Sorry, I will clutter your mind with the information that refractory ore is something that needs complex processing to extract the gold, free milling ore can just be crushed and processed with cyanide, and the gold can then be recovered by gravity or captured from the cyanide solution. The MDI plant is set up for the latter. The resources at places like Gidgee and Youanmi are a mixture of free milling refractory.
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