Where to Find Marcasite in Minnesota
Minnesota has 5 mapped collecting spots that report marcasite, spread across 3 counties. The largest share sits in Carlton County County with 3 spots. 5 of the spots are on land mapped as publicly accessible.
Map of 5 marcasite collecting spots in Minnesota
Best counties for marcasite in Minnesota
Ranked by the number of mapped marcasite spots. County links open the full rockhounding page for that county.
Every marcasite spot we track in Minnesota
Sorted by county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| CarltonChestnut Avenue | Carlton County |
| 46.6640, -92.4249 | Public |
| CloquetReservation Road | Carlton County |
| 46.7503, -92.4935 | Public |
| Cloquet (area 2)Cloquet Avenue | Carlton County |
| 46.7217, -92.4613 | Public |
| Hibbing (area 2) | Saint Louis County | 47.4443, -92.9945 | Public | |
| Bronk QuarrySeminary Drive | Winona County | 44.0338, -91.7227 | Public |
Before you go
Read the marcasite identification guide so you know what a keeper looks like in the field: Marcasite in the encyclopedia.
Marcasite in Minnesota FAQ
Where can you find marcasite in Minnesota?+
The mapped spots concentrate in Carlton County County, Saint Louis County County, and Winona County County. Every spot on this page appears on the map above with coordinates and access notes.
How many marcasite spots are mapped in Minnesota?+
5 spots across 3 counties. The RockHoundR app keeps the same spots on an offline map with public land overlays, geology layers, and your saved finds.
Is it legal to collect marcasite in Minnesota?+
Hand collecting of common rocks and minerals in small amounts for personal use is generally allowed on BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are closed to collecting. 5 of the 5 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.
Where else to find marcasite
More minerals to hunt in Minnesota
Hunt marcasite in Minnesota with the map in your pocket
RockHoundR puts these spots on an offline map with BLM and Forest Service overlays, geology layers, and a log for your finds.
