gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1966.036.276.05 On the Preferred Crystallographic Orientation of Garnet in Some Metamorphic Rocks Powell Derek Ph.D. Department of Geology, Bedford College, University of London 12 1966 36 276 1094 1109 10 2 1966 Copyright © 1966, The Mineralogical Society 1966 Summary

A study of inclusions within garnet porphyroblasts demonstrates that planar inclusion bands and trails lie sub-parallel to one of the {110} planes of the host. The inclusions provide a relic of a rock fabric that existed before the growth of garnet. It is suggested that this fabric has determined the crystallographic orientation of garnet and may have arisen by the nucleation and epitaxial growth of garnet within or upon the mica lattice.