Leah,
I did not know anything about the copper mining process either. I cannot believe how much copper Chile has, almost a quarter of the whole world's reserves in just one country! That is crazy. Where is the rest of the Copper located? I never knew how complex the process of getting copper and refining it was, your blog was very helpful. Did they use all of these complicated techniques when Chile first started mining copper? or has the process completely changed since then? Does the United States still purchase most of it's copper from Chile? I wonder if the copper from my pennies came from Chile.
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