Resources

Books

• Skinner, Brian J., 1989, Mineral Resources of North America, vol. A, The Geological Society of America: Denver, CO.

State-based Resources

• USGS Minerals Yearbook, Volume II – Area Reports: Domestic, State and Territory chapters (State-by-state information about mineral mining and production.)
• Minerals of Wisconsin, Wisconsin Geological and Natural History Survey

Economic Minerals Prominent in the Midwest

• Fluorite: The Illinois State Mineral, Illinois Department of Natural Resources
• Gypsum the Commodity, Indian Geological Survey
• Rock Salt Mining, Michigan State University
• Salt Mining, How Stuff Works
• Iron mining