https://www.ausimmbulletin.com/feature/ore-processing-operations-at-newmont-boddington-gold/
https://www.911metallurgist.com/blog/gold-metallurgy-cyanicides-leaching
http://file.scirp.org/pdf/ACES_2013042914382128.pdf
http://www.mdpi.com/2075-163X/2/4/459
also:
http://gekkos.com/sites/default/fil...singTheInLineLeachReactorAndWeakBaseResin.pdf
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I agree - bornite will consume the cyanide.
As for"Many/most gold mines aren't associated with copper", please google "gold deposits and copper".
DYOR. I am off this thread now.