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Monongahela (Old) Mine, Monongahela Mine, Crystal Falls, Menominee iron range, Iron Co., Michigan, USA

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Commodities (Major) - Iron
Deposit Type: Secondary Enrichment
Development Status: Past Producer
Deposit Model: 241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
Host Rock: Iron Formation

A small, early mine on the Monongahela property, started in 1892 with small shipments in 1901 and 1903.

Mineral List



1 entry listed. 1 valid mineral.

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.

References

Bernhardt M. (2001) (editor) "Men, Mines, and Memories", Iron County Museum, Caspian, Michigan.

Pettijohn, F. J. (1972) "Geology and Magnetic Data for Southern Crystal Falls Area, Michigan", Geological Survey Division of the Department of Natural Resources, State of Michigan, Lansing.

JOHNSON, A.M. AND GROTH, E.H., 1998, INVENTORY OF UNDERGROUND MINES, IRON COUNTY, SITE ID 360085, MICHIGAN DEPARTMENT OF NATURAL RESOURCES,

Mineral and/or Locality  
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