The research, published in the journal Archaeological and Anthropological Sciences, reveals the red stains on the woman’s teeth were caused by the mercury-based mineral cinnabar. Cinnabar, a red form ...

In a first-of-its-kind discovery, archaeologists in China have unearthed the 2,200-year-old burial of a woman whose teeth had been painted with cinnabar, a toxic red substance. Cinnabar is a ...