Gold Hill Mine (MacGregor Mine; Coughanour Mine; Clay Mine), Mount Benedict, Nogales Mining District (Gold Hill Mining District), Santa Cruz County, Arizona, USAi
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Latitude & Longitude (WGS84):
31° 23' 54'' North , 110° 55' 36'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Beyerville | 177 (2011) | 4.7km |
| Nogales | 20,252 (2017) | 6.5km |
| Rio Rico | 18,962 (2011) | 9.4km |
| Nogales | 212,533 (2018) | 10.1km |
| Kino Springs | 136 (2011) | 11.7km |
‡Ref.: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 61 (Table 4).
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10026805, MRDS ID #M000351; and, Dep. ID #10186236, MAS ID #0040230055.
A former small surface and underground Au-Pb-Ag-Cu mine located in East-central sec. 29, T.23S., R.14E, 6 miles N of Nogales, on private land. Produced 1855-1945. Owned at times, or in part, by MacGregor; Clay & Coughanour; Wilson; Anders & Demulling; and, Cheek.
Mineralization is narrow, irregular fissure veins of quartz and brecciated Jurassic quartz monzonite mineralized with spotty, partly oxidized, auriferous and argentiferous galena and minor chalcopyrite. Associated with dark, pyritized dikes.
Workings include a shallow pit, trench, and adit operations. Prospected ion the mid-1800's and mined sporadically into the 1940's. Produced some 60 or more tons of ore averaging about 0.4 oz. Au/T, 3% Pb, and 2 oz. Ag/T.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
2 valid minerals.
Detailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Galena Formula: PbS |
| ⓘ Galena var. Silver-bearing Galena Formula: PbS with Ag |
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 |
| ⓘ | var. Silver-bearing Galena | 2.CD.10 | PbS with Ag |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Ag | Silver | |
| Ag | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
Other Databases
| Link to USGS MRDS: | 10026805 |
|---|
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
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
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