Where to Find Spherulitic Chert in the United States
1 mapped spherulitic chert spots across 1 U.S. states. Spherulitic Chert 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 spherulitic chert across the United States, with 1 mapped spots
Top states for spherulitic chert
States ranked by number of spherulitic chert spots in our database. States in bold link to a focused spherulitic chert-in-state list.
Every spherulitic chert spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Coastal TrailCoastal Trail | — |
| 37.7880, -122.5013 | Public |
Spherulitic Chert rockhounding FAQ
Where is the best place to find spherulitic chert in the U.S.?+
California have the highest concentrations of spherulitic chert in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many spherulitic chert 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 spherulitic chert on public land?+
Casual hand collecting of common rocks and minerals like spherulitic chert 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 spherulitic chert in the field?+
Field identification of spherulitic chert 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 spherulitic chert on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
