Newcore Gold Ltd. (TSXV: NCAU | OTCQX: NCAUF) has received positive results from two bulk-scale pilot heap tests completed as part of the ongoing metallurgical programme at the Enchi Gold Project, Ghana.
Two bulk-scale pilot heap tests, leached for 60-days, were completed on 15-tonne composite samples of oxide mineralization from the Sewum and the Boin Gold Deposits.
An average gold recovery of 91.9% was achieved from both samples, with Sewum achieving an average gold recovery of 93.5%, and Boin achieving an average gold recovery of 90.3%. These strong metallurgical results on oxide material from Enchi continue to highlight the project’s amenability to heap leach processing.
Greg Smith, VP exploration of Newcore, commented, “These bulk-scale pilot heap tests completed on representative oxide material from the Enchi Gold Project returned high recoveries, in-line with results from metallurgical testing completed to date, further supporting the amenability of Enchi to heap leach processing. The larger, 15-tonne samples are a significant step in confirming the positive results from the extensive lab testing completed to date. These results, along with the additional positive test results completed and reported since 2021, will be incorporated into our updated preliminary economic assessment study which is targeted for completion in H1 2024.”
Highlights from the pilot heap leach test results:
- Average gold recovery of 91.9% achieved from testwork on oxide mineralization
- Sewum sample achieved an average gold recovery of 93.5% with a head assay grade of 0.81g/t Au
- Boin sample achieved an average gold recovery of 90.3% with a head assay grade of 1.09g/t Au
- Representative samples were collected at Sewum and Boin from two trenches on the central portions of each deposit, completed specifically for metallurgical testwork
- The Sewum and Boin Gold Deposits at Enchi comprise approximately 76% of the mineral resource estimate defined to date at Enchi
- Results continue to show low consumption values for reagents: cement, cyanide, lime
- Results in-line with column testwork completed to date, highlight +90% gold recoveries with oxide and transition material amenable to heap leach processing
The company continues optimization work with additional column tests to be completed on oxide mineralization from the Sewum, Boin, Nyam, and Tokosea gold deposits. Additional testing of sulphide mineralization from Sewum is in progress.
To find out more, please visit www.newcoregold.com
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