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Great Boulder Slashes Cyanide Use, Keeps Gold Recovery Near 96% at Mulga Bill
3:06am on Monday 2nd of June, 2025 AEST
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Mining
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Great Boulder Slashes Cyanide Use, Keeps Gold Recovery Near 96% at Mulga Bill
3:06am on Monday 2nd of June, 2025 AEST
Key Points
Gold recoveries between 92% and 96% achieved at Mulga Bill with cyanide at 150ppm
Coarse grind sizes (75µm to 150µm) maintain consistently high gold recovery
Reduced cyanide consumption could lower processing and capital costs
Ironbark scoping study on track for completion this quarter
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