Graniteville: Actinolite & Apatite Rockhounding in Iron County, Missouri
Updated June 2026
Graniteville is a mapped rockhounding spot in Iron County, Missouri. Reported finds include actinolite, apatite, beryl, fluorite, galena, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.
Map showing Graniteville in Iron County, Missouri
Quick details
- Access
- Public area
- County
- Iron County
- State
- Missouri
- Nearest road
- County Road 96
- Postcode
- 63623
- Coordinates
- 37.66174, -90.68136
Geology at Graniteville
This spot sits on St. Francois Mountains intrusive suite (subvolcanic, alkali granitic ring complexes), mapped as alkali feldspar granite that formed roughly 1600 to 1000 million years ago. Granitic rock like this is where pegmatite pockets tend to occur, the coarse-crystal settings that typically carry beryl, tourmaline, mica, and feldspar.
- Mapped unit
- St. Francois Mountains intrusive suite (subvolcanic, alkali granitic ring complexes)
- Age
- 1600–1000 Ma (Mesoproterozoic)
- Rock types
- alkali feldspar granite
- Elevation
- 1,210 ft
Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.
Best time to visit Graniteville
Best months: February to December. Typical highs run 87°F in midsummer and 42°F in midwinter, with winter lows near 21°F.
Climate normals: NOAA 1991-2020 monthlies, FARMINGTON station (17 mi away), adjusted for elevation.
Land & collecting status
Generally open to casual rockhounding
Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.
Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.
Sources & verification
Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.
Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.
Found at Graniteville
Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.
Nearby rockhounding spots
Other rockhounding spots within driving distance of Graniteville.
- Iron MountainSaint Francois County, Missouri · 4 mi awayYellow Garnet, Apatite, Barite
- Shepherd MountainIron County, Missouri · 4 mi awayFluorite, Hematite, Magnetite
- BellviewIron County, Missouri · 7 mi awayActinolite
- Cuthbertson MountainIron County, Missouri · 8 mi awayHematite, Pyrolusite, Chalcopyrite
- St. Francois CountySaint Francois County, Missouri · 18 mi awayBarite, Goethite, Pyrite
- PalmerWashington County, Missouri · 19 mi awayAnglesite, Calcite, Cerussite
- Captain CreekMadison County, Missouri · 20 mi awayActinolite, Epidote
- FredericktownMadison County, Missouri · 22 mi awayAragonite, Azurite, Calcite
Across the state line from Graniteville
Graniteville is close enough to the Missouri border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.
