The tests confirmed the high gold recoveries with very little impact from accessory sulphides or argillite host rock that is often present in the Dixie Limb zone.
Metallurgical testing at Dixie to date suggest similar gold recovery process can be used at both the Dixie Limb and Hinge zones, the Vancouver-based company told shareholders.
READ: Great Bear Resources reports Dixie gold project drill results including 10 grams per ton over 34.9 metres
Gold recoveries were very high for all four of the high accessory sulphide samples tested, showing similarities to Dixie’s Hinge zone low-sulphide samples. Gold mineralized argillite is present at the Dixie Limb zone but not in the other gold zones at Dixie, the company said. Six gold mineralized argillite samples were also tested using the same metallurgical processes applied to the Hinge zone and the high sulphide Dixie Limb zone samples, and gold recoveries in all conditions were very high, similar to non-argillite Hinge and Dixie Limb zone samples.
Great Bear CEO Chris Taylor told shareholders that metallurgical tests from the Dixie Limb zone recovered 88 to 97.5 % of head grade gold values from conventional cyanidation bottle roll leach tests.
“These results confirm gold mineralization at the Dixie Limb yields similar very high gold recoveries to those previously reported from the Hinge zone,” Taylor said in a statement. “Over the coming months we will periodically release gold recovery results from representative samples originating from all of our gold zones including the LP Fault."
Great Bear’s Dixie project hosts two principal styles of mineralization: high-grade gold in quartz veins and silica-sulphide replacement zones found in the Dixie Limb, Hinge and Arrow zones, and high-grade disseminated gold with broad moderate to lower grade envelopes in the LP Fault.
The company added it will begin gravity circuit gold recovery tests on samples from all gold zones in 2021.
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