Tesoro Resources Limited (ASX: TSO) has obtained positive final results from the Phase 2 metallurgical test work conducted on mineralised material from the Ternera Gold Deposit at the company’s El Zorro Gold Project, Chile.
Detailed metallurgical test work results indicate achievable gravity recovery of 45% and overall recovery of 94.5% at a 150 μm grind size and up to 98% at finer grind sizes.
The Phase 2 test work programme was designed to assess the gravity recovered gold component and cyanide leaching characteristics over a range of gold grades using different grind sizes to allow the selection of the most appropriate grind size for future processing. The Phase 2 test work was completed using sea water.
The Phase 2 test work was conducted on representative samples from the various mineralised zones at Tenera over a range of grades. A total of 526kg of samples selected from the various mineralised zones that lie within the optimisation pit shell that was used to constrain the Tenera Mineral Resource Estimate as released on 29 July 2021. Samples were sent to the ALS Metallurgical Laboratory in Perth WA for test work.
Managing Director, Zeff Reeves, said the test programme successfully determined a simple processing method for recovering gold from the Ternera gold deposit with the optimal results.
“These are first class metallurgical results confirming high gravity and cyanide leach recoveries that can be achieved for processing material from Ternera using conventional gravity and CIL processes at coarse grind sizes,” Mr Reeves said.
“These results have enabled the development of a very simple, generic, preliminary processing flowsheet and largely de-risks one of the projects key revenue drivers as it advances toward development.”
For further information please visit: https://www.tesororesources.com.au/
