asbestos chrysotile labeled

airborne amphibole asbestiform asbestos asbestosis aspects background black building cancer capital carcinogen chrysotile closeup common construction crystals danger dangerous elongate environment environmental exposure fibrous filamentous filaments geology green group hand hazard health identification identify insulation label letters lung materials medical mesothelioma mineral mineralogy model natural naturally labeled occupational occuring phyllosilicates public removal remove sample serpentine soft warning white words marker johnson baby powder talcum controversy