How can Nimbus not be economic, especially if they high grade it.
The Project hosts a high-grade silver zinc Resource of 256kt @ 773g/t Ag and 13% Zn that has been estimated from the global Nimbus Resource of 12.1Mt @ 52g/t Ag, 0.9% Zn and 0.2g/t Au for a total of 20Moz Ag and 104kt Zn and 78koz Au (JORC 2012).
Per tonne silver=773/31.1*20.4 = 507
Per tonne Zinc
=2200*.13 = 286
= 793USD/ t
90% recovery = 713USD/t
In AUD $1010/t
Gold equilivant 1010/(2587/31.1) = 12.14 g/t gold?? recovered.
Ann: Quarterly Activities Report 30 June 2020, page-15
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