What are the types of asbestos?

There are two general types of asbestos: amphibole and chrysotile (fibrous serpentine). Amphibole fibers are brittle, have a rod or needle shape, and are less common in commercial products. Chrysotile asbestos has long, flexible fibers. This type of asbestos is most commonly used in commercial products. Exposure to both types of asbestos increases the likelihood of developing asbestos-related diseases, though amphibole fibers tend to stay in the lungs longer, and thought to more likely increase the occurrence of disease, such as mesothelioma.