RockWoofSketch map
Woof’s favorite find
Coburn Prospect
We picked it because its USGS record mentions 1 of the minerals on our cards and 1 of our card minerals overall. That ties with 1 other site(s), so we broke the tie by mine status (past producers first), then USGS record quality, then name. USGS lists it as prospect for Mica. Minerals mentioned: Mica. Approx. location 35.707, -78.672. 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?
Produced ore or material at some point in the past.
Explored or test-dug, with no recorded production.
Status terms come from USGS MRDS records.
Mineral cards
Mica
Mohs 2–3. Peels into thin, flexible, shiny sheets. Mindat
2 sites
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
Minerals recorded here
No individual minerals are listed in these records.
Commodities
Granite 4Mica 2Manganese 1Chromium 1Sites
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Raleigh Quarry | Granite | — | Past Producer | 35.929, -78.548 |
| Crabtree Quarry | Granite | — | Past Producer | 35.847, -78.716 |
| Knightdale Quarry | Granite | — | Past Producer | 35.801, -78.507 |
| Garner Quarry | Granite | — | Past Producer | 35.705, -78.578 |
| Avon Privett | Manganese | — | Past Producer | 35.825, -78.261 |
| Wakefield Prospect | Mica | — | Prospect | 35.968, -78.561 |
| Coburn Prospect | Mica | — | Prospect | 35.707, -78.672 |
| Avon Privette Property | — | — | Past Producer | 35.824, -78.256 |
| Adam Mountain Prospects | Chromium | — | Prospect | 35.949, -78.648 |
Nearby counties
Johnston County · Wilson County · Granville County · Franklin County · Orange County
North Carolina mineral guides
- Beryl in North Carolina
- Tourmaline in North Carolina
- Quartz in North Carolina
- Garnet in North Carolina
- Gold in North Carolina
- Mica in North Carolina
Back to all North Carolina 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