Asbestos refers to a fibrous mineral group that was widely used in construction during the 20th century until it was banned in the 1970s. The mineral was widely used in building materials due to its heat resistance, strength and ability to act as an insulator. However, studies have linked asbestos to various health complications, including lung cancer, mesothelioma, and asbestosis. Therefore, it's imperative to ensure that any building material suspected to contain asbestos is handled professionally.