RockWoofSketch map
Woof’s favorite find
Holland Mine
We picked it because its USGS record mentions 4 gem or collectible minerals (Quartz, Garnet, Gold, Silver) and 8 of our card minerals overall. No other named site here scores as high on both counts. USGS lists it as past producer for Silver, Copper, Zinc, Lead. Minerals mentioned: Quartz, Garnet, Gold, Pyrite, Galena, Copper, Silver, Scheelite. Approx. location 31.371, -110.696. 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.
The mineral was noted here, without development.
Was producing when the record was made.
Status not recorded.
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
431 sites
Silver
Mohs 2.5–3. Native silver tarnishes black. Mindat
409 sites
Gold
Mohs 2.5–3. Soft, heavy and bright yellow; it doesn’t tarnish. Mindat
380 sites
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
117 sites
Galena
Mohs 2.5–2.75. Heavy, silvery lead ore that breaks into cubes. Mindat
70 sites
Quartz
Mohs 7. Six-sided points; smoky quartz is NH’s state gem. Mindat
54 sites
Garnet
Mohs 6.5–7.5. Usually deep red, round many-faced crystals. Mindat
8 sites
Fluorite
Mohs 4. Cubes in purple, green or yellow; many glow under UV. Mindat
7 sites
Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.
Minerals recorded here
Chalcopyrite 102Galena 67Pyrite 62Sphalerite 57Gold 42Malachite 31Chalcocite 24Silver 22Molybdenite 21Tetrahedrite 20Bornite 17Argentite 13Commodities
Copper 413Silver 397Lead 365Gold 353Zinc 213Molybdenum 55Manganese 40Uranium 20Antimony 16Iron 14Sites (first 40)
| Site | Commodity | Minerals recorded | Status | Approx. location |
|---|---|---|---|---|
| Trench and Josephine Mine Group | Zinc, Silver, Lead | Alabandite, Freibergite, Galena, Pyrite, Pyromorphite, Rhodochrosite, Sphalerite, Tetrahedrite | Producer | 31.465, -110.730 |
| Pat Alunite | Aluminum, Potassium | Alunite | Occurrence | 31.456, -110.751 |
| Three R Mine Group | Copper | Alunite, Bornite, Chalcocite, Chalcopyrite, Covellite, Malachite | Producer | 31.484, -110.765 |
| Red Mountain Mine | Aluminum, Copper | Alunite, Bornite, Chalcocite, Chalcopyrite, Enargite, Kaolinite, Molybdenite, Pyrite, Sphalerite, Tetrahedrite, Gold | Past Producer | 31.504, -110.719 |
| Morning and Evening Mine Group | Silver, Lead | Anglesite, Argentite, Copper, Pyrite | Past Producer | 31.379, -111.092 |
| Hardshell Mine | Copper, Gold, Lead, Silver, Manganese | Anglesite, Braunite, Cerargyrite, Gold, Hemimorphite, Hydrozincite, Manganite, Mimetite, Psilomelane, Pyrolusite, Pyromorphite, Smithsonite, Wulfenite | Past Producer | 31.460, -110.717 |
| White Oaks and Big Steve Mines | Lead, Silver | Anglesite, Chalcopyrite, Chrysocolla, Galena, Malachite, Marcasite, Pyrite, Pyromorphite, Uranophane | Producer | 31.373, -111.084 |
| Glove Mine Group | Silver, Zinc, Lead | Anglesite, Chalcopyrite, Covellite, Mimetite, Pyrite, Smithsonite, Sphalerite, Vanadinite, Wulfenite | Past Producer | 31.660, -110.947 |
| Columbia Mine Group | Silver, Gold, Lead | Anglesite, Chalcopyrite, Galena, Pyrite | Producer | 31.403, -110.926 |
| Bullwhacker Mine | Lead | Anglesite, Chalcopyrite, Galena, Sphalerite | Producer | 31.433, -110.703 |
| Blue Eagle Mine | Copper | Argentite, Bornite, Chalcopyrite, Galena, Pyrite, Sphalerite | Producer | 31.492, -110.757 |
| American Mine | Silver, Lead | Argentite, Cerargyrite, Chalcopyrite, Galena, Pyrite, Sphalerite, Tetrahedrite | Past Producer | 31.454, -110.723 |
| Tres De Mayo Mine Group | Silver, Lead | Argentite, Cerargyrite, Chalcopyrite, Gold, Malachite, Sphalerite, Wulfenite | Past Producer | 31.446, -110.802 |
| Meadow Valley Mine | Silver | Argentite, Cerargyrite, Chalcopyrite, Pyrite | Past Producer | 31.510, -110.585 |
| La Plata Mine | Silver, Copper | Argentite, Cerargyrite, Copper, Lead | Producer | 31.525, -110.593 |
| New York Mine | Manganese, Silver | Argentite, Cerargyrite, Galena, Gold | Past Producer | 31.527, -110.613 |
| Four Metals Mine | Copper, Silver, Gold | Argentite, Chalcocite, Chalcopyrite, Ferrimolybdite, Galena, Gold, Molybdenite, Pyrite, Sphalerite | Past Producer | 31.398, -110.738 |
| Alto Vein Swarm | Lead, Silver | Argentite, Chalcocite, Chalcopyrite, Galena, Hematite, Malachite, Molybdenite, Sphalerite, Tetrahedrite | Past Producer | 31.612, -110.862 |
| Christmas Gift Mine | Lead | Argentite, Chalcocite, Chalcopyrite, Galena, Pyrite, Pyrolusite, Tetrahedrite | Producer | 31.525, -110.718 |
| Simplot Mine | Copper, Lead, Silver, Zinc | Argentite, Chalcopyrite, Digenite, Galena, Molybdenite, Pyrite, Pyrrhotite, Sphalerite | Occurrence | 31.386, -110.699 |
| Choctaw Mine | Lead, Zinc, Silver | Argentite, Chalcopyrite, Galena, Sphalerite | Past Producer | 31.494, -111.270 |
| January and Norton Mine Group | Lead, Silver, Zinc | Argentite, Galena, Pyrite, Sphalerite | Producer | 31.473, -110.730 |
| Dixie | Barium-Barite | Barite | Occurrence | 31.599, -110.815 |
| Barite Occurence | Barium-Barite | Barite | Occurrence | 31.480, -110.723 |
| Mowry Mine | Lead, Silver | Bindheimite, Chalcopyrite, Manganite, Marcasite, Pyrite, Vanadinite, Wad, Wulfenite | Producer | 31.428, -110.704 |
| Exposed Reef Mines | Copper, Silver | Bornite, Chalcocite, Chalcopyrite, Cuprite, Galena, Pyrite, Sphalerite, Tetrahedrite | Producer | 31.495, -110.749 |
| Wise Prospect | Silver, Copper | Bornite, Chalcocite, Chalcopyrite, Cuprite, Malachite | Occurrence | 31.533, -110.949 |
| Morning Glory Mine | Copper, Lead | Bornite, Chalcocite, Chalcopyrite, Galena, Pyrite, Sphalerite | Past Producer | 31.429, -110.728 |
| American Boy Mine | Lead, Silver, Copper | Bornite, Chalcocite, Chalcopyrite, Galena, Pyrite, Sphalerite, Tetrahedrite | Past Producer | 31.625, -110.823 |
| Aztec Mine Group | Copper | Bornite, Chalcocite, Chalcopyrite, Malachite, Pyrite | Producer | 31.510, -110.750 |
| Line Boy Mine | Copper, Silver | Bornite, Chalcocite, Chalcopyrite, Molybdenite, Pyrite, Specularite | Past Producer | 31.335, -110.692 |
| Buena Vista Mine | Copper, Silver | Bornite, Chalcopyrite, Covellite, Galena, Malachite, Molybdenite, Pyrite | Past Producer | 31.381, -110.769 |
| Carrie Nation Mine | Copper | Bornite, Chalcopyrite, Galena, Malachite, Molybdenite, Pyrite, Specularite, Sphalerite | Past Producer | 31.698, -110.876 |
| Bonanza Mine | Copper, Lead, Silver, Zinc | Bornite, Chalcopyrite, Galena, Molybdenite, Pyrite, Sphalerite | Past Producer | 31.373, -110.687 |
| Paymaster Mine | Copper, Silver | Bornite, Chalcopyrite, Galena, Pyrite, Sphalerite | Producer | 31.414, -110.742 |
| Mansfield Mine Group | Lead, Copper, Silver | Bornite, Chalcopyrite, Galena, Pyrite, Sphalerite, Tetrahedrite | Producer | 31.617, -110.800 |
| Connecticut Mine | Copper, Lead, Silver | Bornite, Chalcopyrite, Malachite, Sphalerite | Producer | 31.660, -110.869 |
| Providencia Claim | Copper, Molybdenum | Bornite, Chalcopyrite, Molybdenite, Pyrite | Occurrence | 31.388, -110.765 |
| Humboldt Mine | Lead | Bornite, Chalcopyrite, Pyrite, Rhodochrosite, Sphalerite, Tetrahedrite | Producer | 31.469, -110.734 |
| Salvador Mine | Silver | Braunite, Psilomelane, Pyrolusite, Wad | Producer | 31.453, -110.715 |
Fossil collections
The Paleobiology Database lists 17 fossil collection records in Santa Cruz County. These are research records, not public dig sites.
Nearby counties
Pima County · Cochise County · Pinal County · Graham County · Greenlee County
Arizona mineral guides
- Beryl in Arizona
- Tourmaline in Arizona
- Quartz in Arizona
- Garnet in Arizona
- Gold in Arizona
- Mica in Arizona
Back to all Arizona 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