Which asbestos type is known for its serpentine structure?

Chrysotile is recognized for its serpentine structure, which is characterized by a curled, coiled appearance reminiscent of serpents. This distinctive structure allows chrysotile fibers to be flexible and longer compared to other types of asbestos, which typically have a needle-like or straight structure. The serpentine structure contributes to chrysotile's use in various applications, such as insulation and fireproofing materials. Its unique characteristics have made it the most prevalent type of asbestos in commercial use.

In contrast, the other types of asbestos mentioned, such as amosite and crocidolite, feature amphibole structures, which are typically characterized by straight, needle-like fibers that are more rigid and brittle. Vermiculite is not an asbestos type but rather a mineral that can sometimes be associated with asbestos contamination in certain sources.