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Aton Reports up to 97.9% Gold Recovery From Initial Scoping Level Metallurgical Testwork at the Semna Prospect
VANCOUVER, BC / ACCESSWIRE / January 4, 2024 / Aton Resources Inc. (TSXV:AAN) ("Aton" or the "Co...
About this update from Aton Resources Inc.
[{"type":"text","content":"Aton Reports up to 97.9% Gold Recovery From Initial Scoping Level Metallurgical Testwork at the Semna ProspectVANCOUVER, BC / ACCESSWIRE / January 4, 2024 / Aton Resources Inc. (TSXV:AAN) (\"Aton\" or the \"Company\") is pleased to update investors on the results of initial scoping level metallurgical testwork from its recent Semna drill discovery. Semna is located within the Company's 100% owned Abu Marawat Concession (\"Abu Marawat\" or the \"Concession\"), in the Eastern Desert of Egypt, see Figure 1.Highlights:2 composite metallurgical samples (SMMET-01 and SMMET-02), representative of mineralisation from the Main Vein zone at Semna, underwent scoping testwork. The 2 samples were selected and composited by Aton geologists from reverse circulation percussion (\"RC\") drill hole samples, and dispatched to Wardell Armstrong International Ltd (\"WAI\") in the UK for testing;The 2 composite samples were subjected to whole ore cyanide leach tests at a grind size of 80% passing 75µm. The leach test results showed final gold recoveries of 97.4% (SMMET-01) and 97.9% (SMMET-02), after 48 hours of leaching. Silver recoveries were 85.2% (SMMET-01) and 87.9% (SMMET-02);The 2 composite samples were also subjected to two-stage bulk gravity separation tests at grind sizes of 80% passing 212µm and 75µm. Gold and silver recoveries to the gravity concentrates were 56.4% and 38.0% respectively from sample SMMET-01, and 62.2% and 39.0% respectively from SMMET-02;Intensive cyanide leaching of the SMMET-01 gravity concentrate achieved gold and silver recoveries of 98.3% and 96.5% respectively, after 48 hours. Leaching of the SMMET-02 gravity concentrate achieved gold and silver recoveries of 98.6% and 97.3% respectively, after 48 hours;Separate cyanide leaching of the gravity tailings achieved gold and silver recoveries of 93.0% and 78.1% from the SMMET-01 sample after 48 hours, whilst gold and silver recoveries from the SMMET-02 sample were 93.6% and 87.5% after 48 hours;The combined gravity concentration + leach test results showed final gold recoveries of 96.0% (SMMET-01) and 96.7% (SMMET-02), after 48 hours of leaching. Silver recoveries were 85.1% (SMMET-01) and 91.3% (SMMET-02);Initial scoping tests indicates that the Semna Main Vein zone mineralisation is amenable to treatment by both conventional CIL, and gravity concentrati...