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Magnetite from
O'Brien Reserve Bu-14 Prospect (Butler Brothers; Hanna Mining Company Agt), Mesabi Range, Itasca Co., Minnesota, USA

Description
Quality of samples:	not specified / average specimens
Confirmation
Validity:	Believed Valid
References
References:	U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Data
Mineral Data:	Click here to view Magnetite data
Locality Data:	Click here to view O'Brien Reserve Bu-14 Prospect (Butler Brothers; Hanna Mining Company Agt), Mesabi Range, Itasca Co., Minnesota, USA

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