South San Xavier Mine group (Gray Copper Mine; Franklin group), Pima Mining District, Sierrita Mountains, Pima County, Arizona, USAi
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
31° 58' 14'' North , 111° 6' 11'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Sahuarita | 25,707 (2017) | 14.0km |
| Green Valley | 21,391 (2011) | 16.5km |
| East Sahuarita | 1,622 (2006) | 16.8km |
| Summit | 5,372 (2011) | 17.9km |
| Valencia West | 9,355 (2011) | 18.0km |
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 | 32km |
| Tucson Gem and Mineral Society | Tucson, Arizona | 32km |
Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 92.
Ransome, F.L. (1922) Ore deposits of the Sierrita Mountains, Pima County, Arizona, in Contributions to Economic Geology (Short Papers and Preliminary Reports), 1921 - Part I.--Metals and Nonmetals except Fuels: U.S. Geological Survey Bulletin 725J: 422-423.
Mayuga, M.N. (1942) The Geology and Ore Deposits of the Helmet Peak Area, Pima County, Arizona, PhD thesis, University of Arizona.
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 138 (Table 4).
Arizona Bureau of Mines file data.
USGS Twin Buttes Quadrangle topo map.
MRDS database Dep. ID file #10109607, MRDS ID #M050363; and, Dep. ID #10113156, MAS ID #0040190410.
A former small underground Cu-Pb-Ag-Zn-Au mine located in the NE¼NE¼NE¼ sec. 10, T.17S., R.12E., 5 miles NNW of Twin Buttes, on land of unknown status. Operated 1900-1947. Owned/operated at times, or in part, by the South San Xavier Copper Co.; Empire Zinc Co.; W.C. Fields; Hall & Lewis; Selim Franklin; and the Eagle Picher Mining & Smelting Co.
Mineralization is irregular, pyrometasomatic replacement orebodies with siliceous capping and strong garnetization, containing partly oxidized base metal sulfides in Paleozoic limestone along a strong fault zone and in contact with Laramide intrusive granite.
Local structures include an E-W fault zone contact between limetone and arkose.
Workings include shaft operations. Sporadic production occurred in the early 1900's to 1947. Some 2,000 tons of ore averaging about 4% Cu, 4% Pb, 2% Zn, 2.5 oz. Ag/T and minor gold were produced.
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:
| ⓘ Bornite Formula: Cu5FeS4 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| Unclassified | |||
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Si | Silicon | |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| S | Sulfur | |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| Fe | Iron | |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
Other Databases
| Link to USGS MRDS: | 10109607 |
|---|
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
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
