Terracotta army has egg on its face (ABC News in Science)

abc.net.au — China's terracotta army, a collection of 7000 soldier and horse figures in the mausoleum of the country's first emperor, was covered with beaten egg when it was made. According to German and Italian chemists who have analysed samples from several figurines, the egg was as a binder for colourful paints, which went over a layer of lacquer.