Qashani or Kashi is the method of mosaic production in the 19th century. The mosaic technique uses Persian-like floral-depicting 4- or 6-sided glazed tiles. This mosaical feature can be seen in the Dome of the Rock in Jerusalem. In Morocco, the process is known as zillij. Kashi the abbreviated form of Qashani was also introduced to Sindh and Multan where numerous examples of shrines and mosques embellished with blue, white and green tile work exist.
A ceramic-tiled wall on Emarat badgir building side in Golestan Palace compound, Tehran, Iran