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Mohawk Mine, Mohawk, Keweenaw Co., Michigan, USA

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Latitude & Longitude (WGS84): 47° 18' 29'' North , 88° 21' 20'' West
Latitude & Longitude (decimal): 47.30806,-88.35556
Other regions containing this locality:Keweenaw Peninsula, Michigan, USA
Köppen climate type:Dfb : Warm-summer humid continental climate


A copper mine located at Mohawk (headframe hamlet), approximately 6 miles north of Calumet on the east side of Route 41.

The Mohawk Mining Co. was incorporated in 1898 with Joseph Gay as president, after lumberman Ernest Koch found copper on the property in 1896. It is best known to collectors for the occurrence of mohawkite (a mixture of algodonite, domeykite, and copper). The mine also produced a large amount of native silver, especially in the upper levels. In 1923 the Mohawk Mining Co. took over the Wolverine Copper Mining Co. and the Michigan Copper Mining Co.




Mineral List

Mineral list contains entries from the region specified including sub-localities

42 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Stenian
1000 - 1200 Ma



ID: 2928161
Portage Lake Volcanics

Age: Stenian (1000 - 1200 Ma)

Stratigraphic Name: Portage Lake Volcanics

Description: Lava flows, mostly basalt, andesite and felsite flows and subordinate interflow sedimentary rocks.

Comments: This unit is the same as unit Yp on paper map of Sims (1992). Description is taken from that unit description.

Lithology: Major:{basalt}, Minor:{basaltic andesite}, Incidental:{rhyolite, sandstone mudstone}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


Localities in this Region

USA

This page 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

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
The Mines Handbook, 1926.
Moore, Paul B., Copper-Nickel Arsenides of the Mohawk No. 2 Mine, Mohawk, Keweenaw County, Michigan; The Department of the Geophysical Sciences, University of Chicago, Chicago, Illinois 60637.
Rocks & Minerals (1946): 21: 664.
American Mineralogist (1971): 56: 1319-1331.
Mineralogical Record: 23(2).
Rocks & Minerals (1983): 58: 111.

External Links


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