RockWoofFound alongside
Quartz
Mohs 7. Six-sided points; smoky quartz is NH’s state gem. Mindat
24 sites
Mica
Mohs 2–3. Peels into thin, flexible, shiny sheets. Mindat
14 sites
Feldspar
Mohs 6–6.5. Blocky crystals with flat cleavage faces. Mindat
11 sites
Beryl
Mohs 7.5–8. Six-sided crystals; aquamarine and emerald are beryl. Mindat
8 sites
Tourmaline
Mohs 7–7.5. Long striated crystals, often black (schorl) or green and pink (elbaite). Mindat
8 sites
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
7 sites
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
By county
Oxford County (14) · Aroostook County (3) · Hancock County (2) · Androscoggin County (1) · Washington County (1) · Knox County (1) · Sagadahoc County (1) · Somerset County (1)
Sites
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Bald Mountain | Copper, Gold, Silver, Zinc | Chalcopyrite, Sphalerite, Pyrrhotite, Arsenopyrite, Galena | Prospect | 46.735, -68.745 |
| Bennet Feldspar Quarry | Feldspar, Gemstone | Lepidolite, Beryl, Tantalite, Columbite, Feldspar, Quartz, Tourmaline | Producer | 44.291, -70.427 |
| Alder Pond | Copper, Zinc, Lead | Sphalerite, Chalcopyrite, Galena, Pyrite | Prospect | 45.336, -70.208 |
| Berry Feldspar Quarry | — | — | Past Producer | 44.071, -70.301 |
| Stearns Farm Mine | Quartz | — | Prospect | 44.274, -70.493 |
| Diamond Ledge Quarry | Quartz | — | Past Producer | 44.304, -70.649 |
| Barrett Prospect | — | — | Prospect | 44.969, -67.226 |
| Harvard Quarry | — | — | Past Producer | 44.289, -70.643 |
| Black Mountain Quarries | — | — | Past Producer | 44.586, -70.646 |
| Douglas Mine | — | — | Past Producer | 44.396, -68.627 |
| Blue Hill Jt. Venture | Copper, Zinc | — | Plant | 44.391, -68.623 |
| Newry Mines | — | — | Past Producer | 44.545, -70.721 |
| Northern Aroostook Manganese Dist. | Manganese | — | Prospect | 46.737, -68.168 |
| Harriman Prospect | Nickel | — | Prospect | 44.164, -69.241 |
| Leach Quartz Prospect | Quartz | — | Prospect | 44.601, -70.623 |
| Golding's Quarry | Garnet, Beryllium, Quartz | — | Past Producer | 43.775, -69.771 |
| Buckfield Pegmatite | — | — | Past Producer | 44.292, -70.426 |
| Beryllium Corp. Prospect | Beryllium, Fluorine-Fluorite, Mica, Quartz | — | Prospect | 44.157, -70.873 |
| Unnamed Prospect | Quartz | — | Occurrence | 44.216, -70.969 |
| Weymouth Hill Prospect | Quartz | — | Occurrence | 44.225, -70.812 |
| Southern Aroostook Manganese Dist | Manganese | — | Prospect | 46.393, -68.047 |
| Little Singepole Quarries | — | — | Past Producer | 44.223, -70.419 |
| Tamminen Quarry | Beryllium, Uranium | — | Past Producer | 44.284, -70.640 |
| Hibbs Feldspar Quarry | — | — | Past Producer | 44.214, -70.401 |
Back to Rockhounding in Maine.
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