Is vermiculite dangerous to humans

Vermiculite itself is generally considered safe for use in gardening and construction; however, some vermiculite products, particularly those mined from certain locations, may contain asbestos, which is hazardous to human health. Prolonged inhalation of asbestos fibers can lead to serious respiratory diseases, including lung cancer and asbestosis. It's important to ensure that any vermiculite used is tested and confirmed to be asbestos-free. Always follow safety guidelines and recommendations when handling any material that could potentially contain harmful substances.