The ESCONI Mineral Study Group will meet on Saturday, November 1st, 2025 at 7:30 PM in TEC 1038B at College of DuPage in Glen Ellyn. See Directions and Map below.

The program will be on “Fluorite”. Southern Illinois was once a major producer of world-class fluorite specimens, primarily from Hardin County. While no commercial mining currently operates, you can still find fluorite through surface collecting or by searching areas where previous mines were located.  

Join us as we talk about all things fluorite, look at pictures of beautiful examples and examine many impressive specimens in person. If you have your own examples of fluorite, please bring them in to show off!

See you there! If you have any questions contact Dave at fossil54@att.net

Directions: College of DuPage Technical Education Center (TEC) Building – Room 1038B (Map) Park in the Fawell D Parking Lot off of Lambert Road. Enter at Tallgrass Road. Park in the South-west corner of the lot. Cross Lambert Road at the light and proceed up the steps into the building. Once in the building, immediately turn right, Room 1038B will be on the right. The door will be open.You can also park behind the building (see the map), but you will have to use the stairs or elevator, go up one level, and navigate to the front of the building.