Not to piss on anyone's parade but looks a heck of a lot like...

Not to piss on anyone's parade but looks a heck of a lot like mostly just pyrrhotite.
I'm a little unsure of what this means though to be honest.   

A simple google search tells us that Pyrrhotite is present as a mineralizing source
(i) Pyrrhotite, e.g., in Thompson, Manitoba.
(ii) Pyrrhotite and chalcopyrite, e.g., in Sudbury, Ontario, and in Norilsk, Russia.
(iii) Pyrrhotite, pyrite, and chalcopyrite, e.g., in Lynn Lake, Manitoba.
The first two concentrates represent the major tonnage treated. It should be noted that nickel is not only present in the mineral pentlandite, but also in solid solution with the pyrrhotite.

But I'm guessing the issue is Nickel is not in pyrrhotite in any significant quantities unless you have say a lot of chalcopyrite or pentlandite. This core doesn't.

Just show us the xrf, or at least promise to. Otherwise its just pretty pictures albeit the geophysics is working