Metallurgical testing on samples from the Aurora gold project in Guyana has returned positive results for Guyana Goldfields (GUY-T).
Consulting firm SGS Lakefield performed leach tests on six samples, ranging in gold grade from 2 to 21.75 grams per tonne. They represented different lithological types from three prospects, Rory’s Knoll, Aleck Hill, and Madd Kiss.
The lowest recovery, 92%, was in primary vein-type mineralization from Aleck Hill; the highest, 98%, was in saprolite from the same prospect. Apart from the high recovery rates, the samples showed normal rates of cyanide and lime consumption.
The gold was mainly leached within 6 hours of the start of the tests, indicating that the gold is free-milling.
Guyana Goldfields has been drilling gold mineralization at the property, on the Cuyuni River about 180 km west of Georgetown, intersecting significant mineralized widths — some between 30 and 200 metres in core length — though it has not estimated a resource yet.
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