Draghi Mine (Draghi prospect; Welton Hills Mine), Barry M. Goldwater Air Force Range, La Posa Mining District (Wellton Mining District; Wellton Hills Mining District), Wellton Hills-Copper Mountains, Yuma County, Arizona, USAi
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Latitude & Longitude (WGS84):
32° 31' 54'' North , 114° 3' 41'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Wellton | 2,936 (2017) | 17.6km |
| Tacna | 602 (2011) | 21.0km |
| Fortuna Foothills | 26,265 (2011) | 35.7km |
| Buckshot | 153 (2017) | 45.8km |
| El Prado Estates | 504 (2017) | 47.2km |
A former Au-Ag-Cu mine located in the NE¼ sec. 20, T10S, R18W (Wellton Hills 7.5 minute topo map), 1 mile from the SW end of the Wellton Hills. Owned at times, or in part, by Draghi; and, Frazier.
Mineralization is spotty gold with silver and minor oxidized copper mineralization in an irregular, lensing quartz vein, with iron staining, in a strong fault zone of breccia and gouge cutting banded Mesozoic gneiss. Narrow aplite dikes in vicinity. The ore zone is 0.61 meters wide, striking N35W, and dipping 40NE.
Fine-grained, banded, biotite gneiss strikes NW and dips 40º SW, and is cut by a few narrow aplitic dikes. A prominent fault zone, marked by a maximum of about 8 feet of breccia and gouge, strikes N.35ºW. and dips 10º to 40ºNE, and contains an irregular quartz vein.
Workings include 2 tunnels, the upper of which is 65 feet (19.81 meters) long. This mine was worked sporadically over many years. Major production occurred in the mid-1930's. About 365 tons of ore were produced averaging about 0.54 oz. Au/T and 0.2 oz. Ag/T.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 Description: Occurs as bunches intermingled with cherty hematite. |
| ⓘ Hematite Formula: Fe2O3 Description: Cherty material with chrysocolla bunches. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| Group 9 - Silicates | |||
| ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | Oxygen | |
| O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | ⓘ Hematite | Fe2O3 |
| Al | Aluminium | |
| Al | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | Silicon | |
| Si | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Fe | Iron | |
| Fe | ⓘ Hematite | Fe2O3 |
| Cu | Copper | |
| Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Other Databases
| Link to USGS MRDS: | 10027223 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
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