Porphyry deposits are very large, polymetallic systems that typically contain copper along with other important metals. Much of today’s mineral production depends on porphyries: 60% of copper, 95% of molbdenum, and 20% of gold comes from this deposit type.

Copper Porphyries: Everything You Need to Know

Copper Porphyries infographic

Infographic source: Visual Capitalist