Where to Find Marcasite
63 mapped marcasite spots across 19 regions in 2 countries. Pick a region for its local guide, or browse every spot below. Marcasite is reported at multiple rockhounding spots across the United States. The map below shows where collectors most often find it on legal public ground.
Every mapped marcasite spot
Best spotCloquetCarlton County, MinnesotaPermission required · Lake Superior Agate, Garnet, Greenalite +4
Best spotBen Lomond MountainWarren County, TennesseePermission required · Calcite, Celestite, Dolomite +3
Best spotBig Pine CreekWarren County, IndianaPublic access · Sphalerite, Barite, Fossilized Wood +3
Best spotHibbing (area 2)Saint Louis County, MinnesotaPublic access · Iron, Agate, Jasper +3
Best spotDemopolis (Black Belt)Marengo County, AlabamaPublic access · Fossil, Shark Tooth, Calcite +1
Best spotRacineRacine County, WisconsinPublic access · Fossil, Calcite, Marcasite
Montreal MineIron County, WisconsinPublic access · Actinolite, Barite, Selenite +15- Ruggles MineGrafton County, New HampshirePublic access · Amethyst, Apatite, Beryl +12
- FredericktownMadison County, MissouriPublic access · Aragonite, Azurite, Calcite +10
- Tintic MountainsJuab County, UtahPublic access · Pyrolusite, Siderite, Cerussite +10
- Decaturville CraterLaclede County, MissouriPublic access · Albite, Galena, Glauconite +9
MiamiOttawa County, OklahomaCheck locally · Aragonite, Barite, Calcite +9- Ruepple Iron MineFranklin County, MissouriPublic access · Amethyst, Goethite, Hematite +9
- SteelvilleCrawford County, MissouriPublic access · Allophane, Amethyst, Azurite +9
- Copper Globe and other mines in San Rafael districtEmery County, UtahPublic access · Anglesite, Azurite, Cerussite +8
- Eldon & EttervilleMoniteau County, MissouriPublic access · Barite, Calcite, Cerussite +8
- SpringfieldGreene County, MissouriPublic access · Barite, Calcite, Cerussite +7
- Wythe CountyWythe County, VirginiaPermission required · Aragonite, Calcite, Fluorite +7
- BixbyIron County, MissouriPublic access · Bornite, Chalcocite, Chalcopyrite +6
- Copper Hill MineCrawford County, MissouriPermission required · Azurite, Barite, Chalcopyrite +6
- Moselle Iron MinesPhelps County, MissouriPublic access · Amethyst, Arsenopyrite, Azurite +6
- Old MinesWashington County, MissouriPublic access · Barite, Calcite, Galena +6
- GalenaCherokee County, KansasPublic access · Galena, Sphalerite, Barite +5
- SanduskyErie County, OhioPublic access · Calcite, Celestite, Dolomite +5
- TroyLincoln County, MissouriPublic access · Calcite, Marcasite, Pyrite +5
- CarltonCarlton County, MinnesotaPublic access · Lake Superior Agate, Garnet, Greenalite +4
- Cloquet (area 2)Carlton County, MinnesotaPublic access · Lake Superior Agate, Garnet, Greenalite +4
- Defiance QuarrySaint Charles County, MissouriPublic access · Yellow Calcite, White Calcite, Goethite +4
- DodgevilleIowa County, WisconsinPublic access · Barite, Calcite, Galena +4
- Finger Lakes State ParkBoone County, MissouriPublic access · Aragonite, Copiapite, Gypsum +4
- GenoaOttawa County, OhioPublic access · Calcite, Celestite, Dolomite +4
- Hazel GreenGrant County, WisconsinPublic access · Barite, Calcite, Galena +4
- KeokukLee County, IowaPublic access · Keokuk Geode, Calcite, Chalcedony +4
- Lucky Strick and other mines in San Rafael districtEmery County, UtahPublic access · Bieberite, Chalcopyrite, Galena +4
- Maple Grove QuarrySeneca County, OhioPublic access · Calcite, Celestite, Dolomite +4
- PlattevilleGrant County, WisconsinPublic access · Barite, Calcite, Galena +4
- WerleyGrant County, WisconsinPublic access · Barite, Dogtooth Calcite, Galena +4
- ArnoldJefferson County, MissouriPublic access · Geode, Dolomite, Marcasite +3
- BellevueBlaine County, IdahoPublic access · Galena, Dufrenoysite, Magnetite +3
- BoatlandFentress County, TennesseePublic access · Calcite, Celestite, Dolomite +3
- Bronk QuarryWinona County, MinnesotaPublic access · Calcite, Dolomite, Goethite +3
- Carpenter Hollow and Buffalo CoveFentress County, TennesseePublic access · Calcite, Celestite, Dolomite +3
- Hinch Copper MineCrawford County, MissouriPublic access · Copper, Cuprite, Limonite +3
- Kansas CityJackson County, MissouriPublic access · Aragonite, Barite, Calcite +3
- LivingstonOverton County, TennesseePublic access · Calcite, Celestite, Dolomite +3
- OshkoshWaushara County, WisconsinPublic access · Calcite, Galena, Marcasite +3
- WatchetSomerset, SomersetPublic access · Ammonite, Pyrite, Gryphaea +3
- Adrian’s QuarryBoone County, MissouriPublic access · Calcite, Chalcopyrite, Marcasite +2
- Crooked Creek CraterCrawford County, MissouriPublic access · Barite, Galena, Marcasite +2
- HuntingtonHuntington County, IndianaPublic access · Calcite, Marcasite, Pyrite +2
- Parke CountyParke County, IndianaPublic access · Goethite, Marcasite, Pyrite +2
- West MineralCherokee County, KansasPublic access · Pyrite, Calcite, Dolomite +2
- AxtellSanpete County, UtahPublic access · Galena, Marcasite, Pyrite +1
- Brown County State ParkBrown County, IndianaPublic access · Geode, Marcasite, Aragonite +1
- BlufftonWells County, IndianaPublic access · Dolomite, Marcasite, Pyrite
- ElizabethtownBartholomew County, IndianaPublic access · Fluorescent Calcite, Fluorite, Marcasite
- NorristownShelby County, IndianaPublic access · Fluorescent Calcite, Fluorite, Marcasite
- QuarryGrand Isle County, VermontPublic access · Marcasite, Fossil, Gastropod
- SayrevilleMiddlesex County, New JerseyPublic access · Marcasite, Pyrite, Petrified Wood
- BicknellKnox County, IndianaPublic access · Marcasite, Pyrite
- East BrooklynGrundy County, IllinoisPublic access · Marcasite, Pyrite
- HannibalRalls County, MissouriPublic access · Marcasite, Pyrite
- General Area (marcasite)Huron County, MichiganPublic access · Marcasite
Top regions for marcasite
United States
62 spots · 18 regionsUnited Kingdom
1 spots · 1 regionsMarcasite rockhounding FAQ
Where is the best place to find marcasite?+
Missouri, Indiana, Wisconsin have the highest concentrations of marcasite in this list. Quality and access vary by area, so open the linked region pages for a detailed view.
How many marcasite rockhounding spots does RockHoundR track?+
63 mapped spots across 19 regions in 2 countries. The app keeps these on a map alongside your private finds.
Can I legally collect marcasite on public land?+
In the U.S., casual hand collecting of common rocks and minerals like marcasite is allowed on most BLM and U.S. Forest Service land, with daily and annual limits set by the local field office. National parks, most state parks, and tribal land are off-limits. Rules differ by country and region, so always check with the managing agency before a trip.
How do I identify marcasite in the field?+
Field identification of marcasite comes down to color, hardness, fracture, and luster. The RockHoundR app links to geology details for each spot to help narrow down what you might be picking up.
Hunt marcasite on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
