Actinolite Asbestos

**Semantic type:** Hazardous or Poisonous Substance

**Definition:** A naturally occurring, bright green, fibrous amphibole asbestos mineral found in metamorphic rocks and as a contaminant in amosite asbestos. Chronic inhalation of its dust may cause asbestosis and increases the risk of respiratory tract cancer, mesothelioma and other lung cancers. Actinolite asbestos is a known human carcinogen. (NCI05)