and it starts with copper, the mineral copper. there's copper in brass. there's copper in bronze. the statue of liberty is sheathed in a layer of copper. that's about the thickness of two pennies. pennies themselves used to be copper, but now they're just copper-covered zinc, which sort of seems sad. it makes financial sense, because copper over time became too valuable to use in something as cheap as a penny, because most of what we use copper for now is conducting electricity. we use copper for wiring. there is a massive global appetite for copper. and the world's largest producer of copper is an american company. it's a company that used to be based in new orleans but now the mining company freeport is based in phoenix, arizona. and the freeport mining company of phoenix, arizona, they do still mine copper in arizona and
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