RockWoofFound alongside
Silver
Mohs 2.5–3. Native silver tarnishes black. Mindat
32 sites
Copper
Mohs 2.5–3. Native copper is soft and turns green as it weathers. Mindat
11 sites
Gold
Mohs 2.5–3. Soft, heavy and bright yellow; it doesn’t tarnish. Mindat
6 sites
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
5 sites
Mica
Mohs 2–3. Peels into thin, flexible, shiny sheets. Mindat
3 sites
Quartz
Mohs 7. Six-sided points; smoky quartz is NH’s state gem. Mindat
1 site
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
By county
Grafton County (12) · Carroll County (6) · Coos County (5) · Merrimack County (3) · Rockingham County (2) · Sullivan County (2) · Belknap County (1) · Cheshire County (1)
Sites
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Milan Mine | Copper | Chalcopyrite, Galena, Sphalerite, Pyrite, Bornite, Chalcocite | Past Producer | 44.565, -71.254 |
| Reservoir Hill Mine | Lead, Silver | — | Past Producer | 43.643, -72.239 |
| Parade Road Mine | Zinc, Lead | — | Past Producer | 43.611, -71.504 |
| New Market Ag Mine | Lead | — | Past Producer | 43.083, -70.937 |
| Silverdale Mine | Lead, Zinc | — | Past Producer | 43.279, -71.341 |
| Mineral Hill Deposit | Lead, Zinc | — | Past Producer | 43.675, -71.008 |
| Silver Lake Mines | Lead, Zinc | — | Past Producer | 43.854, -71.154 |
| N. Wookstock Mine Horner'sS Farm | Lead, Zinc | — | Past Producer | 43.992, -71.688 |
| Ore Hill Mine Warren Mine | Lead | — | Past Producer | 43.942, -71.933 |
| Stevens Mine/Lang Mine | Copper | — | Past Producer | 44.221, -72.002 |
| Paddock Lead Mine | Lead | — | Past Producer | 44.247, -72.013 |
| Moscot Pb Mine | Lead, Zinc | — | Past Producer | 44.400, -71.177 |
| Surry Mountain Mine | Lead | — | Past Producer | 43.042, -72.320 |
| Ney Prospect | Copper | — | Past Producer | 43.419, -71.803 |
| Milan Mine | — | — | Past Producer | 44.567, -71.249 |
| Lamb Mine | Silver, Gold, Mica | — | Prospect | 43.518, -72.009 |
| Mascot Lead Zinc Mine | — | — | Past Producer | 44.401, -71.178 |
| Silver Lake Mine | — | — | Past Producer | 43.854, -71.154 |
| Mineral Hill Deposit | — | — | Prospect | 43.675, -71.008 |
| Silverdale Mine | — | — | Prospect | 43.279, -71.341 |
| Madison Mine | Lead | — | Past Producer | 43.900, -71.162 |
| Ore Hill Zinc-Lead Mine. | — | — | Past Producer | 43.938, -71.948 |
| Newmarket Mine | Lead | — | Past Producer | 43.071, -70.957 |
| Paddock Mine | Lead | — | Past Producer | 44.245, -72.008 |
| Huntoon Mine | Lead | — | Past Producer | 43.987, -71.685 |
| Forsyth Mine | — | — | Past Producer | 44.203, -72.029 |
| Bank, Burke, and Hoyt Mines | — | — | Prospect | 43.892, -71.158 |
| Woodstock Silver Mine | Lead, Zinc, Silver | — | Past Producer | 43.999, -71.685 |
| North Woodstock Mine | — | — | Past Producer | 43.992, -71.688 |
| Stevens Prospect | — | — | Unknown | 44.401, -71.146 |
| Prospect Hill Mine | Silver, Gold, Copper | — | Past Producer | 43.807, -72.238 |
| Reservoir Hill Mine | Lead | — | Past Producer | 43.643, -72.252 |
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