North Silver Bell Mine, Silver Bell Mining District, Silver Bell Mountains, Pima County, Arizona, USAi
| Regional Level Types | |
|---|---|
| North Silver Bell 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° 26' 26'' North , 111° 31' 56'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Avra Valley | 6,050 (2011) | 20.3km |
| Red Rock | 169 (2011) | 24.5km |
| Nelson | 259 (2011) | 24.7km |
| Marana | 41,315 (2017) | 28.8km |
| Picture Rocks | 9,563 (2011) | 28.8km |
Mindat Locality ID:
189368
Long-form identifier:
mindat:1:2:189368:0
GUID (UUID V4):
6df2984f-98e0-4b29-8e97-781c3807b796
Ref.: Banks, N.G. (1976), Field Examination (North Silver Bell Mine).
Banks, N.G., and Dockter, R.D. (1976) Reconnaissance geologic map of the Vaca Hills quadrangle, Arizona [Koht Kohl Hill, Queens Well, Silver Bell West, and Gap Tank 7.5 min]: U.S. Geological Survey Miscellaneous Field Studies Map MF-793, 1 sheet, scale 1:62,500.
Guilbert, J.M. (1979) Society of Economic Geologists Porphyry Copper Field Symposium.
MRDS database Dep. ID file #10039895, MRDS ID #M051069.
A former small surface and underground Cu-Mo-Zn-Pb mine located in secs. 28 (and posibly 32 & 33), T11S, R8E, 1 mile NW of the Silver Bell Mine. (Arizona File Listed Sec 28, Molybdenum File Listed Secs 32 & 33). Owned by Minerals Exploration (Union Oil) and ASARCO.
Mineralization is with an irregular oval ore body elongate NW, hosted in Dacite. Approximately 1 square mile of surface outcrop of low grade copper ore, mostly of chalcocite enrichment on pyrite with some oxide and molybdenite showings. Hematite in gossan (rather than jarosite or goethite) indicates the presence of a chalcocite blanket. Alteration includes potassic, phyllic, propylitic, and variable silicification. An associated rock unit is diorite.
Local structures include abundant close fractures.
Workings include miscellaneous minor pits and shafts. Production unknown, possibly none.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| β Alunite Formula: KAl3(SO4)2(OH)6 |
| β Baryte Formula: BaSO4 |
| β Chalcocite Formula: Cu2S |
| β Chalcopyrite Formula: CuFeS2 |
| β Fluorite Formula: CaF2 |
| β 'Garnet Group' Formula: X3Z2(SiO4)3 |
| β Hematite Formula: Fe2O3 |
| β Molybdenite Formula: MoS2 |
| β Pyrite Formula: FeS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Chalcocite | 2.BA.05 | Cu2S |
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Molybdenite | 2.EA.30 | MoS2 |
| β | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| β | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Hematite | 4.CB.05 | Fe2O3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Baryte | 7.AD.35 | BaSO4 |
| β | Alunite | 7.BC.10 | KAl3(SO4)2(OH)6 |
| Unclassified | |||
| β | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Alunite | KAl3(SO4)2(OH)6 |
| O | Oxygen | |
| O | β Alunite | KAl3(SO4)2(OH)6 |
| O | β Baryte | BaSO4 |
| O | β Hematite | Fe2O3 |
| O | β Garnet Group | X3Z2(SiO4)3 |
| F | Fluorine | |
| F | β Fluorite | CaF2 |
| Al | Aluminium | |
| Al | β Alunite | KAl3(SO4)2(OH)6 |
| Si | Silicon | |
| Si | β Garnet Group | X3Z2(SiO4)3 |
| S | Sulfur | |
| S | β Alunite | KAl3(SO4)2(OH)6 |
| S | β Baryte | BaSO4 |
| S | β Chalcopyrite | CuFeS2 |
| S | β Chalcocite | Cu2S |
| S | β Molybdenite | MoS2 |
| S | β Pyrite | FeS2 |
| K | Potassium | |
| K | β Alunite | KAl3(SO4)2(OH)6 |
| Ca | Calcium | |
| Ca | β Fluorite | CaF2 |
| Fe | Iron | |
| Fe | β Chalcopyrite | CuFeS2 |
| Fe | β Hematite | Fe2O3 |
| Fe | β Pyrite | FeS2 |
| Cu | Copper | |
| Cu | β Chalcopyrite | CuFeS2 |
| Cu | β Chalcocite | Cu2S |
| Mo | Molybdenum | |
| Mo | β Molybdenite | MoS2 |
| Ba | Barium | |
| Ba | β Baryte | BaSO4 |
Other Databases
| Link to USGS MRDS: | 10039895 |
|---|
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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