June 6 "Stone Hunt."  This hands-on activity allows children and adults to search for gemstones and mineral specimens among more common rocks and minerals. Learn the difference between rocks and minerals and how to distinguish between them. Each rock or mineral found is identified and can be taken home. Activity - Ages 5 yrs. To Adult - 45 minutes - 2:00 pm $4.00 per person -Reservations Recommended - (630) 833-1616