1. Mineral Exploration Cooperative Research Centre, Department of Earth & Environmental Sciences, School of Physical Sciences, University of Adelaide, SA 5005 Australia
2. Northern Territory Geological Survey, Department Industry, Tourism and Trade, Darwin, NT 0800, Australia
3. John de Laeter Centre, Curtin University of Technology, Perth, WA 6845, Australia
4. Adelaide Microscopy, The University of Adelaide, Adelaide, SA 5005, Australia
5. Minerals, Energy and Groundwater Division, Geoscience Australia, GPO Box 378, Canberra, ACT 2601, Australia