RockWoofFound alongside
Feldspar
Mohs 6–6.5. Blocky crystals with flat cleavage faces. Mindat
253 sites
Mica
Mohs 2–3. Peels into thin, flexible, shiny sheets. Mindat
209 sites
Beryl
Mohs 7.5–8. Six-sided crystals; aquamarine and emerald are beryl. Mindat
3 sites
Quartz
Mohs 7. Six-sided points; smoky quartz is NH’s state gem. Mindat
3 sites
Garnet
Mohs 6.5–7.5. Usually deep red, round many-faced crystals. Mindat
3 sites
Gold
Mohs 2.5–3. Soft, heavy and bright yellow; it doesn’t tarnish. Mindat
1 site
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
By county
Grafton County (98) · Rockingham County (95) · Cheshire County (31) · Sullivan County (13) · Merrimack County (6) · Strafford County (4) · Carroll County (3) · Coos County (2) · Belknap County (1)
Sites (first 60)
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Weeks Feldspar Quarry | Mica, Niobium (Columbium), Tantalum, Feldspar, Beryllium | Beryl, Columbite, Muscovite | Producer | 43.650, -71.016 |
| Pattuck Mica Mine | Feldspar, Niobium (Columbium), Tantalum, Mica, Beryllium | Beryl, Muscovite | Producer | 43.633, -71.833 |
| Milan Mine | Copper | Chalcopyrite, Galena, Sphalerite, Pyrite, Bornite, Chalcocite | Past Producer | 44.565, -71.254 |
| George Porter Mine | Niobium (Columbium), Tantalum, Feldspar | Columbite, Tantalite | Occurrence | 43.133, -72.333 |
| Allen Mine | Tantalum, Niobium (Columbium), Feldspar | Columbite, Tantalite | Occurrence | 43.133, -72.333 |
| Smith Mine | Niobium (Columbium), Tantalum, Feldspar | Columbite, Tantalite | Occurrence | 43.000, -70.999 |
| Welch Mine | Tantalum, Feldspar, Niobium (Columbium) | Columbite, Tantalite | Occurrence | 43.000, -71.216 |
| Blake Mine | Niobium (Columbium), Tantalum, Feldspar | Columbite, Tantalite | Occurrence | 43.000, -71.216 |
| Corson Mine | Niobium (Columbium), Tantalum, Feldspar | Columbite, Tantalite | Occurrence | 43.083, -71.116 |
| Chandler Mine | Tantalum, Feldspar, Niobium (Columbium) | Columbite, Tantalite | Occurrence | 43.000, -71.216 |
| Parker Mountain Mine | Niobium (Columbium), Tantalum, Feldspar, Mica | Muscovite | Producer | 43.300, -71.166 |
| G.F. Smith & Chandler Mills Mine | Mica | — | Prospect | 43.359, -72.252 |
| Aaron Ledge Mica Prospects | Mica | — | Prospect | 43.536, -72.019 |
| Welch Mine | Feldspar | — | Past Producer | 43.001, -71.234 |
| Colony Feldspar Mine | Feldspar | — | Past Producer | 43.160, -72.318 |
| Pegmatite No. 19 | Feldspar | — | Occurrence | 43.007, -71.221 |
| Pegmatite No. 81 | Feldspar | — | Occurrence | 43.000, -71.235 |
| Pegmatite No. 13 | Feldspar | — | Occurrence | 43.009, -71.223 |
| Nancy No. 1 Mica Mine | Mica | — | Past Producer | 43.768, -72.874 |
| Pegmatite No. 63 | Feldspar | — | Occurrence | 43.001, -71.234 |
| Pegmatite No. 35 | Feldspar | — | Occurrence | 43.004, -71.226 |
| Bailey Hill Prospect | Beryllium, Feldspar | — | Prospect | 43.787, -71.886 |
| Pegmatite No. 18 | Feldspar | — | Occurrence | 43.007, -71.220 |
| Jake Patten Mica Prospect | Feldspar | — | Prospect | 43.598, -71.850 |
| Pegmatite No. 53 | Feldspar | — | Occurrence | 43.009, -71.240 |
| Pinnacle Prospects | Beryllium, Mica, Feldspar | — | Prospect | 43.677, -71.959 |
| Pegmatite No. 60 | Feldspar | — | Occurrence | 42.999, -71.232 |
| Pegmatite No. 19 | Mica | — | Occurrence | 43.736, -71.911 |
| Monarch Mica Mine | Mica | — | Prospect | 43.646, -71.833 |
| Mica Queen Mine | Feldspar | — | Past Producer | 43.471, -71.971 |
| Howard Prospect Gilsum | Feldspar | — | Prospect | 43.087, -72.279 |
| Truman Patten Mine | Mica | — | Prospect | 43.649, -71.852 |
| Alger No. 1 Mine | Mica | — | Past Producer | 43.576, -71.995 |
| Allen Feldspar Quarry | Feldspar | — | Past Producer | 43.150, -72.307 |
| Turner Mine | Feldspar | — | Past Producer | 43.124, -72.306 |
| Kilton Mica Mine | Feldspar | — | Prospect | 43.584, -71.991 |
| Wadhams-Tucker Mica Mine | Mica | — | Prospect | 43.636, -71.829 |
| Golding Keene's Co. Mine | Feldspar, Mica | — | Past Producer | 43.071, -72.261 |
| Craylip Mica Prospect | Feldspar | — | Prospect | 43.754, -71.852 |
| Britton Feldspar Mine | Feldspar | — | Prospect | 43.098, -72.278 |
| Mcmullen Prospect | Feldspar | — | Past Producer | 43.019, -71.189 |
| Pegmatite No. 6 | Mica | — | Occurrence | 43.011, -71.228 |
| Pegmatite No. 32 | Feldspar | — | Occurrence | 43.004, -71.226 |
| Saunders Mica Mine | Mica | — | Prospect | 43.541, -72.015 |
| Columbian Gem Mine | Feldspar | — | Prospect | 43.524, -71.978 |
| Mt. Tug Prospects | Beryllium, Feldspar, Mica | — | Prospect | 43.688, -71.952 |
| White Mountain Mica Company Mine | Mica | — | Prospect | 43.892, -71.633 |
| Keyes Mica Mines, No. 3 & 4 | Mica | — | Prospect | 43.695, -71.942 |
| Mcgall Mine | Feldspar | — | Past Producer | 43.022, -71.180 |
| Bickford Pegmatite | Silica, Beryllium, Garnet, Mica, Feldspar | — | Prospect | 43.418, -71.956 |
| Blister Mine | Feldspar | — | Past Producer | 43.074, -72.272 |
| Crystal Mica Mines | Mica | — | Prospect | 43.836, -71.597 |
| Eight-Ball Mica Prospect | Mica | — | Prospect | 43.843, -71.851 |
| Kimball Hill Mica Mine | Feldspar | — | Prospect | 43.708, -71.940 |
| Pegmatite No. 80 | Feldspar | — | Occurrence | 42.999, -71.237 |
| Mills Prospect | Feldspar | — | Prospect | 43.001, -71.228 |
| Pegmatite No. 42 | Feldspar | — | Occurrence | 43.004, -71.231 |
| Demott Mica Mine | Mica | — | Prospect | 43.552, -72.004 |
| Boardman Mine | Beryllium, Mica, Feldspar | — | Past Producer | 43.602, -71.979 |
| Beryl Mountain Pegmatites | Feldspar | — | Past Producer | 43.181, -72.294 |
Back to Rockhounding in New Hampshire.
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