gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1990.054.377.03 Mineralogy and Petrology Al-poor and Al-rich Orthoamphiboles: A Mössbauer Spectroscopy and TEM Study Ferrow Embaie A. Ripa Magnus Department of Mineralogy and Petrology, Institute of Geology, University of Lund, Sölvegatan 13, 232 62 Lund, Sweden 12 1990 54 377 547 552 17 7 1989 19 4 1990 Copyright © 1990, The Mineralogical Society 1990 Abstract

Mössbauer spectroscopy and electron microscopy were combined to study one Al-poor anthophyllite and one Al-rich gedrite. TEM show that Al-rich gedrite is not homogeneous and that the complexity of its Mössbauer spectrum is due to sub-microscopic intergrowth of chlorite and lizardite.

 Keywords anthophyllite gedrite chamosite lizardite Mössbauer spectroscopy TEM