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Fond du Lac Co., Wisconsin, USA

Copper
Fond du Lac Co., Wisconsin, USA

Photo: 2006 Peter Cristofono
Fond du Lac County is underlain by Ordovician to Silurian sedimentary rocks, which are found in scattered outcrops. The carbonate rocks are often quarried when found, and can provide calcite, quartz, marcasite, pyrite and other minerals in small crystals. Most of the County is covered by thick deposits of glacial drift. These can, from time to time, yield interesting minerals such as "drift" copper nuggets. They also show excellent continental glacial landforms, such as seen along the Ice Age National Scenic trials and Kettle Moraine State forest. The Henry S. Ruess Ice Age Interpretative Center has excellent displays and programs on this phase of Wisconsin's history.

Mineral List

Mineral list contains entries from the region specified including sub-localities
Gypsum
Pyrite
Quartz
Sphalerite


4 entries listed. 4 valid minerals.

Localities in this Region

USA
USA

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References

Newport, T.G. (1962) Geology and ground-water resources of Fond du Lac County, Wisconsin: U.S. Geological Survey Water-Supply Paper 1604, 52 p.

Dott, R. & J. Attig (2004) Roadside Geology of Wisconsin: Mountain Press, 346 p.

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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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