As part of the celebration of ESCONI’s 70th Anniversary, here is Flashback Friday post #43.  If you have pictures or stories to contribute, please send them over to esconi.info@gmail.com.  Thanks!

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Here are some pictures of a field trip to a fluorite mine in Rosiclare, IL in Hardin County.  There is the American Fluorite Museum in Rosiclare.  They have the Fluorspar Festival every year in October.  Wow, who knew?!?