Definition
A group of silicate minerals with a layered, sheet-like crystal structure. Chrysotile (white asbestos) is the only asbestos mineral from the serpentine group and accounts for roughly 95% of all asbestos used commercially worldwide. Unlike the straight, needle-like fibres of amphibole asbestos, serpentine chrysotile has curly, flexible fibres. Although once considered less hazardous than amphibole forms, chrysotile is now recognized as carcinogenic by all major health authorities.
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Chrysotile (White Asbestos)
The most commonly used type of asbestos (CAS 12001-29-5), accounting for approximately 95% of asbestos found in buildings. Chrysotile is a serpentine mineral with curly fibers, also known as white asbestos. While historically considered less dangerous than amphibole asbestos, it is now recognized as carcinogenic and capable of causing mesothelioma and other asbestos-related diseases.
Amphibole Asbestos
A group of asbestos minerals with straight, needle-like fibers that are considered more harmful than chrysotile. Includes crocidolite (blue asbestos), amosite (brown asbestos), anthophyllite, tremolite, and actinolite. Amphibole fibers are more durable in lung tissue and are associated with higher rates of mesothelioma. These types are less common but more dangerous when exposure occurs.
Asbestos
A group of naturally occurring fibrous minerals composed of thin, needle-like fibers. Asbestos was widely used in construction and manufacturing due to its heat resistance, strength, and insulating properties. When disturbed, asbestos releases microscopic fibers that can be inhaled, causing serious health problems including lung cancer, mesothelioma, and asbestosis. All types of asbestos are now recognized as carcinogenic.