The new South Sudan flag keeps the green, with its connection to the Arab world, and the red, white and black and adds blue and gold to set itself apart. In my searching for information, I was reminded of grade school projects that required the memorizing of flags.
Ceramic tile is made from natural clay, sand and water. These materials are molded to form square or rectangular tiles and then baked in a kiln to remove most of the moisture. Porcelain tile is also made from clay but tends to be made using denser types of clay than ceramic.
Hand-painted Chinese porcelain tiles on the floor of a Jewish synagogue in Cochin, Kerala, India. Porcelain tiles are ceramic tiles commonly used to cover floors and walls, with a water absorption rate of less than 0.5 percent. They can either be glazed or unglazed.