| http://www.w3.org/ns/prov#value | - Everyone involved in Minnesota???s copper mining controversy agrees there???s an incredibly rich deposit of nickel, platinum, palladium, copper and other high-demand minerals under this rugged land. ???The Duluth Complex is perhaps the world???s largest untapped resource of (copper, nickel and platinum group metals) with multibillion tons of geologic resources estimated to be worth more than $1 tr
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