Double Standard Mine (Dudley-Standard Mine), Duquesne-Washington Camp, Patagonia Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USAi
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Latitude & Longitude (WGS84):
31° 22' 30'' North , 110° 42' 16'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Kino Springs | 136 (2011) | 10.1km |
| Francisco Miguel Cárdenas Valdez (Mascareñas) | 541 (2014) | 14.0km |
| Beyerville | 177 (2011) | 16.6km |
| Santa Cruz | 1,038 (2018) | 18.8km |
| Patagonia | 890 (2017) | 18.9km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Huachuca Mineral and Gem Club | Sierra Vista, Arizona | 43km |
A former small surface and underground Zn-Cu-Pb-Ag-Au mine located in the North of center (NE¼) sec. 3, T24S, R16E, W of Washington Gulch, Duquesne, on National Forest land. Produced 1900-1951. Owned at times, or in part, by the Duquesne Mining & Reduction Co.; Byrd; and, Nash Mines.
Mineralization is partly oxidized sulfides, disseminated, and in bunches, in two parallel zones in pyrometasomatized Permian Naco Group limestone along strong fault zones and close to Laramide granodiorite.
Workings include shaft, tunnel, and open cut operations. Mined intermittently from the early 1900's through 1951. Produced some 300-400 tons of ore averaging about 6% Zn, 3% Cu, 2% Pb, 3 oz. Ag/T and minor Au.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Arsenic Formula: As Description: Reniform masses to over 50 pounds attached to walls of a pocket, in metamorphosed, dolomitic limestones; associated with the contacts between limestone and granite and between limestone and granite porphyry. References: |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Galena Formula: PbS |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Arsenic | 1.CA.05 | As |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Arsenic | As |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10026784 |
|---|
Other Regions, Features and Areas containing this locality
Mexico
- Sierra Madre OccidentalMountain Range
North AmericaContinent
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
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