RockWoofBest regions by county
Ranked by the number of USGS-recorded sites, not by access or quality.
- Providence County: 23 sites; most recorded: Scheelite, Magnetite, Chalcopyrite
Top minerals
- Scheelite: 2 sites
- Magnetite: 2 sites
- Chalcopyrite: 1 sites
- Molybdenite: 1 sites
- Granite: 1 sites
Mineral cards
Copper
Mohs 2.5–3. Native copper is soft and turns green as it weathers. Mindat
3 sites
Gold
Mohs 2.5–3. Soft, heavy and bright yellow; it doesn’t tarnish. Mindat
2 sites
Magnetite
Mohs 5.5–6.5. Black and strongly magnetic. Mindat
2 sites
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
2 sites
Scheelite
Mohs 4.5–5. Tungsten mineral that glows blue-white under shortwave UV. Mindat
2 sites
Garnet
Mohs 6.5–7.5. Usually deep red, round many-faced crystals. Mindat
1 site
Silver
Mohs 2.5–3. Native silver tarnishes black. Mindat
1 site
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
Minerals most often recorded
Scheelite 2Magnetite 2Chalcopyrite 1Molybdenite 1Granite 1Counties
| County | Sites |
|---|---|
| Providence County | 23 |
| Newport County (fewer than 5 sites, no page) | 2 |
| Washington County (fewer than 5 sites, no page) | 2 |
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 USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date.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