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Gringo Mine (Gringo Mine group of claims; Francis group of claims; Temporal group of claims), Gringo Gulch, Temporal Gulch, Wrightson District, Santa Rita Mts, Santa Cruz Co., Arizona, USA

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Latitude & Longitude (WGS84): 31° 34' 18'' North , 110° 46' 9'' West
Latitude & Longitude (decimal): 31.57167,-110.76944
GeoHash:G#: 9t95x7knk
Locality type:Mine
Köppen climate type:BSk : Cold semi-arid (steppe) climate


A former small underground Au-Ag-Pb-Cu-Zn-Mo-Feldspar mine located on 9 claims, in the NE¼NE¼NW¼ sec. 36, T.21S., R.15E., in the southern part of the district about 3 miles NNW of Patagonia in Gringo Gulch (south side), a northeast tributary of Temporal Gulch, ½ mile of Fresno Springs, at an elevation of about 4,250 feet, on National Forest land. It is about ¼ mile above the mouth of Gringo Gulch. It was discovered about 1893 by R.R. Richardson. Operated 1907-1937. Owned at times, or in part, by the Arizona Gold Mines & Milling Co. (1906-1907); Altamirano; and, M. Richmond.

Mineralization is in E-W-trending irregular lensing quartz-calcite fissure veins cutting rhyolitic tuff and andesitic flows. Two main veins and several mineralizaed cross veins exist. The ore zone is 6.1 meters wide and dips 80S. Ore concentration was hydrothermal mineralization of gold-bearing siliceous solutions through fissures after intrusion or erupting of igneous rocks.

The country rock is andesite (Middle Member of the Bathtub Formation; the Gringo Gulch Volcanics, and dacite-porphyry. The andesite is a more or less propylitically altered, epidotized gray, fine-grained, moderately porphyritic rock. It is somewhat banded with flow structure and weathers reddish-brown. Calcite films coat the joint planes and some calcite occurs in the rock. The rock is composed principally of long and short laths of oligoclase-andesine, hornblende, and biotite resting in a glassy base having parallel fluidal structure, with a few larger feldspar phenocrysts some of which are nearly 0.2 inches long. There is also considerable magnetite and a little augite and calcite. The rock is apparently correlative with the early andesite occurring elsewhere.

The andesite is cut by a steeply southward-dipping sheeting, about parallel with the lode, and also by two other sheeting structures, one trending northeast and the other northwest.

The deposits are contained mainly in two veins, the Gringo and the Independent, which traverse the andesite and are said to extend for several miles. This mine extends for some 4,500 feet on the veins. The veins range in width from 5-20 feet. The Gringo vein is accompanied in places on the footwall by a 7 foot dike which carries almost the same amount of gold as the vein and seems to be a metasomatic replacement deposit in wall rock. The Independent vein is about parallel to, and 600 feet N of the Gringo vein, and widens to 40 feet where joined by spur veins. The property extends 4500 feet on vein.

There are also several diagonal or cross veins on the property, one of which extends from the Independent vein near the east end of the ground to the Gringo vein beyond the shaft, near the west end.

The veins of the Gringo Mine and vicinity belong to the late metallogenetic epoch.

Mineralization on this series of irregular lensing quartz-calcite veins, some of coarse-grained, banded quartz, minor calcite, and crushed rock, containing fine-grained, free gold with minor silver, iron and manganese staining and sparse copper and lead sulfides and molybdates, deeply oxidized. Others, with more calcite, contain more copper and lead minerals. Wall rock is Cretaceous rhyolitic tuff and andesite. The gold is uniformly distributed in the veins but generally favors the footwall and is only rearely found in the hanging wall.

Workings include shaft operations. It is developed to a depth of 180 feet or more (76.2 meters) by drifts and shafts aggregating about 3,000 feet (914.4 meters) of work. A 5-stamp mill, then a 10-stamp mill, were erected on the property. This mine group was discovered in the 1890's but worked mainly for gold in 1907-1908. Minor lead-copper production in 1929-1930 and 1937. Total output was some 100 tons of 0.43 oz. Au/T and 0.5 oz. Ag/T ore and some 40 tons of 6% Pb, 4% Cu and 12 oz. Ag/T ore.

Alternative Label Names

This is a list of additional names that have been recorded for mineral labels associated with this locality in the minID database. This may include previous versions of the locality name hierarchy from mindat.org, data entry errors, and it may also include unconfirmed sublocality names or other names that can only be matched to this level.

Gringo Gulch, Santa Cruz County, Arizona

Regions containing this locality

Sonoran Desert, North America

Desert - 1,135 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


12 valid minerals.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 222-226.
Albite var: Oligoclase
Formula: (Na,Ca)[Al(Si,Al)Si2O8]
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 222-226.
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 222-226.
'Biotite'
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 222-226.
Calcite
Formula: CaCO3
Reference: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 89 (Table 4); Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 222-226; Arizona Bureau of Mines file data.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: MRDS database Dep. ID file #10037110, MRDS ID #M030418.
Ferro-hornblende
Formula: ☐{Ca2}{Fe2+4Al}(AlSi7O22)(OH)2
Reference: MRDS database Dep. ID file #10037110, MRDS ID #M030418.
Fluorite
Formula: CaF2
Colour: Purple
Description: Banded with quartz.
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 224.
Gold
Formula: Au
Description: As fine-grained, lode gold
Reference: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 89 (Table 4); Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 222-226; Arizona Bureau of Mines file data.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: MRDS database Dep. ID file #10037110, MRDS ID #M030418.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 222-226.
Malachite
Formula: Cu2(CO3)(OH)2
Description: As staining matter in quartz.
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 224.
Quartz
Formula: SiO2
Colour: Reddish, brown, greenish
Description: Much exhibits forms indicating pseudomorphic replacement of calcite.
Reference: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 89 (Table 4); Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 222-226; Arizona Bureau of Mines file data.
Wulfenite
Formula: Pb(MoO4)
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 426; Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 225; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 80.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Gold'1.AA.05Au
Group 3 - Halides
'Fluorite'3.AB.25CaF2
Group 4 - Oxides and Hydroxides
'Magnetite'4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
'Malachite'5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Wulfenite7.GA.05Pb(MoO4)
Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
var: Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
'Augite'9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
'Epidote'9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
'Ferro-hornblende'9.DE.10☐{Ca2}{Fe2+4Al}(AlSi7O22)(OH)2
'Kaolinite'9.ED.05Al2(Si2O5)(OH)4
Unclassified Minerals, Rocks, etc.
'Biotite'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Wulfenite48.1.3.1Pb(MoO4)
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Rocks, etc.
var: Oligoclase-(Na,Ca)[Al(Si,Al)Si2O8]
'Biotite'-
Ferro-hornblende-☐{Ca2}{Fe2+4Al}(AlSi7O22)(OH)2
Kaolinite-Al2(Si2O5)(OH)4

List of minerals for each chemical element

HHydrogen
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
H KaoliniteAl2(Si2O5)(OH)4
H MalachiteCu2(CO3)(OH)2
CCarbon
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O AlbiteNa(AlSi3O8)
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O CalciteCaCO3
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
O KaoliniteAl2(Si2O5)(OH)4
O MagnetiteFe2+Fe23+O4
O MalachiteCu2(CO3)(OH)2
O Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
O QuartzSiO2
O WulfenitePb(MoO4)
FFluorine
F FluoriteCaF2
NaSodium
Na AlbiteNa(AlSi3O8)
Na Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
MgMagnesium
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
Al KaoliniteAl2(Si2O5)(OH)4
Al Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
Si KaoliniteAl2(Si2O5)(OH)4
Si Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Si QuartzSiO2
CaCalcium
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Ca CalciteCaCO3
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
Ca FluoriteCaF2
Ca Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
FeIron
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Ferro-hornblende☐{Ca2}{Fe42+Al}(AlSi7O22)(OH)2
Fe MagnetiteFe2+Fe23+O4
CuCopper
Cu MalachiteCu2(CO3)(OH)2
MoMolybdenum
Mo WulfenitePb(MoO4)
AuGold
Au GoldAu
PbLead
Pb WulfenitePb(MoO4)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Quaternary - Miocene
0 - 23.03 Ma



ID: 3185380
Cenozoic sedimentary rocks

Age: Cenozoic (0 - 23.03 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Campanian - Oxfordian
72.1 - 163.5 Ma



ID: 2809103
Cretaceous to Late Jurassic sedimentary rocks with minor volcanic rocks

Age: Mesozoic (72.1 - 163.5 Ma)

Stratigraphic Name: Temporal Formation; Bathtub Formation; Sand Wells Formation; Fort Crittenden Formation; McCoy Mountains Formation

Description: Sandstone and conglomerate, rarely forms prominent outcrops; massive conglomerate is typical near base of unit and locally in upper part. These deposits are nonmarine except in southeastern Arizona, where prominent gray marine limestone (Mural Limestone) forms the middle of the Bisbee Group. Sandstones are typically medium-bedded, drab brown, lithic-feldspathic arenites. Includes Bisbee Group (largely Early Cretaceous) and related rocks, Temporal, Bathtub, and Sand Wells formations, rocks of Gu Achi, McCoy Mountains Formation, and Upper Cretaceous Fort Crittenden Formation and equivalent rocks. (80-160 Ma)

Lithology: Major:{arenite,conglomerate}, Minor:{limestone}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 222-226.
Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 80.
Drewes, H.D. (1971) Geologic map of the Mount Wrightson quadrangle, southeast of Tucson, Santa Cruz and Pima Counties, Arizona: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-614, 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: 89 (Table 4).
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 426.
U.S. Bureau of Mines file data, Gringo Mine group.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10037110, MRDS ID #M030418; and, Dep. ID #10259124, MAS ID #0040230209.


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