Twin City Brick Company Clay Pit, Dakota Co., Minnesota, USA
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Development Status: Producer
Host Rock Unit: Red And Gray Drift, Windrow Formation, Ferruginous And Clastic Members, Decorah Shale, Laminated Red And Gray Clay
Host Rock: Clay, Mud
Mineral List
1 entry listed. 1 valid mineral.
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
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References
Grout, F. and E.K. Soper (1914) Preliminary Report on the Clays and Shales of Minnesota: Minnesota Geological Survey Bulletin 11, 206 p.
Grout, F. (1919) Clays and shales of Minnesota: U.S. Geological Survey Bulletin 678.
Grout, F. (1919) Clays and shales of Minnesota: U.S. Geological Survey Bulletin 678.