gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1944.027.186.02 Notes on the Cleaving and Sawing of Diamond Grodzinski Paul A.M.I.Mech.E. 9 1944 27 186 47 50 Copyright © 1944, The Mineralogical Society 1944