Drill hole RI303a, Round Lake Exploration, Menominee iron range, Iron Co., Michigan, USA
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The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
James, H. L., Pettijohn, F. J., Clark, L. D. (1970) "Geology and Magnetic Data Between Iron River and Crystal Falls, Michigan", Geological Survey Division of the Department of Natural Resources, State of Michigan, Lansing, pl. 1, p. 9.