Cranbrook Institute of Science Museum
http://science.cranbrook.edu/Mineral Study Gallery
Cranbrook founder George Booth started this mineral collection in 1926 with only a few hundred specimens. Since then, it has grown to more than 11,000 specimens, including 300 minerals from Michigan, such as gypsum, copper and halite (that’s table salt!). Right now, there are approximately 1,800 specimens on view in the Mineral Study Gallery.
https://science.cranbrook.edu/explore/exhibitsWoodward Avenue 39221, Bloomfield Hills, Michigan, USA
Also see:
https://www.mindat.org/museum-143.html