RockWoofSketch map
Woof’s favorite find
Fluorine Vein Properties
We picked it because its USGS record mentions 3 gem or collectible minerals (Quartz, Agate, Fluorite) and 5 of our card minerals overall. That ties with 2 other site(s), so we broke the tie by mine status (past producers first), then USGS record quality, then name. USGS lists it as past producer for Fluorine-Fluorite. Minerals mentioned: Quartz, Feldspar, Agate, Pyrite, Fluorite. Approx. location 40.939, -106.244. 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?
The mineral was noted here, without development.
Produced ore or material at some point in the past.
Status not recorded.
Explored or test-dug, with no recorded production.
Was producing when the record was made.
A processing plant site.
Status terms come from USGS MRDS records.
Mineral cards
Copper
Mohs 2.5–3. Native copper is soft and turns green as it weathers. Mindat
24 sites
Fluorite
Mohs 4. Cubes in purple, green or yellow; many glow under UV. Mindat
15 sites
Silver
Mohs 2.5–3. Native silver tarnishes black. Mindat
15 sites
Gold
Mohs 2.5–3. Soft, heavy and bright yellow; it doesn’t tarnish. Mindat
10 sites
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
8 sites
Quartz
Mohs 7. Six-sided points; smoky quartz is NH’s state gem. Mindat
5 sites
Agate
Mohs 6.5–7. Banded, translucent chalcedony. Mindat
3 sites
Feldspar
Mohs 6–6.5. Blocky crystals with flat cleavage faces. Mindat
2 sites
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
Minerals recorded here
Chalcopyrite 5Bornite 5Chalcocite 4Copper 3Gold 2Vermiculite 2Fluorite 1Ilsemannite 1Molybdenite 1Malachite 1Chrysocolla 1Silver 1Commodities
Copper 21Fluorine-Fluorite 13Silver 10Uranium 6Manganese 4Gold 4Vermiculite 4Molybdenum 1Lead 1Zinc 1Sites (first 40)
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Gold King Claims | Copper | Bornite, Chalcocite, Chalcopyrite | Occurrence | 40.959, -106.571 |
| Zirkel Mine, 17 Claims | Copper | Bornite, Chalcocite, Chalcopyrite | Occurrence | 40.958, -106.576 |
| Swede Group | Copper | Bornite, Chalcocite, Chalcopyrite | Occurrence | 40.951, -106.545 |
| Wolverine | Copper | Bornite, Chalcocite, Chalcopyrite | Producer | 40.955, -106.579 |
| Kings Canyon | Copper | Chalcopyrite, Molybdenite, Malachite, Chrysocolla, Bornite | Past Producer | 40.927, -106.203 |
| Sierra Madre Shaft | Copper | Copper | Occurrence | 41.000, -106.548 |
| Lizzy & Tully Claims | Copper | Copper | Occurrence | 40.998, -106.556 |
| Orifena, Gaslight, Empire, Pennsylvania | Copper, Silver | Copper, Silver | Occurrence | 40.402, -105.980 |
| Fluorspar | Molybdenum | Fluorite, Ilsemannite | Occurrence | 40.929, -106.277 |
| Mitchell Placer | Gold | Gold | Occurrence | 40.913, -106.459 |
| Placer Draw Placers | Gold | Gold | Occurrence | 40.891, -106.460 |
| Rabbit Ears, Twin Ears | Manganese | Manganite, Psilomelane, Wad | Occurrence | 40.407, -106.625 |
| Quaintance, Riggs | Vermiculite | Vermiculite | Occurrence | 40.966, -106.360 |
| Riggs Deposit | Vermiculite | Vermiculite | Occurrence | 40.978, -106.354 |
| Fred Brands Ranch | Uranium | — | Occurrence | 40.768, -106.501 |
| Hankins & Follett Prospects | Fluorine-Fluorite | — | Occurrence | 40.922, -106.246 |
| Simmons | Uranium | — | Occurrence | 40.983, -106.434 |
| Spring #1 | Uranium | — | Occurrence | 40.768, -106.481 |
| Gold King Shaft | Copper | — | Occurrence | 40.959, -106.571 |
| Orifeno | Silver | — | Past Producer | 40.401, -105.979 |
| Mitchell Placer | Gold | — | Unknown | 40.917, -106.453 |
| Whale Pit (unveriifable) | Fluorine-Fluorite | — | Past Producer | 40.916, -106.307 |
| Gaslight | Silver | — | Occurrence | 40.396, -105.979 |
| Fred Brands Ranch | Uranium | — | Occurrence | 40.767, -106.488 |
| Caprock deposit | Lead, Zinc | — | Prospect | 40.973, -106.482 |
| Quaintance | Vermiculite | — | Past Producer | 40.967, -106.360 |
| Bear Creek | Copper | — | Occurrence | 40.761, -106.599 |
| Lizzy & Tully Claims | Copper | — | Occurrence | 40.998, -106.556 |
| Hi Ho | Silver | — | Occurrence | 40.381, -105.996 |
| Sierra Madre Shaft | Copper | — | Unknown | 41.000, -106.548 |
| Swede Group | Copper | — | Occurrence | 40.951, -106.545 |
| Camp Creek Claims | Fluorine-Fluorite | — | Past Producer | 40.952, -106.260 |
| Wolverine Mine | Copper | — | Past Producer | 40.955, -106.579 |
| Jack Park | Silver | — | Occurrence | 40.384, -105.972 |
| Spring #1 | Uranium | — | Occurrence | 40.767, -106.482 |
| Silver King | Silver | — | Occurrence | 40.388, -105.998 |
| Forney Deposit | Vermiculite | — | Occurrence | 40.979, -106.350 |
| Black Bunny | Manganese | — | Past Producer | 40.416, -106.615 |
| Beta Company Mine | Fluorine-Fluorite | — | Past Producer | 40.691, -106.612 |
| Endomile | Silver | — | Past Producer | 40.399, -105.968 |
Fossil collections
The Paleobiology Database lists 5 fossil collection records in Jackson County. These are research records, not public dig sites.
Nearby counties
Routt County · Larimer County · Grand County · Moffat County · Boulder County
Colorado mineral guides
- Beryl in Colorado
- Tourmaline in Colorado
- Quartz in Colorado
- Garnet in Colorado
- Gold in Colorado
- Mica in Colorado
Back to all Colorado 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