gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1986.050.358.24 Short Communications Cathodoluminescence of Phenakite Lottermoser Bernd G. Department of Geology, University of Newcastle, New South Wales 2308, Australia 12 1986 50 358 733 734 11 2 1986 16 3 1986 Copyright © 1986, The Mineralogical Society 1986 cathodoluminescence phenakite Umbertana South Australia