D.AUCLAIR,PUBLIPHOTO DIFFUSION / SCIENCE PHOTO LIBRARY D.AUCLAIR,PUBLIPHOTO DIFFUSION / SCIENCE PHOTO LIBRARY
Asbestos. Miner pulling strands from a lump of mined white asbestos. Asbestos is the name given to several types of fibrous silicate mineral groups that have high resistance to heat, tensile strength and chemical stability. White asbestos (chrysotile) is obtained from serpentine minerals found in metamorphic rock. Like other types of asbestos, it is banned in many countries but its use is still permitted in some. Asbestos has been linked to the pulmonary disease asbestosis and mesothelioma (cancer). Photographed at the Thetford Mines, Quebec, Canada.
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