Positive Metallurgical Tests Results At Mercur Gold Project
TORONTO - Revival Gold Inc. reported positive results from the Company’s column leach metallurgical test program on representative samples from the Mercur Gold Project in Utah. Five composite samples were developed from seven HQ core holes for testing. The composites were developed to be geologically and grade representative of the primary gold-bearing heap leachable host rocks at Mercur. The composites were crushed to 100% passing 12.5 mm (0.5 inch) and actively leached for seven weeks.
Results: 1) Overall extraction rates for gold for the five column leach tests were 85%, 85%, 74%, 92%, and 82%. Table 1 describes the composites tested and compares the column leach test results against the applicable bottle roll test results. 2) Average sodium cyanide consumption for the column leach tests was 0.57 kg/T (1.14 lbs/t) and lime addition was 1.0 kg/T (2 lbs/t). 3) The column leach kinetics were rapid on all composites with 90% of the gold leached reporting to solution after only five days.
Together with historical operational and exploration data, these results demonstrate that Mercur host rocks are amenable to cyanide leaching for the recovery of gold. The results will be used to support heap leach recovery rate assumptions to be used in a Preliminary Economic Assessment (PEA) for Mercur.