Hoov,
Thanks for pasting that graph from Dundee comparing nickel-copper+PGE deposits. I understand you are taking a break for health reasons so please do not feel obliged to respond unless this will be a lift to your day.
I am curious about the selection of deposits on the graph from Dundee. Noticeably missing are Sudbury and Norilsk (unless I am overlooking them) which do have all of the minerals. Dumont appears to have low-grade nickel only (0.4%). Mt Keith is also low-grade and does not appear to have much copper. Thompson and Raglan are obvious choices for comparison.
Any thoughts to enlighten us here?
I am posting another graph of nickel-copper & pge deposits.