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Metallurgy

Rebecca test work:

➢ Not refractory, Au associated
with pyrrhotite and in coarse
native form

➢ Aberfoyle 1997: 94%

➢ Apollo 2018: average 94%

➢ Apollo 2019: average 93%

➢ Oxygen sparge steepens
recovery curves

➢ Detailed work in progress to
determine:

1. Gravity recovery

2. Comminution/grind size

3. Optimise oxygen levels, leach
time, lime & cyanide

requirements

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