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iron ore operation with mineral

Manganeserich iron ore 56148 Mn was mined in the Cuyuna Range contrasting with the low Mncontent of ore in the rest of the district mostly 1 Mn Marsden 1968 Other publications include those of Goodwin 1956 on the petrography of the Gunflint BIF Morey and Southwick 1993 on manganese in the Cuyuna Range Morey and Southwick