Work included froth flotation, leaching, solvent extraction and stripping tests. Estimates of capital costs and operating costs were made for oxide and sulphide flotation plants and a more complex plant comprising acid leaching, solvent purification...

During January and April 1966, 10,611 feet of reconnaissance and infill percussion drilling plus 300 feet of auger drilling were carried out on SML 96, around the former Main Open Cut and Lagoon workings of the historic Mount Gunson copper mine, with...