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Proto Mine (Proto group; Proto Brothers claim), Gladstone Mine group (Gladstone prospect; Gladstone-Proto group; Proto Mine group), Providencia Canyon, Patagonia Mining District, Patagonia Mountains, Santa Cruz Co., Arizona, USAi
Regional Level Types
Proto Mine (Proto group; Proto Brothers claim)Mine
Gladstone Mine group (Gladstone prospect; Gladstone-Proto group; Proto Mine group)- not defined -
Providencia CanyonCanyon
Patagonia Mining DistrictMining District
Patagonia MountainsMountain Range
Santa Cruz Co.County
ArizonaState
USACountry

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Key
Latitude & Longitude (WGS84):
31° 24' 0'' North , 110° 44' 57'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Kino Springs136 (2011)7.1km
Beyerville177 (2011)12.3km
Francisco Miguel Cárdenas Valdez (Mascareñas)541 (2014)14.5km
Patagonia890 (2017)15.5km
Nogales20,252 (2017)18.8km


‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 316-317.

Tenney, J.B. (1927-1929) History of Mining in Arizona, Special Collection, University of Arizona Library & Arizona Bureau of Mines Library: 313.

Baker, R.C., 1961, The geology and ore deposits of the southeast portion of the Patagonia Mountains, Santa Cruz County, Arizona: Ann Arbor, University of Michigan, Ph.D. dissertation.

Simons, F.S. (1974) Geologic map and sections of the Nogales and Lochiel quadrangles, Santa Cruz County, Arizona: U.S. Geological Survey Miscellaneous Investigations Series Map I-762, 9 p., 1 sheet, scale 1:48,000.

Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 81 (Table 4).

U.S. Bureau of Mines - Arizona Bureau of Geology and Mineral Technology production file data - Proto Mine group.

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10048333, MRDS ID #M899915; and, Dep. ID #10137938, MAS ID #0040230325.

A former small underground Cu-Ag-Pb-Au-Sb mine located in the center (center S½N½) of sec. 30, T.23S., R.16E. (protracted), 1.0 mile NW of the Four Metals Mine, less than ¼ mile to the NE of the Gladstone Mine, 7 miles W of Red Hill; 4 miles NW of Washington Camp, at about 5,000 feet of elevation. Discovered in 1888 by Antone Proto. Produced 1903-1942. Owned at times, or in part, by the Gladstone Mining Co. (1903); the Proto Brothers (1910-1918); Fulton (1929); Sullivan (1930); and, Dale Higgins. Owned by Mr. J. W. Forsythe (1966). Operated by the Hanna Mining Co. (1966). The Proto and Gladstone properties were merged in 1930, forming a total of 10 unpatented claims. The shaft is located on the USGS map. NOTE: Alternate coordinates provided: 31.3969N, 110.7511W.

Mineralization is a 2½ to 5 foot (1.52 meters) wide drusy and banded quartz vein that strikes N-S and dips 80ºE. into the mountain, with a dike or intrusive mass of Laramide granodiorite forming the footwall and the quartz monzonite country rock the hanging wall. Deposits occur in the form of subordinate veins, lenses, stringers, and seams in intrusive fissures, joints, sheeting planes, and other fractures in quartz monzonite and diorite. The vein at surface is highly iron-stained. There is strong wall rock alteration. The principal ore mineral is chalcopyrite. Ore concentration was oxidation at near surface. Mineralization accompanied or followed intrusion of a dike. The Gladstone and Proto Mine groups cover the central-6000 feet of the 5 mile long fissure system, with a known extent from the Buena Vista group on the south to the Morning Glory Mine on the north.

Tectonic elements include the Guajolote Fault Bloack. The NW-trending inferred Guajolote Fault lies to the east of the deposits. Downthrow is to the east.

Workings include shafts (one at 100 feet or more) and tunnels. Production since the early 1900's would be some 1,200 tons of ore averaging about 8% Cu, 3 oz. Ag/T, and minor Pb & Au. Production data was included in the figures for the Gladstone-Proto Mine group. The above data describes the Proto Mine; other claims in the Gladstone-Proto Mine group described under the Gladstone mine group.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List


4 valid minerals.

Detailed Mineral List:

Chalcopyrite
Formula: CuFeS2
Reference: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 81 (Table 4); Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 317; Arizona Bureau of Mines file data.
Galena
Formula: PbS
Description: Minor.
Reference: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 81 (Table 4); Schrader (1915): 316-317; Arizona Bureau of Mines file data.
Pyrite
Formula: FeS2
Reference: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 81 (Table 4); Schrader (1915): 316-317; Arizona Bureau of Mines file data.
Quartz
Formula: SiO2
Description: Drusy and banded.
Reference: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 81 (Table 4); Schrader (1915): 316-317; Arizona Bureau of Mines file data.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

OOxygen
O QuartzSiO2
SiSilicon
Si QuartzSiO2
SSulfur
S GalenaPbS
S PyriteFeS2
S ChalcopyriteCuFeS2
FeIron
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
CuCopper
Cu ChalcopyriteCuFeS2
PbLead
Pb GalenaPbS

Other Databases

USGS MRDS Record:10048333

Other Regions, Features and Areas containing this locality

North America
North America PlateTectonic Plate

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