"Amazing Asbestos" By Keasbey & Mattison
Stone that turns to floss

Though Asbestos is Rock, When mined once broken

it can be pulled apart... Actually makes a fleece

as soft and light as a wisp of wool...

This ad from the 1950s proclaims the miracle properties of asbestos, but it was identified as a serious health hazard in the 1920s ...