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[APD] fired clays - "Flourite"
Only half joking, cut a geologists beer ration short and we get really
I'd hate to hazard a guess about the exact source of "Fluorite", never
having been in the area and not finding much on the net. That said, ;-)
it sure look a lot like the fired clays adjacent to burned out coal beds in
Wyoming, Montana and the Dakotas. They range from relatively soft typically
soft orange red - red to really hard blue - black and glassy. If it is
natural it has to be some sort of cooked clay or shale.
Yeah, one has to laugh at the confusion once in a while, but being careless
with terms even when we know the difference can really confuse the
beginners. If Fluorite is just clay, why not just dig up some clay from the
nearest road cut and dump it into a tank for a substrate. There is a big
difference between greenware and the fired end product.
Just to be obstinate, there is a good possibility fluorite was actually
shale in a previous life, after it's earlier life as a clay, before that who
knows ... If it is natural it has to be some sort of cooked clay or shale
Regardless, I have it on good authority (Dr. Robert Houston, former chairman
UW Wyo. Dept geology) that its just dirt, he used to claim anything younger
than the Pre-Cambrian, was just dirt covering up the interesting stuff. ;-)
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