Hancock Mine, Greaterville, Greaterville Mining District, Pima County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Hancock Mine | Mine |
| Greaterville | - not defined - |
| Greaterville Mining District | Mining District |
| Pima County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
31° 46' 53'' North , 110° 46' 27'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Sonoita | 818 (2015) | 15.9km |
| Corona de Tucson | 5,675 (2011) | 20.4km |
| Green Valley | 21,391 (2011) | 22.3km |
| East Sahuarita | 1,622 (2006) | 23.1km |
| Sahuarita | 25,707 (2017) | 26.0km |
‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 153, 154-155.
Drewes, H.D. (1971) Geologic map of the Sahuarita quadrangle, southeast of Tucson, Pima County, Arizona: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-613, 1 sheet, scale 1:48,000.
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 121 (Table 4).
USGS Sahuarita Quadrangle topo map.
MRDS database Dep. ID file #10103744, MRDS ID #M050173; and, Dep. IF #10235060, MAS ID #0040190245.
A former small underground Pb-Zn-Ag-Cu-Au mine located in East-central sec. 14, T.19S., R.15E., 2 miles west of Greaterville, 1 mile east of the Mountain King Mine, and 37 miles SE of Tucson. Discovered and owned by W.M. Robinson in 1885.
Mineralization is an irregular, 3 foot wide quartz vein in granite that dips to the west and contains spotty, partially oxidized base metal sulfides and rich, near-surface, cerussite and chlorargyrite. The vein cuts Precambrian granodiorite. Ore concentration process was permeable fracture zones. Willow Canyon Formation (siltstone, conglomerate) is the host rock unit.
Local structures include Homoclinal; regional trends: tilting and broad open folds in the south and extensive faulting in the north. Thrust and normal faulting - fracture zones.
Workings include a 100 foot (30.48 meters) deep shaft. Worked in the late 1800's. Produced a small tonnage of high-grade Pb-Ag ore.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Cerussite Formula: PbCO3 |
| ⓘ Chlorargyrite Formula: AgCl |
| ⓘ Galena Formula: PbS |
| ⓘ Pyrite Formula: FeS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Chlorargyrite | 3.AA.15 | AgCl |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Cerussite | 5.AB.15 | PbCO3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Cerussite | PbCO3 |
| O | Oxygen | |
| O | ⓘ Cerussite | PbCO3 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| Cl | Chlorine | |
| Cl | ⓘ Chlorargyrite | AgCl |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Ag | Silver | |
| Ag | ⓘ Chlorargyrite | AgCl |
| Pb | Lead | |
| Pb | ⓘ Cerussite | PbCO3 |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10103744 |
|---|
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
- Mazatzal DomainDomain
- Southern Basin and RangeWide Rift
USA
- Arizona
- Santa Rita MountainsMountain Range
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