Altona Mining intends to investigate the use of AmmLeach® technology for the recovery of copper from the oxide ore zone at its Little Eva deposit in northwest Queensland, Australia.
It is intended that Alexander Mining’s wholly owned subsidiary, MetaLeach will commence amenability test work at its laboratory facility on representative mineralised material samples shortly.
Altona is a Perth, Australia based company which was formed in 2010 following the merger of ASX listed companies, Vulcan Resources and Universal Resources. The company’s two key projects are Outokumpu in Finland and Roseby in Queensland, Australia.
Roseby is one of the largest known copper resources in Australia and has had a Definitive Feasibility Study completed in 2009. Permitting is nearing completion and Altona is optimising the study to target copper production up to 40,000 t/y.
Little Eva is one of the deposits that forms part of Altona’s Roseby project and is a typical IOCG (iron-oxide copper-gold) deposit. A significant 15-30 m thick cap of oxide copper mineralisation (goethite, malachite, etc.) overlies the primary mineralisation (feldspar-quartz- hematite-carbonate-chalcopyrite). The primary mineralisation is a large and simple bulk tonnage copper-gold sulphide deposit which will be processed via an industry standard flotation plant to produce a copper-gold sulphide concentrate.