“…Clinical and epidemiologic studies have shown consistently that silicosis is caused by exposure to silica dust in such occupations as mining (2,13,27,30,33), tunneling (2,13,27,33), quarrying (2,13,27,33), sandblasting (12,13,39), foundry work (13,33,36), ceramics manufacture (7,33), sculpting (19,31), pottery making (13,33), and granite cutting (34).…”