GEM & Mineral shows in the Midwest

Upcoming Gem & Mineral Shows (Midwest)

A regional calendar for members. Always confirm details on the host club’s website before traveling. Compiled August 2026; shows marked “Dates TBD” have not posted exact days yet.

August 2026

Michigan

• Quincy Mine Hoist Rock Swap — Aug 5, 2026, Hancock (Quincy Mine Hoist)
• International Gem & Jewelry Show – Novi — Aug 7-9, 2026, Novi (Suburban Collection Showplace)
• Copper Country Rock & Mineral Show — Aug 7-9, 2026, Hancock (Hancock Middle School)

Indiana

• Bloomington Indiana Gem & Mineral Show — Aug 7-9, 2026, Bloomington (Monroe Convention Center)
• Michiana Gem & Mineral Show — Aug 21-23, 2026, South Bend (St. Joseph County 4-H Fairgrounds)

Illinois

• International Gem & Jewelry Show – Schaumburg — Aug 14-16, 2026, Schaumburg (Renaissance Schaumburg Convention Center)
• Peoria Academy of Science Gem, Mineral & Fossil Show — Aug 22-23, 2026, East Peoria (East Side Centre)

Wisconsin

• Racine Geological Society Summer Swap — Aug 8, 2026, Mount Pleasant (Mount Pleasant Parks & Rec Building)
• Heart of Wisconsin G&MS Rock Swap — Aug 15, 2026, Stevens Point (Dunham’s Sports parking lot)
• The Milwaukee Mineral, Fossil, Gem & Jewelry Show — Aug 19-23, 2026, Milwaukee (Baird Center)
• Northwest Wisconsin Gem & Mineral Society Show — Aug 22-23, 2026, Rice Lake (Barron County Fairgrounds)
• Chippewa Valley G&MS Fall Rock Swap — Aug 29-30, 2026, Elk Mound (Town of Wheaton Ball Parks)

Iowa

• Siouxland Gem & Mineral Society Rock Swap — Aug 8, 2026, Sioux City (Lewis & Clark Interpretive Center)

Missouri

• Treasures of the Earth (GSLAESC) — Aug 14-16, 2026, Bridgeton (Machinists’ District 9 Hall)

September 2026

Michigan

• Grand Marais Rock & Mineral Show (Agatelady) — Sept 11-12, 2026, Grand Marais (Burt Township Community Center)
• Tulip City Gem & Mineral Show — Sept 18-20, 2026, Holland (Holland Charter Twp. Community Center)
• SE Michigan Gem, Mineral & Rock SuperSwap — Sept 19-20, 2026, SE Michigan (New location TBD (MMLS))
• Livingston Rockhound’s Dream Show — Dates TBD, Howell (Hartland Educational Support Service Center)
• Flint Rock & Gem Show — Dates TBD, Flint (Crossroads Village)
• Grand Traverse Area Rock & Mineral Club Show — Dates TBD, Traverse City (Cherryland VFW Post)

Indiana

• Greater Indianapolis Gem, Mineral & Fossil Show — Sept 11-13, 2026, Greenfield (Hancock County 4-H Fairgrounds)
• Brown County Rock & Mineral Show — Sept 19-20, 2026, Nashville (Brown County 4-H Fairgrounds)

Ohio

• Toledo Treasures Unearthed Gem & Mineral Show — Sept 11-13, 2026, Bowling Green (Wood County Fairgrounds (Pratt Pavilion))
• GemStreet USA – Cleveland (Fall) — Sept 18-20, 2026, Middleburg Heights (Cuyahoga County Fairgrounds)

Illinois

• Rock River Valley Gem & Mineral Society Show — Sept 12, 2026, Rockford (A-American Companies)
• International Gem & Jewelry Show – Collinsville — Sept 18-20, 2026, Collinsville (Gateway Center)

Wisconsin

• Coulee Rock Club Rock Swap — Sept 12, 2026, Onalaska (Onalaska OmniCenter)
• Oshkosh Earth Science Club Show — Sept 26-27, 2026, Oshkosh (Sunnyview Exposition Center)

Minnesota

• G&LW Gem & Jewelry Show – Minneapolis — Sept 20-21, 2026, Bloomington (DoubleTree Bloomington-Minneapolis South)

Iowa

• Cedar Valley Rocks & Minerals Society Rock Auction — Sept 19-20, 2026, Amana (Amana RV Park & Event Center)
• Des Moines Lapidary Society Rock Swap — Sept 19, 2026, Des Moines (DMLS clubhouse)
• Geode Family Fest — Sept 25-27, 2026, Keokuk (First Christian Church lot)

Missouri

• Mozarkite Society of Lincoln Show — Sept 18-20, 2026, Lincoln (Lincoln City Park)
• Rock Hobby Club Fall Show (Rocks Rule!) — Sept 25-27, 2026, Kirkwood (Kirkwood Community Center)
• Tri-State Gem & Mineral Society Fall Show — Sept 25-27, 2026, Joplin (Joplin History & Mineral Museum)

October 2026

Michigan

• G&LW Gem Show – Westland — Oct 9-11, 2026, Westland (SoHo Banquet & Event Center)
• Greater Detroit Gem, Mineral & Fossil Show — Oct 9-11, 2026, Warren (Macomb Community College Sports & Expo Center)
• Central Michigan Lapidary, Fossil, Mineral & Jewelry Show — Oct 16-18, 2026, Mason (Ingham County Fairgrounds (Main Arena))
• International Gem & Jewelry Show – Southfield — Oct 30-Nov 1, 2026, Southfield (Southfield Pavilion)

Indiana

• Indianapolis Fall Gem, Mineral & Jewelry Show — Oct 16-18, 2026, Danville (Hendricks County 4-H Fairgrounds)
• Three Rivers Gem & Mineral Show — Oct 16-18, 2026, Fort Wayne (Allen County Fairgrounds)
• Evansville Lapidary Society Show — Dates TBD, Evansville (C.K. Newsome Community Center)

Ohio

• GemStreet USA – Dayton — Oct 2-4, 2026, Troy (Miami County Fairgrounds)
• Gem Jewelry & Mineral Expo – Dayton — Dates TBD, Dayton (Montgomery County Fairgrounds)
• Gemboree Fall Gem & Mineral Show — Oct 24-25, 2026, Cuyahoga Falls (Emidio & Sons Expo Center)

Illinois

• Lincoln Orbit Earth Science Society Show — Oct 3-4, 2026, Springfield (Orr Building, IL State Fairgrounds)
• Worthen Earth Searchers Show — Oct 3-4, 2026, East Moline (Rock Island County Fairgrounds)

Wisconsin

• Rock River Valley Geological Society Show — Oct 3-4, 2026, Jefferson (Jefferson County Fair Park)

Minnesota

• Minnesota Mineral Club Annual Show — Oct 3-4, 2026, Falcon Heights (Minnesota State Fairgrounds (Grandstand))
• Anoka County Gem & Mineral Club Show (Fall) — Oct 24-25, 2026, Crystal (Crystal Community Center)

Iowa

• Siouxland Gem & Mineral Society Annual Show — Oct 3-4, 2026, Correctionville (1856 Highway 31)
• Sac & Fox Lapidary Club Rocktoberfest — Oct 10-11, 2026, Fairfield (The Old Armory / Blue Rose Room)
• Des Moines Lapidary Society Show — Oct 17-18, 2026, Des Moines (Iowa State Fairgrounds (Elwell Center))
• Black Hawk Gem & Mineral Club Fall Show — Dates TBD, Davenport (Mississippi Valley Fairgrounds)

Missouri

• Ozarks Gem & Mineral Society Springfield Show — Oct 16-18, 2026, Springfield (Ozark Empire Fairgrounds (E*Plex))

November 2026

Michigan

• MMRC Annual Show — Dates TBD, Midland (Chippewa Nature Center)

Ohio

• International Gem & Jewelry Show – Columbus — Nov 6-8, 2026, Columbus (Ohio Expo Center (Kasich Hall B))

Illinois

• Northwest Illinois Rock Club Show — Nov 14-15, 2026, Freeport (Freeport Eagles Club #679)

Wisconsin

• Racine Geological Society Holiday Show — Dates TBD, Sturtevant (Fountain Banquet Hall)
• Madison Gem & Mineral Club Show — Nov 21-22, 2026, Madison (Alliant Energy Center)

Missouri

• Kansas City Gem, Mineral, Jewelry & Bead Show (Fall) — Nov 6-8, 2026, Kansas City (KCI Expo Center)
• St. Louis Mineral & Gem Society Show — Nov 20-22, 2026, Affton (Affton White Rogers Community Center)

December 2026

Ohio

• Gem Jewelry & Mineral Expo – Sharonville — Dates TBD, Sharonville (Sharonville Convention Center)

Illinois

• International Gem & Jewelry Show – Rosemont — Dec 11-13, 2026, Rosemont (Donald E. Stephens Convention Center)

February 2027

Michigan

• International Gem & Jewelry Show – Southfield — Dates TBD, Southfield (Southfield Pavilion)

Indiana

• GeoFest – Indiana State Museum — Feb 19-21, 2027, Indianapolis (Indiana State Museum)

Ohio

• Gem Jewelry & Mineral Expo – Sharonville — Dates TBD, Sharonville (Sharonville Convention Center)

Minnesota

• Crosslake Agate, Gem & Mineral Show — Dates TBD, Crosslake (The Gathering Event Center)

Missouri

• Rock Hobby Club Winter Show (Rocks Rule!) — Dates TBD, Kirkwood (Kirkwood Community Center)

March 2027

Michigan

• Roamin Club Rock, Mineral & Fossil Auction — Mar 6-7, 2027, Livonia (VisTaTech Center, Schoolcraft College)
• G&LW Gem Show – Westland — Dates TBD, Westland (SoHo Banquet & Event Center)
• Michigan Gem & Mineral Society Annual Show — Dates TBD, Jackson (American 1 Event Center (Keeley Park))
• Annual Metro Rock Swap — Dates TBD, Taylor (St. John’s Lutheran Church)

Indiana

• Richmond Gem, Mineral, Jewelry & Fossil Show (EIGGS) — Dates TBD, Richmond (First Bank Kuhlman Center)

Ohio

• GemStreet USA – Cleveland (Spring) — Dates TBD, Middleburg Heights (Cuyahoga County Fairgrounds)
• Stark County Gem & Mineral Show — Dates TBD, Canton (Stark County Fairgrounds)

Illinois

• ESCONI Gem, Mineral & Fossil Show — Dates TBD, Wheaton (DuPage County Fairgrounds)
• Geodeland Earth Science Club Show — Dates TBD, Macomb (WIU Student Union Ballroom)
• Des Plaines Valley Geological Society Show — Dates TBD, Des Plaines (Des Plaines Park District Leisure Center)

Wisconsin

• Kettle Moraine Geological Society Show — Mar 5-7, 2027, West Bend (Washington County Fair Park)
• Badger Lapidary & Geological Society Show — Dates TBD, Janesville (Rock County Fairgrounds)

Minnesota

• St. Cloud Agate Swap — Mar 13-14, 2027, St. Cloud (Rivers Edge Convention Center)
• G&LW Gem & Jewelry Show – Minneapolis — Dates TBD, Bloomington (DoubleTree Bloomington-Minneapolis South)

Iowa

• River Valley Rockhounds Show — Dates TBD, Fort Dodge (Webster County Fairgrounds)

Missouri

• Kansas City Gem & Mineral Show (Spring) — Mar 12-14, 2027, Kansas City (KCI Expo Center)
• Greater St. Louis Rock Hobby Club Show — Dates TBD, Bridgeton (Machinists Hall)

April 2027

Michigan

• Indian Mounds Rock & Mineral Show — Dates TBD, Wyoming (Rogers Plaza Town Center)
• Kalamazoo Rock, Gem, Fossil & Mineral Show — Apr 30-May 2, 2027, Kalamazoo (Kalamazoo County Expo Center)

Indiana

• Indianapolis Spring Gem, Mineral & Jewelry Show — Dates TBD, Danville (Hendricks County 4-H Fairgrounds)

Ohio

• Central Ohio Mineral, Fossil, Gem & Jewelry Show — Apr 3-4, 2027, Columbus (Ohio Expo Center (Rhodes Center))
• Miami County Gem & Mineral Club Show — Dates TBD, Troy (Miami County Fairgrounds)
• Gemboree Spring Gem & Mineral Show — Dates TBD, Cuyahoga Falls (Emidio & Sons Expo Center)

Illinois

• Southern Illinois Earth Science Club Show — Dates TBD, Marion (Pavilion of the City of Marion)
• Rockhounds of Central & Southern Illinois Show — Dates TBD, Decatur (Decatur Conference Center & Hotel)

Wisconsin

• Chippewa Valley G&MS Show & Sale — Dates TBD, Eau Claire (Eau Claire County Expo Center)

Minnesota

• Anoka County Gem & Mineral Club Show (Spring) — Apr 11-12, 2027, Crystal (Crystal Community Center)
• Elk River Rock’N Gem & Artisan Show — Dates TBD, Elk River (Furniture and Things Community Event Center)

Iowa

• Cedar Valley Rocks & Minerals Society Show — Apr 3-4, 2027, Cedar Rapids (Hawkeye Downs Expo Center)
• Black Hawk Gem & Mineral Club Spring Show — Dates TBD, Davenport (Mississippi Valley Fairgrounds)

May 2027

Michigan

• International Gem & Jewelry Show – Novi — Dates TBD, Novi (Suburban Collection Showplace)

Ohio

• GeoFair of Greater Cincinnati — Dates TBD, Hamilton (Butler County Fairground Event Center)
• Parma Lapidary Club Rock-A-Rama (58th) — May 15-16, 2027, North Olmsted (North Olmsted Soccer Sportsplex)
• State Line Gem & Mineral Show — Dates TBD, Wauseon (Fulton County Fairgrounds)

Illinois

• CGMA Gem, Mineral, Fossil & Jewelry Show — May 29-30, 2027, St. Charles (Kane County Fairgrounds)

Wisconsin

• Heart of Wisconsin Gem, Mineral, Fossil & Jewelry Show — Dates TBD, Rothschild (Central Wisconsin Expo Center)
• Wisconsin Geological Society Show — Dates TBD, Waukesha (Waukesha Expo Center)

Minnesota

• Cuyuna Rock, Gem & Mineral Society Show — Dates TBD, Brainerd (Crow Wing County Fairgrounds)

Missouri

• CMRLC Gem & Mineral Show — Dates TBD, Columbia (Knights of Columbus Hall)
• Tri-State Gem & Mineral Society Spring Show — Dates TBD, Joplin (Joplin History & Mineral Museum)

June 2027

Indiana

• Noblesville Gem, Mineral, Jewelry & More Show — Dates TBD, Noblesville (Hamilton County 4-H Fairgrounds)
• Lawrence County Rock Club Show — Dates TBD, Bedford (Lawrence County Fairgrounds)

Ohio

• International Gem & Jewelry Show – Columbus — Dates TBD, Columbus (Ohio Expo Center (Kasich Hall B))
• Mid-Ohio Mineral & Fossil Club Show — Dates TBD, Mansfield (Richland County Fairgrounds)

Wisconsin

• Coulee Rock Club Show & Sale — Dates TBD, Onalaska (Onalaska OmniCenter)

Minnesota

• Rock-N-Gem & Artisan Show — Dates TBD, Milaca (Hairy Mosquito Trading Company)

Missouri

• Osage Rock & Mineral Show — Dates TBD, Eldon (Eldon Community Center)
• Kansas City Wholesale Gem Show (Summer) — Dates TBD, Kansas City (KCI Expo Center)