Augusta Mine (Hosey Mine; Presidential Mine), Hosey Mine group, Mansfield Gulch (Mansfield Canyon), Temporal Gulch, Wrightson Mining District, Santa Cruz County, Arizona, USAi
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Latitude & Longitude (WGS84):
31° 37' 37'' North , 110° 50' 38'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Patagonia | 890 (2017) | 12.8km |
Sonoita | 818 (2015) | 18.6km |
Tubac | 1,191 (2011) | 19.2km |
Tumacacori-Carmen | 393 (2015) | 20.0km |
Rio Rico | 18,962 (2011) | 21.4km |
Mindat Locality ID:
34336
Long-form identifier:
mindat:1:2:34336:0
GUID (UUID V4):
9cfeafd3-c8af-4d9d-9c15-ad3dd00bebfe
β‘Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 230-231.
Galbraith, F.W. (1947), Minerals of Arizona, Arizona Bureau of Mines Bull. 153: 15, 28.
Rohrbacker, R.T. (1964) Geology of the Temporal Gulch-Mansfield Canyon area, Santa Cruz County, Arizona: Tucson, University of Arizona, M.S. thesis, 81 p.
Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 89 (Table 4).
Arizona Bureau of Mines file data.
A Pb-Ag-Cu-Au-Zn mine located on 7 claims in the NE ΒΌ sec. 7, T.21S., R.15E., about 1 mile NW of the American Boy Mine, near the head of a north-side head tributary of Mansfield Gulch, at an elevation of about 5,500 feet. Known as early as 1880. Discovered in workable amount in 1905 by John Leek. Owned at times, or in part, by the Presidential Mining Co.; John Leek & associates (1905-1909); William Kemp, of Tucson (1909- ); Calumet Arizona Co.; Ferguson; the McDonald Mining Co.; Colonel O.P. Posey (circa 1915); and, Altamirano & Matrecita.
Mineralization is lensing quartz-fissure veins (American Boy lode) containing brecciated wall rock and shoots and stringers of massive, granular, and crystalline pyrite, other sulfides and sulfosalts, with minor calcite and hematite plus some spotty sphalerite. The wall rock is Triassic monzonite intruded by Jurassic granite.
Country rock is quartz monzonite cut by rhyolitic dikes, with which the deposits are associated. It is a fine-grained, very dark iron-gray rock that weathers reddish and is moderately porphyritic. It contains magnetite and hematite, also chlorite derived from the hornblende and biotite. It is traversed by a sheeting which dips steeply to the south, about parallel with the veins, and by a more pronounced sheeting that strikes a little west of north and dips steeply to the east or stands vertical.
The property contains 3 veins which lie about parallel and dips 75ΒΊS. Each vein is associated with the footwall side of a rhyolite dike. From the south, or main, vein, the middle vein lies 30 feet distant and the north vein 140 feet.
The south vein, on which nearly all the development work has been done, is from 8 to 15 feet in width, and just west of the shaft is marked by croppings of brecciated and honeycombed hematite- and limonite-stained quartz, rising boldly 8 feet above the surface. It reportedly carries a 4 foot wide oreshoot which averages about 12Β½% Cu and contains some Ag & Au.
The ore is siliceous and occurs in part as metasomatic replacement deposits in the rock. It contains mainly fine-grained sulphides and sulphosalts.
Workings include a 40 foot deep shaft (circa 1905). Developed to a depth of 215 feet by shafts, drifts, crosscuts, and stopes aggregating about 1,000 feet or work. Levels are about 100 and 200. Workings on the south vein include the 215 foot, double-compartment shaft inclined 75ΒΊ and a few hundred feet of drifts extending each way, with crosscuts and stopes on the 100 and 200 levels. The middle vein is opened by an 80 foot deep shaft, all in ore, and a crosscut near surface. Only a little surface work had been done on the north vein (circa 1915). Worked in the 1880's and sporadically through 1936. The group produced some 450 tons of ore averaging about 15% Pb, 9% Cu, 9 oz. Ag/T and 0.4 oz. Au/T.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
β Acanthite Formula: Ag2S |
β Bornite Formula: Cu5FeS4 Description: Occurs in the north vein. |
β Bournonite Formula: PbCuSbS3 |
β Chalcocite Formula: Cu2S |
β Chalcopyrite Formula: CuFeS2 Description: Massive, fine-grained variety. |
β Hematite Formula: Fe2O3 Description: Occurs in ore and as a constituent of the country rock. |
β Magnetite Formula: Fe2+Fe3+2O4 Description: A constituent of the country rock. |
β Pyrite Formula: FeS2 Description: Massive, fine-grained variety. |
β 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
β | Chalcocite | 2.BA.05 | Cu2S |
β | Bornite | 2.BA.15 | Cu5FeS4 |
β | Acanthite | 2.BA.35 | Ag2S |
β | Chalcopyrite | 2.CB.10a | CuFeS2 |
β | Pyrite | 2.EB.05a | FeS2 |
β | Bournonite | 2.GA.50 | PbCuSbS3 |
β | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
Group 4 - Oxides and Hydroxides | |||
β | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
β | Hematite | 4.CB.05 | Fe2O3 |
List of minerals for each chemical element
O | Oxygen | |
---|---|---|
O | β Hematite | Fe2O3 |
O | β Magnetite | Fe2+Fe23+O4 |
S | Sulfur | |
S | β Acanthite | Ag2S |
S | β Bornite | Cu5FeS4 |
S | β Bournonite | PbCuSbS3 |
S | β Chalcopyrite | CuFeS2 |
S | β Chalcocite | Cu2S |
S | β Pyrite | FeS2 |
S | β Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
Fe | Iron | |
Fe | β Bornite | Cu5FeS4 |
Fe | β Chalcopyrite | CuFeS2 |
Fe | β Hematite | Fe2O3 |
Fe | β Magnetite | Fe2+Fe23+O4 |
Fe | β Pyrite | FeS2 |
Cu | Copper | |
Cu | β Bornite | Cu5FeS4 |
Cu | β Bournonite | PbCuSbS3 |
Cu | β Chalcopyrite | CuFeS2 |
Cu | β Chalcocite | Cu2S |
Cu | β Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
Ag | Silver | |
Ag | β Acanthite | Ag2S |
Sb | Antimony | |
Sb | β Bournonite | PbCuSbS3 |
Sb | β Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
Pb | Lead | |
Pb | β Bournonite | PbCuSbS3 |
Other Regions, Features and Areas containing this locality
Mexico
- Sierra Madre OccidentalMountain Range
North America
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mazatzal DomainDomain
USA
- Arizona
- Santa Rita MountainsMountain Range
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