Here’s an interesting article about the occasional Roman pouring of liquid gypsum in the burial process. Archaeologists in York have used 3D scans to study this unusual practice: The remains of a liquid gypsum burial from a long and narrow stone coffin. The gypsum cavity reveals that the body was once wrapped in cloth and that the poured gypsum did not cover the feet. (Image credit: Image courtesy of York Museums Trust; http://yorkmuseumstrust.org.uk/; (CC BY-SA 4.0))   ht