gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1984.048.349.17 Short Communications Barian Muscovite from Franklin, New Jersey Dunn Pete J. Department of Mineral Sciences, Smithsonian Institution, Washington, DC 20560, USA 12 1984 48 349 562 563 13 2 1984 Copyright © 1984, The Mineralogical Society 1984