What was developed or tested
High-precision chemical analysis identified elevated concentrations across sites including CSA, Great Cobar, Nymagee, Endeavour and Hillgrove; mineral deportment and recovery testing remain site-level next steps.
What the evidence supports
A strong Australian precompetitive dataset showing how systematic characterisation can identify secondary prospectivity without overstating commercial readiness.
Environmental and technical uncertainty
Elevated concentration is not recoverability. Any secondary-mining proposal must integrate acid-generating potential, contaminated-site obligations and rehabilitation of remaining material.
Benefit-case screening lens
Potential value: Recovered metal revenue, critical-mineral supply, improved resource efficiency and possible reduction of a legacy or active tailings inventory.
Deployment constraints: Representative grade, mineral deportment, recovery, throughput, reagents, energy, CAPEX, commodity price and management of the reprocessed residue.
Question before applying elsewhere
Do grade variability, mineral deportment, recovery, reagent demand and residual-waste management support a viable site-specific flowsheet?