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Racine Co., Wisconsin, USA
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Racine County is underlain by Silurian sedimentary rocks, primarily dolostones. Quarries can yield some well-crystallized specimens, such as the find of smoky calcite, marcasite and other minerals at the Vulcan Materials Corporation Quarry near Racine. Exposures of this rock can yield interesting Silurian fossils from reefs and associated environments. Thick glacial sediments obscure the bedrock in most places. Beach combing along Lake Michigan's shore can provide interesting samples of local and glacially transported rocks.

Mineral List

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

11 entries listed. 9 valid minerals.

Localities in this Region


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Cook, C. (1924) Marcasite from the Racine dolomite, Racine, Wisconsin: American Mineralogist: 9: 151-152.

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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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