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Buffalo Co., Wisconsin, USA
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Buffalo County is underlain by undisturbed Cambrian and Ordovician sedimentary rocks. The Ordovician rocks are primarily the Prairie du Chien group, which is mostly resistant dolostone and is widely quarried. These rocks can yield drusy quartz, calcite and goethite pseudomorphs after pyrite and marcasite. The Cambrian rocks are dominantly quartz sandstones that are currently actively sought for "frac sand". The County was glaciated, but only by some of older Pleistocene glaciations, so glacial drift cover is sparse. Where glacial drift is found, or in deposits from rivers draining glaciated areas one may occasionally find nice "Lake Superior" agates, as well as drift copper, banded iron formation, jasper and many other rocks.

Mineral List

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

6 entries listed. 5 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.


Dott, Robert H. & J.W. Attig, (2004) Roadside Geology of Wisconsin, Mountain Press, 345 p.

External Links

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

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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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