is made up of small pieces of colored stone, glass, ceramics, tiles, and so on. Even scraps of paper or anything else can be used. Colored glass and stones have been the most used in the past, and today they can be used for ceramics, tiles and new materials that are produced under different names for the same purpose.
Glass has been precious, decorative in the very distant past, and today, though mass-produced, inexpensive and varied in color, it has not lost its artistic dimension, but has entered a new field of design and architecture.
In ancient Iranian architecture, the windows were decorated with small pieces of colored glass in a variety of beautiful geometric patterns. Some of these windows are called Orsi. Examples of these windows can be seen in the Golestan Palace. This art, which has always been part of human life since ancient times, will create more beautiful perspectives on one’s life