gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1994.058.392.21 Short Communications Comments on ‘An Unusual Octahedral Diamond’ by A. Yacoot and M. Moore Lang A. R. H. H. Wills Physics Laboratory, University of Bristol, Royal Fort, Tyndall Avenue, Bristol BS8 1 TL, UK 9 1994 58 392 508 512 15 10 1993 Copyright © 1994, The Mineralogical Society 1994 diamond non-faceted growth X-ray topography