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Lumifer comments on The Octopus, the Dolphin and Us: a Great Filter tale - Less Wrong
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Actually, to make copper tools all you need is copper nuggets (which aren't all that rare) and a couple of rocks.
Humans made tools out of meteorite iron before they developed metallurgy.
Heh, yeah. But when you don't have transportation and it's just 10 people it may be difficult to find such things without a metal detector... I was just recalling one time I made a little bit of copper from low grade malachite, using a torch. It is really easily reduced from the ore. More easily than iron.