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In response to
"It's apparently 60 miles from where I grew up, but even locally, it's pretty obscure. "
by
David
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it's really just quartz that has nothing in it but SiO2, which is surprisingly rare. we were looking at parts per billion impurity for some elements.
Posted by
mafic
Oct 1 '24, 00:01
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you can process and remove some impurities, but you want to start with something that's probably minimum 98% pure. for some of the real high end stuff they purify it to 99.9999% SiO2 (which they call 6N, because 6 nines).
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