ChalcociteI have been asked if Chalcocite can be primary/hypogene. Chalcocite is a low/very low temperature mineral. The high temperature version is Covellite. Supergene Chalcocite is black soot. Hydrothermal Chalcocite is grey and commonly cyrstallized. Hypogene Chalcocite from deep in the earth is unheard of (the earth is hot). Primary Chalcocite is always hydrothermal Chalcocite/remobilized copper.
That abundant, grey Chalcocite from the Belmont zone doesn't look supergene to me, it looks hydrothermal. We will know more when the plunk a hole down.
If they pull 20 m of 20% Copper from the Chalcocite zone that will be fine with me.