Citation needed. Seems that the few available Roman primary sources do not support it: Rachel Maines "Asbestos and Fire" pp. 27-28 https://books.google.com/book

Citation needed. Seems that the few available Roman primary sources do not support it: Rachel Maines "Asbestos and Fire" pp. 27-28 https://books.google.com/books?id=5r2jEGLvxP4C&pg=PA28 https://books.google.com/books?id=5r2jEGLvxP4C&pg=PA28 AFAIK work in any Roman mine was considered a death sentence in the long run.