Where to Find Marcasite
61 mapped marcasite spots across 17 regions. Pick a region for its local guide, or browse every spot by country 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.
Top regions for marcasite
Map showing where to find marcasite, with 61 mapped spots
Every mapped marcasite spot
Marcasite 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?+
61 mapped spots across 17 regions. 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.
