Black Eagle Mine, Hardshell Gulch, Harshaw, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Black Eagle Mine | Mine |
| Hardshell Gulch | Gulch |
| Harshaw | - not defined - |
| Harshaw Mining District | Mining District |
| Patagonia Mountains | Mountain Range |
| Santa Cruz County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
31° 27' 3'' North , 110° 42' 56'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Patagonia | 890 (2017) | 10.6km |
| Kino Springs | 136 (2011) | 13.3km |
| Beyerville | 177 (2011) | 16.9km |
| Francisco Miguel Cárdenas Valdez (Mascareñas) | 541 (2014) | 21.0km |
| Nogales | 20,252 (2017) | 24.1km |
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 | 41km |
Mindat Locality ID:
33872
Long-form identifier:
mindat:1:2:33872:0
GUID (UUID V4):
13b32d56-f19d-4885-8c54-36d833b40f75
A former small surface and underground Mn-Ag-Pb-Cu-Au-Zn mine located on 3 unpatented claims in the South-central sec. 4, T.23S., R.16E. (protracted), 2 miles by road SSW of Harshaw. These claims adjoin the Bender Mine claims on the North and West. Located on the NE slope of American Peak, along the upper end of Hardshell Gulch. Discovered 1875. Produced 1918-1930. Owned at times, or in part, by Kempton & O'Neill; Pierce & Gardner; McCutchen; Hogan; Scheler; Alvarez; Soto; and J.M. Layman. Owned by Grover Marsteller.
Mineralization is irregular, discontinuous, lenticular bodies along a NE-trending fracture zone. The mineralized zone is exposed 400 feet or more along strike and contains 3 disconnected ore shoots that have yielded past production. The main ore shoot is exposed on surface a distance of 100 feet. Argentiferous manganese oxides and sulfide, silver halides, and minor lead, copper, and gold in fault breccia in Jurassic-Triassic rhyolite and Paleozoic limestone (Concha Limestone; Scherrer Formation). Below about 100 feet higher grade ore bodies are more widely separated and the ore shoots decrease in size.
Local structures include the fracture zone that roughly parallels bedding planes of silicified limestone. Silicic lavas and flow breccias with subordinate silicic tuffs and smaller bodies of limestone conglomerate.
Tectonic elements include the American Mine Fault Block, with upthrow to the NE.
Workings include an adit and inclined shaft. Developments included an adit and inclined shaft 180 feet deep. The bulk of the ore was mined in open stopes in the upper 100 feet of workings. Some ore was mined about 200 feet west of the shaft in inclined workings and stopes 60 feet long (parallelling strike) and 30 feet wide (along dip). The mineralized zone, 200 feet NE of the shaft, was explored by several shallow surface cuts and an inclined adit about 60 feet long. The claims were not extensively worked until World War I. It produced sporadically from the early 1900's to 1940. Production was some 4,900 tons of manganiferous ore averaging about 22 oz. Ag/T with minor lead, copper and gold.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Pyrolusite Formula: Mn4+O2 References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Pyrolusite | Mn4+O2 |
| Mn | Manganese | |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
Other Databases
| Link to USGS MRDS: | 10109891 |
|---|
Other Regions, Features and Areas containing this locality
Mexico
- Sierra Madre OccidentalMountain Range
North America
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mazatzal DomainDomain
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References
