Newcore Gold (TSXV: NCAU | OTCQX: NCAUF) has announced positive results from seven additional column tests completed as part of the metallurgical test work programme underway at the company’s 100%-owned Enchi Gold Project, in Ghana.
An average gold recovery of 93.0% was achieved from column test work completed on five composite samples from the Sewum Gold Deposit and two composite samples from the Boin Gold Deposit.
Greg Smith, VP Exploration of Newcore stated, “These additional column tests, completed on representative oxide material from the two largest deposits on the Enchi Gold Project, returned results that are consistent with prior test work and continue to confirm generally modest reagent consumption.”
In addition to metallurgical test work, further exploration and development work is on-going at Enchi to continue to de-risk the development of the Project and prove-out the district scale exploration potential. This work includes a 10,000m reverse circulation drill programme focused on resource growth and infill drilling designed to improve the confidence level of the existing MRE, drone surveys, hydrogeological testing, condemnation drilling, geotechnical work, environmental work, an airborne magnetic survey, trenching, and soil sampling.
Highlights from Column Test Results
Seven column tests completed, average gold recovery of 93.0% achieved
- A total of seven column tests (five from Sewum and two from Boin) returned an average gold recovery of 93.0%, with a recovery range of 82.6% to 97.2%
Test work further defines the understanding of recovery parameters for Enchi
- Testing completed on representative samples of oxide mineralization from trenches taken from various areas of the Boin and Sewum deposits, including areas not previously included in column test work
- Samples had an overall average assayed grade of 0.56g/t gold, with a range of 0.32g/t Au to 0.84g/t Au
Test work continues to highlight low reagent consumption
- All samples showed modest cyanide consumption with an average of 1.63kg/t with a 0.98kg/t lime (hydrated) addition to maintain a pH above 10.5
Additional metallurgical test work underway
- Optimization work is planned on both oxide and transition mineralization from the Sewum, Boin, and Nyam gold deposits consisting of further tests on gold recoveries, percolation rates, and reagent consumptions
- Additional testing of sulphide mineralization is in progress consisting of bottle rolls and column tests, as well as additional test work of rock properties such as bond work indices
“The test work resulted in high recoveries for all seven composite samples, with the results continuing to highlight the amenability of Enchi to heap leach gold recovery and supporting the oxide recovery assumptions used in the 2024 PEA study. Additional metallurgical test work on oxide, transitional and sulphide mineralization is underway as we continue to de-risk and advance the development of the Enchi Gold Project.” Added Greg.
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