Hi Jeff,
Welcome to the forum.
True, mining in the Mojave Desert has been going on for more than a thousand years, if one can trust the written word. Mining gems and a lot of other things.
Could your mill balls go for Indian wootz ingots, or should I ask, how much expert do you have to be, to see that they are not Indian ingots, remembering that most of us have only seen ingots on pictures?
Jens
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