Sierra Nevada Gold (ASX: SNX) has discovered a polymetallic breccia system at the As Safra copper-gold project in Saudi Arabia following the intersection of high-grade precious and base metals mineralisation in two reverse circulation holes. Phase 2 InvestigationThe results confirm multiple mineralising events at As Safra, and support the interpretation of a large magmatic-hydrothermal system extending beyond the known copper-gold skarn mineralisation. “It materially advances our understanding of the As Safra mineral system,” he said. “We now have evidence that the system evolved through multiple mineralising stages and was capable of producing copper-gold skarn mineralisation, skarn Au-dominant zones, and precious-metal-rich polymetallic breccias.” “This level of geological complexity is commonly associated with large mineral districts and with only a small proportion of the known mineralised corridor tested, it opens an important new area for follow-up exploration.”