First #Copper-#Nickel mine in #Minnesota inches forward
Polymet Mining announced it has applied for a permit to mine #Copper, Nickel and precious metals at a site in northern #Minnesota known as The Duluth Complex – a rich vein of minerals stretching from about 150 miles north of Duluth to the #Canadian border.
Read more at: http://www.mining.com/first-copper-nickel-mine-minnesota-inches-forward/
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