gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1992.056.384.22 Book Reviews Heavy Minerals in Colour Nichols G. 9 1992 56 384 434 435 Mange M. A. Maurer H. F. W. Heavy Minerals in Colour London Chapman and Hall 1992 Price £ 50.00 Copyright © 1992, The Mineralogical Society 1992