Silk traces found on 101 ancient Sanxingdui artefacts in China

Scientists examining 3,000-year-old objects from the Sanxingdui site in China's Sichuan province found traces of silk on 101 artefacts, including bronze masks and gold, jade and ivory items. Using microscopic and chemical tests, the study in the journal Antiquity suggests the ancient Shu people wrapped or covered valuable objects in silk during religious ceremonies.