Where to Find Blue Chalcedony in the United States
4 mapped blue chalcedony spots across 3 U.S. states. Blue Chalcedony 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 blue chalcedony across the United States, with 4 mapped spots
Top states for blue chalcedony
States ranked by number of blue chalcedony spots in our database. States in bold link to a focused blue chalcedony-in-state list.
Every blue chalcedony spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| ChadronSchommer Road | Dawes County |
| 42.8713, -103.0211 | Public |
| Rockhound State ParkThunder Egg Trail | Luna County | 32.1873, -107.6126 | Public | |
| RockyfordCedar Butte Road | Oglala Lakota County |
| 43.4964, -102.5289 | Public |
| ScenicEast Highway 44 | Pennington County | 43.7522, -102.4966 | Public |
Blue Chalcedony rockhounding FAQ
Where is the best place to find blue chalcedony in the U.S.?+
South Dakota, Nebraska, New Mexico have the highest concentrations of blue chalcedony in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many blue chalcedony rockhounding spots does RockHoundR track?+
4 mapped spots across 3 states. The app keeps these on a map alongside your private finds.
Can I legally collect blue chalcedony on public land?+
Casual hand collecting of common rocks and minerals like blue chalcedony 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 blue chalcedony in the field?+
Field identification of blue chalcedony 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 blue chalcedony on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
