Peach Mine, Peach-Elgin copper deposit, Helvetia-Rosemont Mining District, Pima County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Peach Mine | Mine |
| Peach-Elgin copper deposit | Deposit |
| Helvetia-Rosemont Mining District | Mining District |
| Pima County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
31° 52' 0'' North , 110° 47' 42'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Corona de Tucson | 5,675 (2011) | 11.1km |
| East Sahuarita | 1,622 (2006) | 15.2km |
| Sahuarita | 25,707 (2017) | 18.2km |
| Green Valley | 21,391 (2011) | 18.8km |
| Vail | 10,208 (2011) | 21.6km |
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 | 41km |
| Tucson Gem and Mineral Society | Tucson, Arizona | 41km |
Other/historical names associated with this locality:
Peach prospect; Helvetia West Mine
‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 92, 125.
Heyman, Arthur M. (1958) Geology of the Peach-Elgin copper deposit, Helvetia district, Arizona: Tucson, University of Arizona, M.S. thesis, 66 p.
Pay Dirt (1970): August 24, 1970 (history).
Arizona Bureau of Mines Field notes (1971): 1(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).
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 12-13 (Table 1).
Sawyer, M.B., Gurmendi, A.C., Daley, M.R., and Howell, S.B. (1992) Principal Deposits of Strategic and Critical Minerals in Arizona, U.S. Bureau of Mines Special Publication, 334 pp.
Anzalone, S.A. and Brown (1992) Geology of the Helvetia Copper Deposit, SME pre-print 92-61.
Anzalone, S.A. (1995) The Helvetia area porphyry systems, Pima County, Arizona, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits of the American Cordillera: Arizona Geological Society Digest 20, p. 436-441.
USGS Sahuarita Quadrangle topo map.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10088601, MRDS ID #M050164; and, Dep. ID #10137491, MAS ID #0040190357; and, Dep. ID #10186454, MRDS ID #D000804, MAS ID #0040190086.
A former small surface and underground Cu-Zn-Ag-Pb-Au-Mo mine located on a patented claim in the SE ¼ (NE¼ ?)sec. 15, T.18S., R.15E. (Sahuarita 15 minute topo map), south of the Noonday. Discovered 1870. Produced 1890-1952. Owned at times, or in part, by the Rosemont Copper Co.
Mineralization is copper carbonates, oxides, silicates, and sulfides with some spotty lead and zinc minerals in selective, pyrometasomatic replacement deposits guided by faults and favorable beds in thrust-faulted Paleozoic limestone in a thrust fault klippe and containing considerble blue, green and black copper carbonates, some chalcopyrite and chrysocolla, and much brown iron stain. Some disseminated copper mineralization occurs in shattered early Paleozoic quartzite. Ore control was faults and favorable beds. Alteration includes silication. The host rock units are the Martin Formation and the Abrigo Formation.
Workings include a 60 foot deep shaft, some drifts and open cut workings. Worked from 1882 to 1952 with intermittent production of some 13,000 tons of ore averaging about 5% Cu, 2% Zn, 0.8 oz. Ag/T and minor Pb & Au.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 |
| ⓘ Bornite Formula: Cu5FeS4 |
| ⓘ Chalcocite Formula: Cu2S |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| ⓘ Cuprite Formula: Cu2O |
| ⓘ Diopside Formula: CaMgSi2O6 |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Molybdenite Formula: MoS2 |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Tenorite Formula: CuO |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcocite | 2.BA.05 | Cu2S |
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Tenorite | 4.AB.10 | CuO |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 9 - Silicates | |||
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Unclassified | |||
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| 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 | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Tenorite | CuO |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Mg | Magnesium | |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| 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 |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| S | Sulfur | |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Chalcocite | Cu2S |
| S | ⓘ Molybdenite | MoS2 |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Fe | Iron | |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Chalcocite | Cu2S |
| Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Tenorite | CuO |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
Other Databases
| Link to USGS MRDS: | 10088601 |
|---|
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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