Where to Find Corundum in the United States
48 mapped corundum spots across 11 U.S. states. 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 corundum across the United States, with 48 mapped spots
Top states for corundum
States ranked by number of corundum spots in our database. States in bold link to a focused corundum-in-state list.
Every corundum spot we track
Sorted by state and county. Coordinates open in Google Maps.
Corundum rockhounding FAQ
Where is the best place to find corundum in the U.S.?+
North Carolina, Georgia, Idaho have the highest concentrations of corundum in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many corundum rockhounding spots does RockHoundR track?+
48 mapped spots across 11 states. The app keeps these on a map alongside your private finds.
Can I legally collect corundum on public land?+
Casual hand collecting of common rocks and minerals like 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 corundum in the field?+
Field identification of 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 corundum on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
