Where to Find Blue Corundum in the United States

3 mapped blue corundum spots across 3 U.S. states. Blue Corundum 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 corundum across the United States, with 3 mapped spots

Top states for blue corundum

States ranked by number of blue corundum spots in our database. States in bold link to a focused blue corundum-in-state list.

Every blue corundum spot we track

Sorted by state and county. Coordinates open in Google Maps.

SpotCountyMineralsCoordinatesAccess
AmityTimlow LaneOrange County41.2683, -74.4550Public
MacungieBeck RoadLehigh County40.5031, -75.5255Public
Tunk CreekKeystone RoadOkanogan County
  • Quartz
  • Blue Corundum
  • Pink Corundum
  • Thulite
  • Plagioclase
48.5615, -119.4866Public

Blue Corundum rockhounding FAQ

Where is the best place to find blue corundum in the U.S.?+
New York, Pennsylvania, Washington have the highest concentrations of blue corundum in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many blue corundum rockhounding spots does RockHoundR track?+
3 mapped spots across 3 states. The app keeps these on a map alongside your private finds.
Can I legally collect blue corundum on public land?+
Casual hand collecting of common rocks and minerals like blue corundum 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 corundum in the field?+
Field identification of blue corundum 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 corundum on the map

Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.

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