Where to Find Sillimanite
18 mapped sillimanite spots across 10 regions in 2 countries. Pick a region for its local guide, or browse every spot below. Sillimanite is reported at multiple rockhounding spots across the United States. The map below shows where collectors most often find it on legal public ground.
Every mapped sillimanite spot
Best spotJackson Co. Iron Mine dumpsJackson County, WisconsinPublic access · Actinolite, Almandine, Andalusite +4
Best spotNear Brandywine Springs State ParkNew Castle County, DelawarePermission required · Sillimanite
Ruggles MineGrafton County, New HampshirePublic access · Amethyst, Apatite, Beryl +12
Millsite Tin MineCoosa County, AlabamaCheck locally · Albite, Apatite, Cassiterite +6- General AreaIron County, WisconsinPublic access · Almandite, Biotite, Kyanite +5
- Gold Mines Creek (East)Clay County, AlabamaCheck locally · Actinolite, Chlorite, Olivine +4
- Hincks BridgeLa Vallée-de-la-Gatineau, QuébecPermission required · Almandine, Kyanite, Sillimanite +4
- King's CreekCherokee County, South CarolinaPublic access · Barite, Chalcopyrite, Galena +4
- Cherokee CountyCherokee County, South CarolinaPublic access · Barite, Hematite, Kyanite +3
- Paris Mt. State ParkGreenville County, South CarolinaPermission required · Beryl, Garnet, Quartz +3
- Brasstown ChurchTowns County, GeorgiaPublic access · Sillimanite, Kyanite, Biotite +1
- Hunter KnobTowns County, GeorgiaPublic access · Graphite, Muscovite, Quartz +1
- EnnisMadison County, MontanaPublic access · Andalusite, Kyanite, Sillimanite
- Henderson PointVance County, North CarolinaPublic access · Quartz, Rutile, Sillimanite
- MarbleCherokee County, North CarolinaPublic access · Sillimanite, Staurolite
- NorwichSoutheastern Connecticut Planning Region, ConnecticutPublic access · Corundum, Sillimanite
- BowersvilleHart County, GeorgiaPublic access · Sillimanite
- Hoopes ReservoirNew Castle County, DelawarePublic access · Sillimanite
Top regions for sillimanite
United States
17 spots · 9 regionsCanada
1 spots · 1 regionsSillimanite rockhounding FAQ
Where is the best place to find sillimanite?+
Georgia, South Carolina, Alabama have the highest concentrations of sillimanite in this list. Quality and access vary by area, so open the linked region pages for a detailed view.
How many sillimanite rockhounding spots does RockHoundR track?+
18 mapped spots across 10 regions in 2 countries. The app keeps these on a map alongside your private finds.
Can I legally collect sillimanite on public land?+
In the U.S., casual hand collecting of common rocks and minerals like sillimanite 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 sillimanite in the field?+
Field identification of sillimanite 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 sillimanite on the map
Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.
