Comprehensive Metallurgical testing will hopefully rule out any...

Comprehensive Metallurgical testing will hopefully rule out any issues with recoveries and complication with copper content.  

Thundelarra/Menzies were the last to do any test work in 2012.   Two samples analysed with recoveries ranging from 96.8% - 97.9% and low to moderate reagent consumption.   At the time Menzies & Thundelarra were planning to mix ore from Rothsay with ore from Deflector, which had/has significant copper present.   And early 1900's mining was stopped due to copper being present and complicating extraction (technology was a lot simpler back then).  

If recoveries on this more comprehensive test work come out around 95%+, it's happy days.   The deeper ore at Rothsay seems to be quite different to Deflector with low copper content.