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Hemlock Mine, Amasa, Menominee iron range, Iron Co., Michigan, USA

Latitude: 46°14'11"N
Longitude: 88°26'50"W
Commodities (Major) - Iron
Deposit Type: Banded Iron-Rich Sedimentary Deposits
Development Status: Past Producer
Deposit Model: 241: Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)
Host Rock Unit: Amasa Iron Formation
Host Rock: Iron Formation

An iron mine operated by Hemlock River Mining Co during 1891 through 1919, shipping 2.1 million tons of ore. Workings reached 500 feet depth. The mine exploited the middle-Precambrian Amasa Iron Formation of the Baraga Group. The property description is W1/2-SW Sec. 4 T44N-R33W, which is 80 acres between N46º13'55", N46º14'21", W88º26'42", and W88º27'1".

Mineral List

Goethite
Hematite
Magnetite
Quartz


4 entries listed. 4 valid minerals.

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References

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

LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, LAKE SUPERIOR IRON ORES, 2D ED.: CLEVELAND, OHIO, LAKE SUPERIOR IRON ORE ASSOCIATION, 334 P.

BAYLEY, R.W., AND OTHERS, 1966, GEOLOGY OF THE MENOMINEE IRON-BEARING DISTRICT, MICHIGAN AND WISCONSIN.

LAKE SUPERIOR IRON ORES, MINING DIRECTORY AND STATISTICAL REPORT, PUBLISHED BY THE LAKE SUPERIOR IRON ORE ASSOCIATION, 1952.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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