Friez Mine (Friez prospect; Gold Bug Mine), Enzenberg Canyon, Greaterville Mining District, Pima County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Friez Mine (Friez prospect; Gold Bug Mine) | Mine |
| Enzenberg Canyon | Canyon |
| Greaterville Mining District | Mining District |
| Pima County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
31° 46' 5'' North , 110° 46' 51'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Sonoita | 818 (2015) | 15.3km |
| Corona de Tucson | 5,675 (2011) | 21.9km |
| Green Valley | 21,391 (2011) | 22.3km |
| East Sahuarita | 1,622 (2006) | 23.9km |
| Patagonia | 890 (2017) | 25.5km |
‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 153, 154.
Drewes, Harald (1970) Structural control of geochemical anomalies in the Greaterville mining district, southeast of Tucson: U.S. Geological Survey Bulletin 1312-A, p. A1-A49, 1 sheet, scale 1:24,000.
Drewes, H.D. (1971) Geologic map of the Sahuarita quadrangle, southeast of Tucson, Pima County, Arizona: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-613, 1 sheet, scale 1:48,000.
MRDS database Dep. ID file #10039500, MRDS ID #M050174.
A Cu prospect/mine located in sec. 23, T19S, R15E, on Enzenburg Canyon at 5,560 feet of altitude, 37 miles SE of Tucson. Discovered 1915.
Mineralization is a stockwork ore body in the coarse granite country rock. The ore body is 274.32 meters long and 51.82 meters wide. The granite is cut by 2 north-south rhyolitic dikes about 20 feet apart, between which the granite, being of finer grain than usual and pyritic, is meshed or converted into a close stockwork by innumerable iron-stained mineralized drusy quartz veins extending in all directions and containing pyrite and some chalcopyrite. This mineralized stockwork extends laterally 150 feet east of the eastern dike, which, like the granite, is also pyritic, and longitudinally 400 feet north and 500 feet south of the canyon, giving way to the normal country-rock granite. It seems likely that the western dike, which is a dense white siliceous rock and sharply delimits the deposits on the west, has caused the mineralization. The host rock unit is the Willow Canyon Formation. Ore control was fractures and faults.
Local structures include thrust and normal faulting, fracture zones, homoclinal. Regional trends include tilting and broad open folds in the south and extensive faulting in the north.
There is no production record.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Pyrite Formula: FeS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
Other Databases
| Link to USGS MRDS: | 10039500 |
|---|
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
USA
- Arizona
- Santa Rita MountainsMountain Range
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