Han purple and Han blue
ARTIFICIAL BARIUM COPPER SILICATE PIGMENTS DEVELOPED IN ANCIENT CHINA DURING THE HAN DYNASTY
BaCuSi2O6; Chinese Blue; Han purple; Chinese Purple; Han Blue; Han Purple; Han blue; Han Purple and Han Blue; Han blue and Han purple; Chinese purple and Chinese blue; Chinese blue and Chinese purple; Chinese purple; Chinese blue; BaCuSi4O10; Barium Copper Silicate; Barium copper tetrasilicate; Barium copper silicate; Barium Copper Disilicate; BaOCuO(SiO2)4; BaOCuO(SiO2)2; Barium copper disilicate; Barium Copper Tetrasilicate
Han purple and Han blue (also called Chinese purple and Chinese blue) are synthetic barium copper silicate pigments developed in China and used in ancient and imperial China from the Western Zhou period (1045–771 BC) until the end of the Han dynasty (circa 220 AD).