The metal gallium disrupts the functioning of key iron-dependent enzymes in bacteria, effectively treats lethal animal infections and shows preliminary indications of efficacy in humans with chronic airway infections.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6637966/
Gallium is the biggest reason we need smelting to come back home.
Also, if some volcanoes act as natural smelters, there are (or were) big deposits of gallium down there somewhere.
Yep, anon read that, but anon does not believe everything anon reads.
Gold, silver, zinc are all found in streaks indicating thermal processes separated them. It would only stand to reason that nature did it if we can do it.