Having inked an agreement with Australia’s national science agency CSIRO, Everest Metals will use the agency’s Kick-Start program to undertake advanced geochemical and mineralogical studies at its Mt Edon project.
CSIRO’s $50,000 Kick-Start Program voucher will support investigations into the suite of alkali-metals comprising lithium, rubidium and caesium whose mineral forms occur at elevated levels in Everest’s Mt Edon project near Paynes Find in WA.
The main focus of the studies will be on the nature and distribution of the three metals throughout the extensive Mt Edon pegmatite occurrences which will ultimately contribute to the understanding of lithium and rubidium and could improve recoveries of both metals.
With caesium being one of the three elements in the triad of the lithium-caesium-tantalum (LCT) family, it is also a key indicator of “pegmatite fertility” and a core focus of study.
These indicators assist explorers in determining the likelihood of a pegmatite to carry potentially economic mineralisation which, until recently, have been referred to mostly in the context of the modern search for hard-rock lithium deposits which are usually hosted by pegmatites.
LCT-style” pegmatites, while named for lithium, caesium, and tantalum, also relate to other metals like rubidium, beryllium, niobium, tin and sometimes even iron, manganese and rare earth elements.
The collaborative study will also explore the correlation between rubidium and lithium in their various mineral phases.
Overall, the venture aims to provide Everest with valid, data-based guidance towards identifying exploration areas of greatest potential for the metals.
It may also enhance and streamline recoveries across a variety of metals via a single process with minimal additional flow-sheet modifications.
Direct Rubidium Extraction (DRE) technology, initially developed for lithium, is now being explored for rubidium recovery. Roasting with alkali salts, followed by leaching, is also a common method for extracting both elements from certain mineral types.
The specific processes and conditions for extracting lithium and rubidium more-or-less simultaneously may vary depending on the ore type and desired purity levels.





