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Akjoujt, Mauritania

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Bill_I_Am

Copper sulfate forms the beautiful blue/aqua colors often associated with copper.

https://en.wikipedia.org/wiki/Copper%28II%29_sulfate
http://www.instructables.com/id/Blue-Patina-on-Copper/
http://www.thenakedscientists.com/HTML/questions/question/2031/

patw

Yes, I'd looked this place up and saw that, but couldn't make a connection to the mining. But I don't know anything about mining, so there is that. :-)

Bill_I_Am

I think it's probably from copper mining activities. https://en.wikipedia.org/wiki/Akjoujt

patw

Why does it look blue? It sure as heck isn't sitting on any inland ocean.

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