Sh. Chen et al., MOSSBAUER STUDY OF THE FIRING TECHNOLOGY OF THE MOON-WHITE JUN PORCELAIN IN CHINESE YUAN-DYNASTY, Hyperfine interactions, 91(1-4), 1994, pp. 657-661
The moon-white Jun porcelain glaze contains Fe2O3, Fe3O4 and structura
l iron. The firing atmosphere of ancient Jun kilns was modestly reduct
ive. The firing temperature was slightly above 1250 degrees C. The gla
ze color appears moon-white, and is related to the low concentration o
f Fe2+. The coordination numbers of Fe2+ and Fe3+ are both 4.