But his most valuable scrap was lead ... metals including zinc and copper. But the real prize was silver, present in such abundance that the most productive silver mine in the world was once ...

Zinc’s premium to lead stretched to over $1,000 per ton during the fourth quarter of 2024, the widest gap since February 2023. Although the two metals mostly come from the same mines ...

Deep-sea mining may irreparably harm ocean ecosystems before we even have a chance to fully study its impacts. That's one reason the Center has taken a lead role against deep ... manganese, zinc, gold ...