Great Boulder Resources (ASX:GBR) said the second round of metallurgical test work on Mulga Bill deposit samples from its Side Well gold project in Western Australia has demonstrated high gold recoveries at lower cyanide concentrations, according to a Wednesday Australian bourse filing.
Total gold recoveries from the test work ranged from 92% to 96% with cyanide maintained at 150 parts-per-million.
It is continuing to progress the Mulga Bill deposit towards engineering studies while it grows the Eaglehawk deposit, and it is also continuing discovery drilling at Side Well South.