U.S. Usage
~3%
Risk Level
Highest
Fiber Type
Straight
Color
Blue to blue-gray
About Crocidolite Asbestos
Crocidolite, commonly called blue asbestos, belongs to the amphibole family of asbestos minerals. Straight, extremely fine needle-like fibers characterize this mineral.
Studies show crocidolite has the highest mesothelioma incidence rates. Its thin, sharp fibers are most likely to lodge in lung tissue.
Primary Uses
Crocidolite was used in various industrial and commercial applications:
- Spray coatings
- Pipe insulation
- Cement products
- Shipbuilding
Common Products Containing Crocidolite
Products that historically contained Crocidolite include:
Learn more about specific asbestos-containing products:
Health Risks
Exposure to Crocidolite asbestos can cause:
- Mesothelioma — Aggressive cancer of the lung lining, heart lining, or abdominal lining with a median survival of 12-21 months
- Lung cancer — Risk increases significantly, especially with combined smoking exposure
- Asbestosis — Progressive scarring of lung tissue causing breathing difficulties
- Pleural disease — Thickening, plaques, and effusions in the lung lining
Symptoms may not appear until 20-50 years after initial exposure, making early detection challenging.
Where Crocidolite Was Found
Crocidolite was primarily sourced from:
- South Africa
- Australia
- Bolivia
Peak usage in the United States occurred during the 1940s-1960s.
Current Regulatory Status
Status: Banned in U.S. since 1989
Despite regulations, legacy asbestos remains in millions of buildings constructed before 1980. Renovation, demolition, and maintenance activities continue to expose workers and building occupants to asbestos fibers.
Other Asbestos Types
The information on this page is intended for educational purposes only and should not be considered medical or legal advice. Consult with healthcare providers for medical questions and qualified attorneys for legal options.