Magonigal Mine, Silver Bell Mining District, Silver Bell Mountains, Pima County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Magonigal Mine | Mine |
| Silver Bell Mining District | Mining District |
| Silver Bell Mountains | Mountain Range |
| Pima County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
32° 25' 32'' North , 111° 37' 35'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Avra Valley | 6,050 (2011) | 29.2km |
| Red Rock | 169 (2011) | 32.8km |
| Nelson | 259 (2011) | 33.5km |
| Picacho | 471 (2011) | 34.6km |
| Picture Rocks | 9,563 (2011) | 36.8km |
Other/historical names associated with this locality:
Gordon Mine
‡Ref.: Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 143 (Table 4).
Dockter, Roger (1976) USGS Field Examination (Magonigal Mine).
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 12 (Table 1).
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10039923, MRDS ID #M051113; and, Dep. ID #10210716, MAS ID #0040190305.
A former surface and underground Cu-Ag-Pb-Mo-Mn-V mine with surface and underground workings located in East-central sec. 34 T.11S., R.7E. (Vaca Hills 15 minute topo map), 5 miles NW of Silver Bell. Owned by Gordon.
Mineralization is spotty copper oxides, minor copper sulfides, and wulfenite, with manganese and iron oxides in a disseminated ore body, along a fault zone cutting Cretaceous sediments and andesitic volcanics. Alteration includes propylitic and skarn. An associated rock unit is granite. Apparently peripheral to the Silver Bell mineralization. Some prospects show trace of Cu oxide and specular hematite, but most are absent of mineralization.
Workings include shallow shafts and surface openings. Produced some 300 tons of ore in the mid-1950's, averaging about 2.5% Cu and 0.14 oz. Ag/T. One shaft is greater than 50 feet (15.24 meters) deep, while the other is less than 50 feet.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chalcocite Formula: Cu2S |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Hematite var. Specularite Formula: Fe2O3 |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Wulfenite Formula: Pb(MoO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcocite | 2.BA.05 | Cu2S |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | var. Specularite | 4.CB.05 | Fe2O3 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Wulfenite | 7.GA.05 | Pb(MoO4) |
| Group 9 - Silicates | |||
| ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Wulfenite | Pb(MoO4) |
| O | ⓘ Hematite var. Specularite | Fe2O3 |
| Al | Aluminium | |
| Al | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | Silicon | |
| Si | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Chalcocite | Cu2S |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Hematite var. Specularite | Fe2O3 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Chalcocite | Cu2S |
| Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Mo | Molybdenum | |
| Mo | ⓘ Wulfenite | Pb(MoO4) |
| Pb | Lead | |
| Pb | ⓘ Wulfenite | Pb(MoO4) |
Other Databases
| Link to USGS MRDS: | 10039923 |
|---|
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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