What is the base of the The Daibutsu of Kamakura made of?

The Great Buddha of Kamakura, known as the Daibutsu, is primarily made of bronze. It was cast using the lost-wax technique and is set on a stone pedestal. The statue stands at approximately 13.35 meters (43.8 feet) tall and was completed in 1252. Over the years, it has developed a green patina due to oxidation of the bronze.