Plumed Knight Mine group, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Plumed Knight Mine group | - not defined - |
| Pima Mining District | Mining District |
| Sierrita Mountains | Mountain Range |
| Pima County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
31° 59' 6'' North , 111° 5' 3'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Sahuarita | 25,707 (2017) | 12.5km |
| East Sahuarita | 1,622 (2006) | 15.4km |
| Summit | 5,372 (2011) | 15.5km |
| Valencia West | 9,355 (2011) | 16.6km |
| Green Valley | 21,391 (2011) | 16.9km |
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 |
|---|---|---|
| Old Pueblo Lapidary Club | Tucson, Arizona | 30km |
| Tucson Gem and Mineral Society | Tucson, Arizona | 30km |
‡Ref.: Ransome, F.L. (1922) Ore deposits of the Sierrita Mountains, Pima County, Arizona, in Contributions to Economic Geology (Short Papers and Preliminary Reports), 1921 - Part I.--Metals and Nonmetals except Fuels: U.S. Geological Survey Bulletin 725: 419, 421.
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 137 (Table 4).
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 13 (Table 1).
USGS Twin Buttes Quadrangle topo map.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10039576, MRDS ID #M050360; and, Dep. ID #10186608, MAS ID #0040190363.
A former small underground Cu-Ag-Zn-Pb-Au mine located in the NW ¼ sec. 2, T.17S., R.12E. (Twin Buttes 15 minute topo map), 6 miles N of Twin Buttes. First produced 1907 and closed 1919. Owned at times, or in part, by the Mineral Hill Consolidated Copper Co.; Chilson; the Pioneer Smelting Co.; Copper Star Mining Co.; and the Plumed Knight Leasing Co. Operated by H. Wheaton and R. Nicolai of Tucson (1943).
Mineralization is largely copper carbonates and oxides in irregular replacement lenses along fissured bedding planes in Paleozoic limestone. Weaker sulfides deposits in depth. Ore concentration was secondary enrichment through oxidation. Most Cu produced above the 150 foot level. Depth to bottom of the ore body is 106.68 meters.
Workings include shaft operations to a depth of 106.68 meters. Worked sporadically from 1907 through 1919; and in 1947 and 1956 (without producing). Produced some 20,000 tons of ore averaging about 3.5% Cu, 1 oz. Ag/T, 0.4% Zn, 0.2% Pb and minor Au.
List of minerals for each chemical element
Other Databases
| Link to USGS MRDS: | 10039576 |
|---|
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
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