Where to Find Perthite in the United States
2 mapped perthite spots across 2 U.S. states. Perthite is reported at multiple rockhounding spots across the United States. The map below shows where collectors most often find it on legal public ground.
Learn about perthite: properties & identification →Map showing where to find perthite across the United States, with 2 mapped spots
Top states for perthite
States ranked by number of perthite spots in our database. States in bold link to a focused perthite-in-state list.
Every perthite spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Lyon Mountain | Clinton County | 44.7227, -73.8541 | Public | |
| MonetaReindeer Point | Bedford County |
| 37.1947, -79.5686 | Public |
Perthite rockhounding FAQ
Where is the best place to find perthite in the U.S.?+
New York, Virginia have the highest concentrations of perthite in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many perthite 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 perthite on public land?+
Casual hand collecting of common rocks and minerals like perthite 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 perthite in the field?+
Field identification of perthite 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 perthite on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
