Asbestos, a naturally occurring mineral celebrated for its durability, heat resistance, and insulating capabilities, comes in two main forms: friable, which can be easily crumbled or reduced to powder, and non-friable, more solid and less likely to release fibers unless damaged.

Historically, both forms were extensively used in various building materials for insulation and fire retardation.

The discovery of its hazardous effects on health prompted strict regulations regarding its use and removal.