Where to Find Fibrolite in the United States
2 mapped fibrolite spots across 2 U.S. states. Fibrolite 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 fibrolite across the United States, with 2 mapped spots
Top states for fibrolite
States ranked by number of fibrolite spots in our database. States in bold link to a focused fibrolite-in-state list.
Every fibrolite spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Clearwater RiverUS 12;US 95 | Nez Perce County | 46.4335, -116.9515 | Public | |
| FranklinLyle Mill Road | Macon County | 35.2261, -83.3606 | Public |
Fibrolite rockhounding FAQ
Where is the best place to find fibrolite in the U.S.?+
Idaho, North Carolina have the highest concentrations of fibrolite in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many fibrolite rockhounding spots does RockHoundR track?+
2 mapped spots across 2 states. The app keeps these on a map alongside your private finds.
Can I legally collect fibrolite on public land?+
Casual hand collecting of common rocks and minerals like fibrolite 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 fibrolite in the field?+
Field identification of fibrolite 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 fibrolite on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
