This sounded interesting so I looked it up; it seems it might be a popular misconception?
> The term asbestos is traceable to Roman naturalist Pliny the Elder's manuscript Natural History and his use of the term asbestinon, meaning "unquenchable". While Pliny or his nephew Pliny the Younger is popularly credited with recognising the detrimental effects of asbestos on human beings, examination of the primary sources reveals no support for either claim.
I've found many references to Pliny and Strabo around the web, but as the Wikipedia fragment implies yet no actual quotation about its dangers. It seems like a very specific myth to just come up though; my interest remains. Do let me know if you know more about this.
De re Metallica 1500's on the other hand mentions dangers to workers and environmental harm that mining caused. I've also seen references to the Romans banning lead smelting in Italy. Better to force slaves to do that work at the fringes of the empire than give up productive farmland close to Rome.
"But besides this, the strongest argument of the detractors is that the fields are devastated by mining operations, for which reason formerly Italians were warned by law that no one should dig the earth for metals and so injure their very fertile fields, their vineyards, and their olive groves. Also they argue that the woods and groves are cut down, for there is need of an endless amount of wood for timbers, machines, and the smelting of metals. And when the woods and groves are felled, then are exterminated the beasts and birds, very many of which furnish a pleasant and agreeable food for man. Further, when the ores are washed, the water which has been used poisons the brooks and streams, and either destroys the fish or drives them away."