Where to Find Opal-quartz in the United States
1 mapped opal-quartz spots across 1 U.S. states. Opal-quartz 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 opal-quartz across the United States, with 1 mapped spots
Top states for opal-quartz
States ranked by number of opal-quartz spots in our database. States in bold link to a focused opal-quartz-in-state list.
Every opal-quartz spot we track
Sorted by state and county. Coordinates open in Google Maps.
| Spot | County | Minerals | Coordinates | Access |
|---|---|---|---|---|
| Babyhead to Miller Mt | Llano County |
| 30.7995, -98.6410 | Public |
Opal-quartz rockhounding FAQ
Where is the best place to find opal-quartz in the U.S.?+
Texas have the highest concentrations of opal-quartz in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many opal-quartz 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 opal-quartz on public land?+
Casual hand collecting of common rocks and minerals like opal-quartz 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 opal-quartz in the field?+
Field identification of opal-quartz 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 opal-quartz on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
