gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1989.053.373.17 Short Communications Revision of the Lanthanite Group and New Data for Specimens from Bastnäs, Sweden, and Bethlehem, USA Atencio Daniel Instituto de Geociências, Universidade de São Paulo, Caixa Postal20899, 01498--São Paulo, SP, Brasil Bevins Richard E. Department of Geology, National Museum of Wales, Cardiff, CF1 1XL, Wales, UK Fleischer Michael Department of Mineral Sciences, Smithsonian Institution, Washington, DC 20560, USA Williams C. Terry Department of Mineralogy, British Museum (Natural History), Cromwell Road, London SW7 5BD, England, UK Williams Peter A. Department of Chemistry, University College, PO Box 78, Cardiff, CF1 1XL, Wales, UK 12 1989 53 373 639 642 10 1 1989 20 3 1989 Copyright © 1989, The Mineralogical Society 1989 lanthanite group minerals Bastnäs Sweden Bethlehem USA rare-earth minerals