Show Schedule
Rock River Valley Geological Society's 52nd Annual Gem & Mineral Show
Rock River Crystals will be out and about on the weekend of October 3rd and 4th! Make your way to the Jefferson County Fair Park in Jefferson Wisconsin for a weekend of nerdy delights.💎✨
Saturday 10-5 & Sunday 10-4
Entry Fee is by donation! Many crystal, mineral, jewelry, and fossil vendors will be gathered to present their best offerings! You will also find kid's activities, prize drawings and the most fabulous community coming together in the name of ROCKS! Our Max will be attending this show in Jefferson to share some beautiful wares. On the same weekend, Steph will be up in the twin cities for ANOTHER Gem show.
2026 Annual Rock, Mineral & Gem Show by the Minnesota Mineral Club
Watch out St Paul, here comes trouble! Rock River Crystals is sending Steph on an epic adventure with some juicy gems and magical mineral offerings. Join us at the Minnesota State Fair Grounds in St. Paul on Saturday October 3rd and Sunday October 4th for a geologically grand time. Whether you are a serious collector, a curious newbie or just looking for your next unique jewelry piece, a show like this has a lot to offer. If you are in the twin cities area, you simply must come check it out!
Please see the flyer on the left for more details.