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Shawano Co., Wisconsin, USA

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The oldest rocks in Shawano County are those of the Proterozoic (about 1.4 billion year old) Wolf River Batholith, which occupies most of the county. This poorly exposed but complex granitic pluton also hosts an anorthosite mass, as well as several complex pegmatites. To the east are exposed Cambrian and Ordovician strata dipping east gently off the Wisconsin arch. The carbonate Ordovician rocks are quarried. Thick glacial debris, forest and lakes obscure outcrop in much of the County. Glacial drift can yield interesting float material including native copper masses,nbanded iron formation, jasper and "Lake Superior" agates.

Mineral List

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


19 entries listed. 10 valid minerals.

Localities in this Region


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

Falster, A. (1986) Beryl from the Wolf River Batholith, Wisconsin: Mineral News: 2 (4): 4

Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399

External Links

Wisconsin Mineral index - Wisconsin Geological and Natural History Survey http://wgnhs.uwex.edu/wisconsin-geology/minerals-wisconsin/

Mineral and/or Locality  
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