RE:Twitter Pictures from Oroco Great FOTOS and CORE VIDEO! Thanks for the link.
Note: I did not see your post until AFTER I had submitted earlier today a "long response" --- see below --- to a different post ... having to do, somewhat, with some related subject matter.
Nonetheless, this NEW CORE VIDEO does reinforce my earlier post and reminds me that I need to introduce an additional notion:
[1] reinforcement of previous post: OBSERVER BEWARE.
There is a "TON" of mineralization in this new core video, mostly in the form of PHENOCRYSTS --- that is, macro-sized crystals --- which formed and jam-packed, within the respective fracture system, most likely through some episoded of hydrothermal alteration. [Note: I'm pretty sure that I can see at least three distinct fracture systems --- which most likely occurred MILLIONS of years apart --- which suggests that most likely there are at least a few more of such sytems; all of which together, in such a tectonic regime, is not unusual and are generally beneficial to the deposition of mineralization].
HOWEVER, although these jam-packed fractures are filled with "shiny" metallic mineras I am willing to bet, they are almost entirely FOOLS GOD; that is, Iron Pyrite.
My VERY ROUGH estimate is that these Iron Pyrite fractures comprise at least 25% of the total core interval. That, by itself, suggests that it is not the commercially desirable Cu-sulfides ... BUT, most likely, with so many different fracturing episodes, the chances are greater that at least one of these episodes was condusive to the deposition of such desirable sulfides.
Note: I wonder whether this particular OCO core was simply a random core section or whether it has particular characteristic that OCO wanted to show? [Just curious.]
[2] new geological notion [ that is, new in the sense that I had not previousl mentioned here in my comments]: most likely aside from the larger visible crystals, there is also very fine grained disseminated crystallization --- visible not to the naked eye --- and I am confident such things are also being evaluated by the OCO team and the assay company. I can't say much more about this ... simply because it is a much more complicated topic; way beyond my range of such knowledge.
Again, thanks for the link!