Mica, Feldspar Mines in New Hampshire
3Total Sites
0Active
Mica, Feldspar Mining in New Hampshire
New Hampshire has 3 mica, feldspar-related mine and mineral deposit locations recorded in federal databases. None are currently listed as active, but historical records document past production and geological occurrences. Data comes from the USGS Mineral Resources Data System and MSHA Mine Safety and Health Administration records.
By County
| County | Sites |
|---|---|
| Cheshire County | 1 |
| Grafton County | 1 |
| Merrimack County | 1 |
Mica, Feldspar Mines
| Mine | County | Type | Status |
|---|---|---|---|
| Big Mine | Cheshire | Surface-Underground | Past Producer |
| McDonnell Mine | Grafton | Surface | Past Producer |
| W.e. Briggs Property | Merrimack | Prospect |
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