Where to Find Thomsonite Nodules in the United States
1 mapped thomsonite nodules spots across 1 U.S. states. Thomsonite Nodules is reported at multiple rockhounding spots across the United States. The map below shows where collectors most often find it on legal public ground.
Map showing where to find thomsonite nodules across the United States, with 1 mapped spots
Top states for thomsonite nodules
States ranked by number of thomsonite nodules spots in our database. States in bold link to a focused thomsonite nodules-in-state list.
Every thomsonite nodules spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Thomsonite BeachMN 61 | Cook County |
| 47.7278, -90.4584 | Public |
Thomsonite Nodules rockhounding FAQ
Where is the best place to find thomsonite nodules in the U.S.?+
Minnesota have the highest concentrations of thomsonite nodules in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many thomsonite nodules rockhounding spots does RockHoundR track?+
1 mapped spots across 1 states. The app keeps these on a map alongside your private finds.
Can I legally collect thomsonite nodules on public land?+
Casual hand collecting of common rocks and minerals like thomsonite nodules 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. Always check with the managing agency before a trip.
How do I identify thomsonite nodules in the field?+
Field identification of thomsonite nodules 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 thomsonite nodules on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
