Mining and Refining: Lead, Silver, and Zinc https://hackaday.com/2024/10/02/mining-and-refining-lead-silver-and-zinc/ #MiningandRefining #Engineering #OriginalArt #cupellation #Interest #sulfide #silver #froth #Idaho #lead #zinc
Hackaday · Mining And Refining: Lead, Silver, And ZincIf you are in need of a lesson on just how much things have changed in the last 60 years, an anecdote from my childhood might suffice. My grandfather was a junk man, augmenting the income from his …
