Aras travertine plaque Travertine stone is one of the types of building stone that is produced in Iran. There are many mines in the country where this stone is extracted. After extracting the stones, they are sent to the factories for processing. It contains a lot of adhesive power, which can be used as a facing stone in the building at high altitudes with this advantage. The reason for the popularity of this stone is its adhesion, great variety of colors, and the beauty of its patterns.