Top minerals
Mineral cards
Gold
Mohs 2.5–3. Soft, heavy and bright yellow; it doesn’t tarnish. 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
Counties
| County | Sites |
|---|---|
| Douglas County (fewer than 5 sites, no page) | 2 |
| Hall County (fewer than 5 sites, no page) | 1 |
| Harlan County (fewer than 5 sites, no page) | 1 |
| Cass County (fewer than 5 sites, no page) | 1 |
| Johnson County (fewer than 5 sites, no page) | 1 |
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 USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date.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