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This is a wonderful resource for Illinois rock lovers! Visit the Illinois State Geological Survey to learn more about the many locations in Illinois to collect minerals and view mineral formations. Also to learn about the geological history of the state.

There are field trips to take and among the books to purchase is one called Guide to Rocks and Minerals of Illinois. This photo is from their book and was taken at Starved Rock.

Each state has a similar organization.

 


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