1792 Oakley in (Royal Soc.) 88 407 Among these broken lumps, the Corundum stone is found.
1873 J. Richards 106 Corundum or emery wheels are now generally used for dressing both saws and cutters.
1884 F. J. Britten (new ed.) 86 The edges of holes in dials may be trimmed with corundum sticks.