Pickwick Mine, Rosemont (Rosemont Camp), Helvetia-Rosemont Mining District, Pima County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Pickwick Mine | Mine |
| Rosemont (Rosemont Camp) | Mining Area |
| Helvetia-Rosemont Mining District | Mining District |
| Pima County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
31° 49' 50'' North , 110° 45' 32'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Corona de Tucson | 5,675 (2011) | 15.1km |
| Sonoita | 818 (2015) | 19.4km |
| East Sahuarita | 1,622 (2006) | 20.3km |
| Green Valley | 21,391 (2011) | 22.3km |
| Sahuarita | 25,707 (2017) | 23.3km |
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 | 46km |
| Tucson Gem and Mineral Society | Tucson, Arizona | 46km |
Other/historical names associated with this locality:
Pickwick prospect; Sweet group
‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 92, 129-130.
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 13 (Table 1).
Arizona Bureau of Mines field notes (1971), vol. 1, no. 2.
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.
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 128 (Table 4).
USGS Sahuarita Quadrangle topo map.
MRDS database Dep. ID file #10039492, MRDS ID #M050162; and, Dep. ID #10162018, MAS ID #0040190361.
A former small underground Cu-Ag mine located in the NE ¼ sec. 36, T.18S., R.15E. (Sahuarita 15 minute topo map), about 28 miles SE of Tucson. Discovered 1915. Operated 1915-1929. Owned at times, or in part, by McCleary and partners; and the Southern Arizona Mining Co.
Mineralization is a tabular ore body containing copper carbonates, oxides and chalcocite in crushed and altered Paleozoic limestone and Laramide quartz latite porphyry along fault contacts and in fault zones. A fault plane dips 80ºNW. between intrusive altered granite porphyry on the hanging wall and limestone country rock on the footwall. The ore body is 1.22 meters wide. Host rock units are the Willow Canyon Formation Cretaceous conglomerate and siltstone. An associated rock unit is a quartz latite at 56 ± 2 MY. Alteration is silicification.
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.
Workings include shaft and tunnel operations. Some 140 tons of ore averaging about 8% Cu and 6 oz. Ag/T were produced in the late 1910's.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 |
| ⓘ Chalcocite Formula: Cu2S |
| ⓘ Cuprite Formula: Cu2O |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcocite | 2.BA.05 | Cu2S |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| S | Sulfur | |
| S | ⓘ Chalcocite | Cu2S |
| Cu | Copper | |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Chalcocite | Cu2S |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
Other Databases
| Link to USGS MRDS: | 10039492 |
|---|
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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