I got these really great iron pyrite crystals (fools' gold) from my son-in-law, D. They are from the Rio Tinto Kennecott mine in Bingham Canyon, Utah. I have seen other samples from the same mine, but these were really pretty. The smallest one looks almost perfect.
Of course, iron pyrite is worthless as a source of industrial materials. The iron is too hard to separate from the sulfur to be economically viable. Rio Tinto already produces about 1 million tons of sulfuric acid as a by product of the copper smelting process, according to their literature.
The post-1982 penny is almost worthless, also. That is what I am calling fools' copper; a zinc slug covered in copper. Whereas before 1982, the penny used to be mostly copper. I have blogged about the penny here.
Of course, iron pyrite is worthless as a source of industrial materials. The iron is too hard to separate from the sulfur to be economically viable. Rio Tinto already produces about 1 million tons of sulfuric acid as a by product of the copper smelting process, according to their literature.
The post-1982 penny is almost worthless, also. That is what I am calling fools' copper; a zinc slug covered in copper. Whereas before 1982, the penny used to be mostly copper. I have blogged about the penny here.
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