RockWoofSketch map
Woof’s favorite find
Benavides Mine
We picked it because its USGS record mentions 1 of the minerals on our cards and 1 of our card minerals overall. No other named site here scores as high on both counts. USGS lists it as past producer for Uranium. Minerals mentioned: Pyrite. Approx. location 27.425, -98.784. USGS record.
Ask first: a USGS record doesn’t mean you can visit. Find out who owns the land and get permission before collecting.
Field cards: what kind of sites?
Was producing when the record was made.
Produced ore or material at some point in the past.
The mineral was noted here, without development.
Status terms come from USGS MRDS records.
Mineral cards
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
1 site
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
Minerals recorded here
Barite 1Halite 1Commodities
Uranium 6Barium-Barite 1Halite 1Antimony 1Sites
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Galvan Ranch Barite | Barium-Barite | Barite | Producer | 28.056, -99.670 |
| Moca Salt Dome | Halite | Halite | Occurrence | 27.834, -98.678 |
| Benavides Mine | Uranium | — | Past Producer | 27.425, -98.784 |
| Bruni Mine | Uranium | — | Past Producer | 27.459, -98.842 |
| O'Hern Mine | Uranium | — | Past Producer | 27.397, -98.809 |
| West Cole Mine | Uranium | — | Producer | 27.509, -98.854 |
| Nl Industries Inc | Antimony | — | Producer | 27.521, -99.523 |
| Wyoming Mineral Corp Uranium Mine | Uranium | — | Producer | 27.510, -98.854 |
| Mobil Oil Company U Leach Plant | Uranium | — | Producer | 27.397, -98.809 |
Fossil collections
The Paleobiology Database lists 16 fossil collection records in Webb County. These are research records, not public dig sites.
Nearby counties
Duval County · Jim Hogg County · McMullen County · Live Oak County · Dimmit County
Texas mineral guides
Back to all Texas counties.
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 USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date.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