gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1962.033.259.08 X-Ray, Optical, and Morphological Observations on Hodgkinsonite from Franklin Furnace1 Roberts W. M. B. Bureau of Mineral Resources, Geology, and Geophysics, Canberra, A.C.T., Australia. Quodling F. M. Department of Geology and Geophysics, The University of Sydney, Sydney, Australia.

Published by permission of the Director, Bureau of Mineral Resources.

 12 1962 33 259 343 346 Copyright © 1962, The Mineralogical Society 1962 Summary

Re-examination of hodgkinsonite by optical and X-ray methods has shown the desirability of adopting a setting different from that selected by Palache and Schaller and by Rentzeperis. In the new arrangement the b and c axes are interchanged and the original negative end of the b-axis becomes positive. A table of angles for the common forms is given, also X-ray powder data and a space group determination.