Regulated Asbestos Minerals: Crocidolite Asbestos

Blue asbestos” Sodium iron silicate

  • Amphibole (needle-like)

  • Acid resistant

  • Somewhat lesser heat resistance

  • Commonly used to insulate steam engines. It was also used in some spray-on coatings, pipe insulation, plastics and cement products.

  • Less than 1% of asbestos-containing products