When they discover they can find fossils on their own, that adds to the excitement. The very idea of treasure is exciting. But beyond these glittering treasures found in crown jewels, minerals are used to produce products we use everyday. Everything from paint to wallboard uses minerals. They are even added to our food.
Table salt is a mineral.
Salt is so essential, it was once used as money. Join a rock club. Clubs have field trips to look for rocks and minerals. Members also swap and sell minerals among themselves. Check out the World Wide Web.