Donaldson Mine (Donaldson prospect), Wellton, 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° 34' 4'' North , 114° 4' 56'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Wellton | 2,936 (2017) | 13.2km |
| Tacna | 602 (2011) | 18.8km |
| Fortuna Foothills | 26,265 (2011) | 32.4km |
| Buckshot | 153 (2017) | 42.1km |
| El Prado Estates | 504 (2017) | 43.9km |
Mindat Locality ID:
47156
Long-form identifier:
mindat:1:2:47156:6
GUID (UUID V4):
407ec9ee-0979-4c4a-9a7c-695674fe2bbb
A Cu prospect with underground workings located in sec. 11, T10S, R18W, about 1¾ miles SE of the Poorman prospect, on federal land.
Mineralization is rather sheared & schistose gneiss that dips generally eastward. A prominent quartz vein up to 15 feet thick near aplitic dikes, with irregular strike and dip, cuts across a small saddle. Vein quartz is white, somewhat fractured & marked by iron oxide bands. Vein walls show abundant sericite, minor chlorite and sparse copper stain. The mineralization is hosted in Precambrian gneiss that was re-metamorphosed in the Mesozoic.
The property has been developed by several short tunnels. No production record.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ 'Chlorite Group' Description: Occurs in vein walls. References: |
| ⓘ 'Copper Stain' References: |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Description: Occurs in vein walls. References: |
| ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 Description: Occurs in vein walls. References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Muscovite var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | 9.EC.15 | KAl2(AlSi3O10)(OH)2 | |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Copper Stain' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| K | Potassium | |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
Other Databases
| Link to USGS MRDS: | 10027222 |
|---|
Other Regions, Features and Areas containing this locality
North America
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
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References
