Where to Find Biotite
29 mapped biotite spots across 13 regions. Pick a region for its local guide, or browse every spot by country below. Biotite is reported at multiple rockhounding spots across the United States. The map below shows where collectors most often find it on legal public ground.
Top regions for biotite
United States
29 spots · 13 regionsMap showing where to find biotite, with 29 mapped spots
Every mapped biotite spot
Biotite rockhounding FAQ
Where is the best place to find biotite?+
Utah, Maine, Georgia have the highest concentrations of biotite in this list. Quality and access vary by area, so open the linked region pages for a detailed view.
How many biotite rockhounding spots does RockHoundR track?+
29 mapped spots across 13 regions. The app keeps these on a map alongside your private finds.
Can I legally collect biotite on public land?+
In the U.S., casual hand collecting of common rocks and minerals like biotite 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. Rules differ by country and region, so always check with the managing agency before a trip.
How do I identify biotite in the field?+
Field identification of biotite 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 biotite on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
