Azar Sang Sorkh Travertine Quarry
Azar Sang Sorkh’s quarry and factory are located near Kalvanaq in Azarshahr County, East Azerbaijan Province. The company extracts and processes red and yellow travertine.
Red Travertine
Red travertine is a coloured travertine with tones ranging from red to burgundy and varied natural patterns. Azarshahr varieties are among its well-known Iranian examples and are used for façades and decorative building elements.