Iron Cliff prospect (Littleshot prospect; Little Shot Mine; Velvet Mine), Littleshot Camp, Madera Canyon, Old Baldy Mining District, Santa Cruz County, Arizona, USAi
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Latitude & Longitude (WGS84):
31° 41' 45'' North , 110° 51' 45'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Arivaca Junction | 1,090 (2011) | 19.1km |
| Amado | 295 (2011) | 19.2km |
| Sonoita | 818 (2015) | 19.5km |
| Tubac | 1,191 (2011) | 19.7km |
| Patagonia | 890 (2017) | 20.1km |
Mindat Locality ID:
58587
Long-form identifier:
mindat:1:2:58587:8
GUID (UUID V4):
4acb0a25-158e-4411-8803-e84f3f769f02
‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 168, 177.
Drewes, H.D. (1971) Geologic map of the Mount Wrightson quadrangle, southeast of Tucson, Santa Cruz and Pima Counties, Arizona: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-614, 1 sheet, scale 1:48,000.
USGS Mt Wrightson Quadrangle topo map.
Yale Peabody GNIS database (NOTE: this database is derived from USGS 1:24,000 topographic map data).
MRDS database Dep. ID file #10039601, MRDS ID #M050406; and, Dep. ID #10162343, MAS ID #0040230264.
A former underground Cu-Au-Pb prospect with underground workings located in sec. 13, T20S, R14E, just north of Littleshot Camp at an elevation of 6,275 feet, 9 miles W of Mt. Wrightson, about 13 airline miles NNW of Patagonia, on National Forest land. Discovered 1915. The Littleshot Mine could be the same as the Iron Cliff; can't tell from the literature.
Mineralization involves a 5 foot (1.52 meter) wide, iron-stained fault of shear zone in granite. The zone strikes ENE and dips 75ºNNW. It contains streaks of crushed rock or gouge-like material, which on the hanging wall side carries some pyrite and chalcopyrite with a fair amount of gold. On the opposite, or east side of the creek, a tunnel on the same ledge shows much pyrite and galena with a little pyrite and some arsenopyrite on the footwall. The host rocks include the Josephine CAnyon Diorite and the Madera Canyon Granodiorite. Ore control was the shear zone.
Regional trends include tilting and broad open folds in the south and extensive faulting in the north; thrust and normal faulting, shear zones.
Workings include a short tunnel.
; INFO FROM LAND.ST :(1964)
Workings 1 PHYSICAL DIMENSIONS NOT AVAILABLE.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Arsenopyrite Formula: FeAsS |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Galena Formula: PbS |
| ⓘ Pyrite Formula: FeS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10039601 |
|---|
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
USA
- Arizona
- Santa Rita MountainsMountain Range
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