Ann: Sulphides Drilled at Dibete Cu-Ag Project Botswana, page-7

So as the company says the AMT anomalies are associated with copper sulphides.
Rock chips identifying in one hole as Chalcopyrite and the other Chalcocite.
So this means the anomalys at depth have the possibility of containing both of these copper minerals.
Previous drilling by SI6 encountered 50%+ copper veins, so the potential is even more real now for a major discovery.
Remember Chalcocite was also a dominant mineral found by Sandfire Resources at its Degrussa Mine.
One decent drill hole into a high grade Copper deposit by SI6 and the rest will be history.