RockWoofFound alongside
Quartz
Mohs 7. Six-sided points; smoky quartz is NH’s state gem. Mindat
15 sites
Fluorite
Mohs 4. Cubes in purple, green or yellow; many glow under UV. Mindat
15 sites
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
13 sites
Magnetite
Mohs 5.5–6.5. Black and strongly magnetic. Mindat
8 sites
Galena
Mohs 2.5–2.75. Heavy, silvery lead ore that breaks into cubes. Mindat
6 sites
Mica
Mohs 2–3. Peels into thin, flexible, shiny sheets. Mindat
5 sites
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
By county
Madison County (4) · Iron County (3) · St. Francois County (2) · Crawford County (2) · Shannon County (2) · Dent County (1) · Washington County (1)
Sites
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Boss-Bixby | Copper, Iron | Apatite, Bornite, Chalcocite, Chalcopyrite, Cobaltite, Covellite, Cuprite, Galena, Geikielite, Goethite, Hematite, Lepidocrocite, Magnetite, Molybdenite, Pyrite, Sphalerite, Chiastolite, Chloanthite, Chlorite, Epidote, Fluorite, Garnet, Ilmenite, Linnaeite, Rutile | Prospect | 37.643, -91.179 |
| Pea Ridge | Iron | Apatite, Hematite, Magnetite | Producer | 38.127, -91.047 |
| Pilot Knob | Iron | Magnetite | Prospect | 37.619, -90.633 |
| Iron Mountain | Iron | Magnetite, Martite | Past Producer | 37.705, -90.635 |
| Silver Mine | Silver, Zinc, Lead, Tungsten | Sphalerite | Past Producer | 37.533, -90.483 |
| Bourbon Deposit | Iron | — | Prospect | 38.154, -91.247 |
| Thorny Mountain Mine | — | — | Prospect | 37.105, -91.182 |
| Pilot Knob Pellet Comp. Mine/Plant | — | — | Producer | 37.619, -90.633 |
| Iron Mountain Mine | — | — | Past Producer | 37.705, -90.635 |
| Camels Hump | Iron | — | Prospect | 37.798, -91.232 |
| Einstein Mine | — | — | Past Producer | 37.557, -90.443 |
| Harry Clover Property | — | — | Past Producer | 37.524, -90.211 |
| Sheahan Granite Quarry | — | — | Past Producer | 37.669, -90.682 |
| Einstein Mine- Apex Mine | — | — | Past Producer | 37.558, -90.443 |
| Horner Mountain Mine | — | — | Past Producer | 37.089, -91.249 |
Back to Rockhounding in Missouri.
How we built this page: we counted named sites in the USGS Mineral Resources Data System (MRDS) for this area, left out sand, gravel, crushed stone, clay pits and unnamed sites, grouped them by Census county, and linked every site to its USGS record. We did not visit these sites, and MRDS does not tell you who owns the land or whether collecting is allowed.
Source: USGS Mineral Resources Data System (MRDS). USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date. Each site links to its USGS record.
Updated