RockWoofFound alongside
Quartz
Mohs 7. Six-sided points; smoky quartz is NH’s state gem. Mindat
110 sites
Fluorite
Mohs 4. Cubes in purple, green or yellow; many glow under UV. Mindat
104 sites
Tourmaline
Mohs 7–7.5. Long striated crystals, often black (schorl) or green and pink (elbaite). Mindat
3 sites
Garnet
Mohs 6.5–7.5. Usually deep red, round many-faced crystals. Mindat
1 site
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
1 site
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
By county
Polk County (30) · Hardee County (18) · Manatee County (14) · Hillsborough County (12) · Columbia County (6) · Hamilton County (4) · DeSoto County (4) · Alachua County (3) · Clay County (3) · Sarasota County (2) · Baker County (2) · Suwannee County (2) · Marion County (2) · Lafayette County (2) · St. Johns County (1) · Lake County (1) · Brevard County (1) · Bradford County (1) · Citrus County (1) · Taylor County (1)
Sites (first 60)
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Swift Creek Mine | Phosphorus-Phosphates | Collophane | Producer | 30.447, -82.856 |
| Hard Rock | Phosphorus-Phosphates | Collophane | Past Producer | 28.967, -82.418 |
| Big Four Mine | Phosphorus-Phosphates | Collophane | Producer | 27.744, -82.078 |
| Fort Green Mine | Phosphorus-Phosphates | Collophane | Producer | 27.670, -82.010 |
| Wingate Creek Mine | Phosphorus-Phosphates | Collophane | Past Producer | 27.497, -82.122 |
| Noralyn/Phosphoria | Phosphorus-Phosphates | Collophane | Past Producer | 27.845, -81.865 |
| Suwannee River Mine | Phosphorus-Phosphates | Collophane | Past Producer | 30.439, -82.814 |
| Nichols Mine | Phosphorus-Phosphates | Collophane | Past Producer | 27.895, -82.035 |
| Polk County Mine | Phosphorus-Phosphates | Collophane | Past Producer | 27.859, -81.981 |
| Clear Springs | Phosphorus-Phosphates | Collophane | Past Producer | 27.866, -81.814 |
| Kingsford Mine | Phosphorus-Phosphates | Collophane | Producer | 27.834, -81.998 |
| Fort Meade Mine Gardinier | Phosphorus-Phosphates | Collophane | Producer | 27.687, -81.847 |
| Clear Springs Mine | Phosphorus-Phosphates | Collophane | Producer | 27.853, -81.808 |
| Fort Meade Mine Mobil | Phosphorus-Phosphates | Collophane | Producer | 27.789, -81.797 |
| Noralyn/Phosphoria Mines | Phosphorus-Phosphates | Collophane | Producer | 27.825, -81.900 |
| Northeast Florida Phosphate Deposit | Phosphorus-Phosphates | Collophane | Prospect | 30.063, -81.456 |
| Fort Meade Mine - Cargill | Phosphorus-Phosphates | Collophane | Producer | 27.734, -81.847 |
| Farmland Hillsborough Reserve | Phosphorus-Phosphates | — | Unknown | 27.739, -82.200 |
| North Lake City | Phosphorus-Phosphates | — | Prospect | 30.300, -82.500 |
| Acrefoot Johnson | Phosphorus-Phosphates | — | Prospect | 27.375, -81.867 |
| Hopewell Mine | Phosphorus-Phosphates | — | Producer | 27.925, -82.105 |
| Bonny Lake Mine | Phosphorus-Phosphates | — | Plant | 27.906, -81.920 |
| Farmland/Ona Area-Small Ownership | Phosphorus-Phosphates | — | Prospect | 27.444, -81.877 |
| Osceola National Forest | Phosphorus-Phosphates | — | Prospect | 30.317, -82.451 |
| Debris Deposits | Phosphorus-Phosphates | — | Prospect | 27.900, -81.975 |
| Rutland-Colvin-Vale | Phosphorus-Phosphates | — | Prospect | 27.567, -82.278 |
| Saddle Creek - Ebersbach | Phosphorus-Phosphates | — | Past Producer | 28.033, -81.834 |
| North Columbia County #2 | Phosphorus-Phosphates | — | Prospect | 30.491, -82.508 |
| S. E. Hillsborough | Phosphorus-Phosphates | — | Producer | 27.690, -82.091 |
| Keys Property | Phosphorus-Phosphates | — | Prospect | 27.292, -82.083 |
| Watson Mine | Phosphorus-Phosphates | — | Plant | 27.725, -81.811 |
| Lakes Deposit | Phosphorus-Phosphates | — | Prospect | 29.667, -82.083 |
| Sarasota County Deposit No. 1 | Phosphorus-Phosphates | — | Prospect | 27.114, -82.108 |
| Sarasota County Deposit No. 2 | Phosphorus-Phosphates | — | Occurrence | 27.186, -82.154 |
| Lake County Deposit | Phosphorus-Phosphates | — | Prospect | 28.843, -81.494 |
| North Baker County Deposit | Phosphorus-Phosphates | — | Prospect | 30.467, -82.333 |
| South Fort Meade Mine | Phosphorus-Phosphates | — | Prospect | 27.667, -81.763 |
| Little Payne Creek | Phosphorus-Phosphates | — | Unknown | 27.624, -81.873 |
| La Crosse Deposit | Phosphorus-Phosphates | — | Prospect | 29.833, -82.391 |
| Deseret Ranch | Phosphorus-Phosphates | — | Prospect | 27.946, -80.837 |
| Agglite Debris | Phosphorus-Phosphates | — | Past Producer | 27.915, -82.121 |
| Green Cove Springs | Titanium | — | Producer | 29.867, -81.708 |
| Highland Operation | Titanium | — | Past Producer | 30.054, -82.051 |
| Payne Creek | Phosphorus-Phosphates | — | Past Producer | 27.679, -81.936 |
| Fort Meade Mine - Mobil | Phosphorus-Phosphates | — | Plant | 27.766, -81.807 |
| Manson-Jenkins | Phosphorus-Phosphates | — | Prospect | 27.537, -82.047 |
| Arco-Stanaland Ranch | Phosphorus-Phosphates | — | Producer | 27.664, -82.091 |
| Pine Level Deposit | Phosphorus-Phosphates | — | Prospect | 27.250, -81.991 |
| Zolfo Springs Area Small Ownerships | Phosphorus-Phosphates | — | Prospect | 27.450, -81.778 |
| B. H. Griffin | Phosphorus-Phosphates | — | Prospect | 27.409, -81.819 |
| Horse Creek, D.E. Carlton | Phosphorus-Phosphates | — | Prospect | 27.317, -81.936 |
| Hookers Prairie Mine | Phosphorus-Phosphates | — | Past Producer | 27.774, -81.934 |
| Stuart-Griffin Tracts | Phosphorus-Phosphates | — | Occurrence | 27.925, -81.858 |
| Texaco Manatee Braddock & Taylor | Phosphorus-Phosphates | — | Prospect | 27.498, -82.083 |
| Northeast Manatee/Texaco | Phosphorus-Phosphates | — | Prospect | 27.475, -82.117 |
| Live Oak Deposit | Phosphorus-Phosphates | — | Prospect | 30.224, -83.900 |
| David C.Turner Heirs | Phosphorus-Phosphates | — | Prospect | 27.575, -82.122 |
| Hard Rock Debris | Phosphorus-Phosphates | — | Prospect | 29.001, -82.341 |
| Fridovich | Phosphorus-Phosphates | — | Prospect | 28.011, -82.021 |
| Pirkle Deposit #1 | Phosphorus-Phosphates | — | Prospect | 29.697, -82.303 |
Back to Rockhounding in Florida.
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