RockWoofFound alongside
Copper
Mohs 2.5–3. Native copper is soft and turns green as it weathers. Mindat
61 sites
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
11 sites
Silver
Mohs 2.5–3. Native silver tarnishes black. Mindat
10 sites
Magnetite
Mohs 5.5–6.5. Black and strongly magnetic. Mindat
7 sites
Galena
Mohs 2.5–2.75. Heavy, silvery lead ore that breaks into cubes. Mindat
7 sites
Gold
Mohs 2.5–3. Soft, heavy and bright yellow; it doesn’t tarnish. Mindat
6 sites
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
By county
Adams County (15) · Montgomery County (9) · Chester County (8) · Berks County (4) · Northampton County (4) · Lancaster County (3) · Lebanon County (3) · Bucks County (3) · Franklin County (2) · Cumberland County (1) · Bradford County (1) · Carbon County (1) · York County (1) · Centre County (1) · Lawrence County (1) · Philadelphia County (1) · Lehigh County (1) · Wayne County (1) · Perry County (1)
Sites (first 60)
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Lancaster County | Iridium, Lead, Copper, Platinum, Gold, Silver | Chalcopyrite, Galena, Ilmenite | Occurrence | 39.979, -76.185 |
| Gap Nickel Mine | Nickel | Chalcopyrite, Pentlandite, Pyrite | Past Producer | 39.956, -76.083 |
| French Creek Mines | Iron | Magnetite | Past Producer | 40.188, -75.733 |
| Cornwall Mine | Iron | Magnetite | Past Producer | 40.269, -76.403 |
| Bender and Vicinity | Iron | Magnetite | Past Producer | 40.102, -77.044 |
| Grace Iron-Colbalt Minemorgantown/Jones & Kinney Mine/Bylers Mine | Iron | Magnetite | Past Producer | 40.171, -75.879 |
| Cornwall Mine | Iron, Cobalt | Magnetite, Pyrite, Chalcopyrite | Past Producer | 40.269, -76.403 |
| Grace Mine | Cobalt, Iron | Magnetite, Pyrite, Chalcopyrite, Covellite, Digenite | Past Producer | 40.172, -75.882 |
| Wheatley, Chester, Phoenixville | Molybdenum, Zinc, Copper, Lead | Wulfenite | Occurrence | 40.100, -75.516 |
| Unnamed Pge Occurrence | Copper, Platinum, Palladium, Nickel, Thorium, Gold, Tellurium | — | Occurrence | 40.197, -76.865 |
| Leithsville | Copper | — | Past Producer | 40.554, -75.336 |
| Buckmanville Mine/Solebury Mine | Copper | — | Past Producer | 40.316, -74.986 |
| Young's Mine | Copper | — | Past Producer | 40.319, -75.476 |
| Old Perkiomen Mine | Copper | — | Past Producer | 40.268, -75.473 |
| Wheatley Mine &3 Additional Pb-Zn Mines and the Morris Cu Mine | Lead, Zinc | — | Past Producer | 40.107, -75.508 |
| Perkiomen/Wetherill/Ecton Mines | Copper, Lead | — | Past Producer | 40.139, -75.444 |
| Virgin Mine/Reed Hill/Bingham/Eagle Metallic Mines | Copper | — | Past Producer | 39.758, -77.465 |
| Snively Musselman/Russel Mines | Copper | — | Past Producer | 39.813, -77.422 |
| Carpenter Mine | Uranium, Copper | — | Past Producer | 41.600, -76.450 |
| Penn Haven Jct | Copper, Lead, Uranium | — | Occurrence | 40.942, -75.749 |
| Pennsylvania Copper Co. Mine | Copper | — | Past Producer | 40.267, -75.602 |
| Unnamed Copper Prospect | Copper | — | Prospect | 39.753, -77.395 |
| Bowmans Hill Mine | Copper | — | Past Producer | 40.325, -74.941 |
| Snively Prospect | Copper | — | Prospect | 39.806, -77.428 |
| Unnamed Copper Prospect | Copper | — | Prospect | 39.889, -77.159 |
| (Facility) Ontelaunee Smelter--Reading, Pa. | Copper | — | Plant | 40.417, -75.950 |
| Unnamed Copper Prospect | Copper | — | Prospect | 40.540, -75.327 |
| Camp Ritchie | — | — | Prospect | 39.736, -77.415 |
| Eagle Prospect | Copper | — | Prospect | 39.741, -77.454 |
| Shannonville Mine | Copper | — | Past Producer | 40.126, -75.428 |
| Gap Nickel Mine | — | — | Past Producer | 39.957, -76.086 |
| New Galena Deposit | Lead | — | Past Producer | 40.317, -75.094 |
| Russell Prospect | Copper | — | Prospect | 39.790, -77.435 |
| Culp Hill Prospect | Copper | — | Prospect | 39.796, -77.433 |
| Unnamed Copper Prospect | Copper | — | Prospect | 39.920, -77.169 |
| Bigham Prospect | Copper | — | Prospect | 39.826, -77.428 |
| Grace Concentrator | — | — | Past Producer | 40.171, -75.879 |
| Chester County Mine | — | — | Past Producer | 40.106, -75.521 |
| Ecton Mine | — | — | Past Producer | 40.129, -75.454 |
| Unnamed Copper Prospect | Copper | — | Prospect | 39.762, -77.392 |
| Wheatley Mine | — | — | Past Producer | 40.106, -75.517 |
| Miles Gap Occurrence No. 2 | Iron | — | Occurrence | 40.933, -77.771 |
| (Facility) Metcoa Smelter & Ref.--New Castle | Nickel | — | Plant | 41.114, -80.432 |
| Whim Shaft | Lead | — | Past Producer | 40.131, -75.439 |
| Bingham Prospect | Copper | — | Prospect | 39.766, -77.448 |
| Headlight Prospect | Copper | — | Prospect | 39.749, -77.459 |
| Franklin Smelting & Refining | Copper | — | Producer | 39.953, -75.164 |
| Phoenix Mine | — | — | Past Producer | 40.101, -75.520 |
| Coatsville Prospect | Iron | — | Past Producer | 39.994, -75.849 |
| Ironton Mines | — | — | Past Producer | 40.671, -75.564 |
| Blue Mountain Pines Occurrence | Copper | — | Occurrence | 40.902, -75.243 |
| Perkiomen Mine | — | — | Past Producer | 40.138, -75.441 |
| Brookdale Mine | — | — | Past Producer | 40.103, -75.520 |
| Virgin Copper Mine | — | — | Prospect | 39.757, -77.459 |
| Cornwall Mine and Pellet Plant | — | — | Past Producer | 40.269, -76.403 |
| Baker Or Wood Farm | — | — | Prospect | 41.707, -75.162 |
| Resinger Property | — | — | Prospect | 40.452, -77.393 |
| Reed Hill Prospect | Copper | — | Prospect | 39.773, -77.442 |
| Wetherwill Mine | — | — | Past Producer | 40.129, -75.440 |
| Unnamed Copper Prospect | Copper | — | Prospect | 40.541, -75.338 |
Back to Rockhounding in Pennsylvania.
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