1. Bornite commonly occurs with other copper sulphide minerals such as chalcocite and weathers, or “oxidizes”, to malachite

2. Energy band structure calculation results suggest that the covellite, Bornite, chalcocite, and chalcopyrite are narrowband semiconductors, having metal characteristic

3. Chalcopyrite and Bornite are both typically replaced by chalcocite and covellite in the supergene enrichment zone of copper deposits.

4. Chalcopyrite and Bornite are both typically replaced by chalcocite and covellite in the supergene enrichment zone of copper deposits

5. C) Briartite-type phase (Bri) in close association with catamarcaite (Ct) lining a cavity in massive bornite (Bn) – chalcocite (Cc) ore; Sp is sphalerite (sample PR/C2)

6. The copper sulphides (chalcocite, bornite with accessory chalcopyrite and pyrite) and associated minerals (chlorites, sericite, albite, epidote, quartz) crystallized during the cooling of the ignimbrite and were included in pyromeride textures.

7. Fe-Cu sulfides in the veins were precipitated in two stages, early pyrite (PI) and chalcopyrite were altered to secondary chalcocite, bornite and digenite and a second generation of pyrite (PII and PIII).