gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1993.057.388.20 Book Reviews Hey's Mineral Index: Mineral Species, Varieties and Synonyms Howie R. A. 9 1993 57 388 549 549 Clark A. M. Hey's Mineral Index: Mineral Species, Varieties and Synonyms 1993 Chapman and Hall and The Natural History Museum London Price £50.00 Copyright © 1993, The Mineralogical Society 1993