Fig. 3From: Scientific analysis of tie luo, a Qing Dynasty calligraphy artifact in the Palace Museum, Beijing, ChinaXRD patterns of reddish pigments (a) and database standard of cerussite (PbCO3, b), hydrocerussite (Pb3(CO3)2(OH)2, c) anglesite (PbSO4, d) and aragonite (CaCO3, e)Back to article page