Chrysotile asbestos
The mineral chrysotile is by far the most widely used form of asbestos, of which six species exist. At the time asbestos was still a widely used raw material, this mineral accounted for around 98% of world production. It is the only type of serpentine fiber type asbestos, with the composition Mg3 (Si2O5) (OH) 4. It is called white asbestos and in contrast to the blue form (crocidolite) and the brown (amosite), which are both amphibians. The mineral occurs mainly in metamorphic rocks. Externe link
wiki
