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Trench and Josephine Mine group (Josephine Mines; Trench group of claims; Lunch Cans prospect), Alum Gulch, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USAi
Regional Level Types
Trench and Josephine Mine group (Josephine Mines; Trench group of claims; Lunch Cans prospect)- not defined -
Alum GulchGulch
Harshaw Mining DistrictMining District
Patagonia MountainsMountain Range
Santa Cruz CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
31° 27' 55'' North , 110° 43' 44'' West
Latitude & Longitude (decimal):
31.46528,-110.72889
GeoHash:
G#: 9t97021dt
GRN:
N21W68
KΓΆppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Patagonia890 (2017)8.6km
Kino Springs136 (2011)13.7km
Beyerville177 (2011)16.4km
Francisco Miguel CΓ‘rdenas Valdez (MascareΓ±as)541 (2014)22.1km
Rio Rico18,962 (2011)23.5km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Huachuca Mineral and Gem ClubSierra Vista, Arizona41km
Mindat Locality ID:
187183
Long-form identifier:
mindat:1:2:187183:1
GUID (UUID V4):
144a2b6b-7e85-415f-8d2c-8f65587f063c


Ref.: Schrader, F.C. (1915) Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, with contributions by J.M. Hill: U.S. Geological Survey Bulletin 582, 373 p., 3 sheets, scale 1:125,000: 253-254.

Kartchner, W.E. (1944) The geology and ore deposits of a portion of the Harshaw district, Patagonia Mountains, Arizona: Tucson, University of Arizona, Ph.D. dissertation, 100 p.: 88-90.

Simons, F.S. (1972) Mesozoic stratigraphy of the Patagonia Mountains and adjoining areas, Santa Cruz County, Arizona, in Mesozoic stratigraphy in southeastern Arizona: U.S. Geological Survey Professional Paper 658-E: E21-E22.

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) State of Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch Bull. 191, Index of Mining Properties in Santa Cruz County, Arizona: 59.

U.S. Bureau of Mines - Arizona Bureau of Geology and Mineral Technology file data.

MRDS database Dep. ID file #10048334, MRDS ID #M899918.

A former small underground Zn-Ag-Pb-Cu-Au-Mn mine group located in the SEΒΌNEΒΌ sec. 5, T23S, R16E, 1ΒΌ mile W of Harshaw, on an eastern tributary of Alum Gulch, on National Forest land. Discovered 1855 by Mexicans. Produced 1893-1965. Owned/operated by Mr. J. Nash and E. Mc Farland (1954). Other owners and operators included COL Titus (1859); J.B. Hagan (patented claims prior to 1872); Padrez (1870'S); Hearst Estate (1880-?); Powers and Associates (1899); W.A. Clark (1915); Farrell and Morrison; American Smelting and Refining Co.; Hoy and Coombs; the Trench Consolidated Mining Co.; C.B. Wilson; A.D. Sydenham; the Trench Mining Co.; the Gold Canyon Mining Co. (S.F. Cox, 1937); and, F. Ahlberg.

Mineralization is NW-trending vein systems in a fractured mass of intrusive diabase. The veins and ore are banded, porous, and drusy. The ore zone is narrow and pinches out in places. Ore concentration was secondary enrichment. Mineralization is not uniform and ore beds are intermittent. Alteration is pyrite gossan. The ore zone is 36576 meters long, 1.52 meters wide, with a depth to bottom of 304.8 meters, strikes N57W and dips 60NNE, and plunges SE. An associated rock unit is the Josephine Canyon Diorite. Rhyolite similar to that of Red Mountain is present.

The Josephine Mine ore consists primarily of sulfides. The fissure vein on the Trench claim dips 60NNE and averages 1-5 feet in width. The Josephine Mine is on the NW continuation of the Trench vein. Fairly high-grade material extends to a depth of 450 feet. Two principal veins, the Trench and Josephine, are sub-parallel and are linked by the cross vein, which strikes NE and dips SE.

Fractures in intrusive diabase appear to have localized ore deposits in the Trench area. Veins become unproductive as soon as they pass from diabase into the underlying tuffaceous conglomerate. The width and grade of the Trench vein diminish toward the SE.

Tectonic elements include the Meadow Valley Trachyandesite Flow and thick lava flows of the Harshaw-Trench Camp area.

Workings are 3,962.4 meters long and have a depth of 243.84 meters. Assay values averaged 6% Pb, 5% Zn, 6 oz./ton Ag, minor Cu and Au.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

12 valid minerals.

Detailed Mineral List:

β“˜ Alabandite
Formula: MnS
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ Cerussite
Formula: PbCO3
β“˜ Cerussite var. Silver-bearing Cerussite
Formula: PbCO3 with Ag
β“˜ 'Freibergite Subgroup'
Formula: (Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1
β“˜ Galena
Formula: PbS
β“˜ Galena var. Silver-bearing Galena
Formula: PbS with Ag
β“˜ Hematite
Formula: Fe2O3
Description: Iridescent; secondary - derived from pyrite.
β“˜ Hematite var. Specularite
Formula: Fe2O3
Description: Iridescent; secondary - derived from pyrite.
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Pearceite
Formula: [Ag6As2S7][Ag9CuS4]
β“˜ Pyrite
Formula: FeS2
β“˜ Pyromorphite
Formula: Pb5(PO4)3Cl
β“˜ Quartz
Formula: SiO2
Description: Porous and drusy.
β“˜ Rhodochrosite
Formula: MnCO3
β“˜ Smithsonite
Formula: ZnCO3
β“˜ Sphalerite
Formula: ZnS
β“˜ 'Tetrahedrite Subgroup'
Formula: Cu6(Cu4C2+2)Sb4S12S

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
β“˜Sphalerite2.CB.05aZnS
β“˜Alabandite2.CD.10MnS
β“˜Galena
var. Silver-bearing Galena		2.CD.10PbS with Ag
β“˜2.CD.10PbS
β“˜Pyrite2.EB.05aFeS2
β“˜'Freibergite Subgroup'2.GB.05(Ag6,[Ag6]4+)(Cu4 C2+2)Sb4S12S0-1
β“˜'Tetrahedrite Subgroup'2.GB.05Cu6(Cu4C2+2)Sb4S12S
β“˜Pearceite2.GB.15[Ag6As2S7][Ag9CuS4]
Group 4 - Oxides and Hydroxides
β“˜Hematite4.CB.05Fe2O3
β“˜var. Specularite4.CB.05Fe2O3
β“˜Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
β“˜Rhodochrosite5.AB.05MnCO3
β“˜Smithsonite5.AB.05ZnCO3
β“˜Cerussite
var. Silver-bearing Cerussite		5.AB.15PbCO3 with Ag
β“˜5.AB.15PbCO3
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Pyromorphite8.BN.05Pb5(PO4)3Cl
Group 9 - Silicates
β“˜Muscovite
var. Sericite		9.EC.15KAl2(AlSi3O10)(OH)2
β“˜9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

List of minerals for each chemical element

HHydrogen
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
Cβ“˜ CerussitePbCO3
Cβ“˜ RhodochrositeMnCO3
Cβ“˜ SmithsoniteZnCO3
Cβ“˜ Cerussite var. Silver-bearing CerussitePbCO3 with Ag
OOxygen
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ CerussitePbCO3
Oβ“˜ HematiteFe2O3
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ PyromorphitePb5(PO4)3Cl
Oβ“˜ QuartzSiO2
Oβ“˜ RhodochrositeMnCO3
Oβ“˜ SmithsoniteZnCO3
Oβ“˜ Hematite var. SpeculariteFe2O3
Oβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oβ“˜ Cerussite var. Silver-bearing CerussitePbCO3 with Ag
FFluorine
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MgMagnesium
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
AlAluminium
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
PPhosphorus
Pβ“˜ PyromorphitePb5(PO4)3Cl
SSulfur
Sβ“˜ AlabanditeMnS
Sβ“˜ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Sβ“˜ GalenaPbS
Sβ“˜ Pearceite[Ag6As2S7][Ag9CuS4]
Sβ“˜ PyriteFeS2
Sβ“˜ SphaleriteZnS
Sβ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
Sβ“˜ Galena var. Silver-bearing GalenaPbS with Ag
ClChlorine
Clβ“˜ PyromorphitePb5(PO4)3Cl
KPotassium
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
TiTitanium
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
MnManganese
Mnβ“˜ AlabanditeMnS
Mnβ“˜ RhodochrositeMnCO3
FeIron
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ HematiteFe2O3
Feβ“˜ PyriteFeS2
Feβ“˜ Hematite var. SpeculariteFe2O3
CuCopper
Cuβ“˜ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Cuβ“˜ Pearceite[Ag6As2S7][Ag9CuS4]
Cuβ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
ZnZinc
Znβ“˜ SmithsoniteZnCO3
Znβ“˜ SphaleriteZnS
AsArsenic
Asβ“˜ Pearceite[Ag6As2S7][Ag9CuS4]
AgSilver
Agβ“˜ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Agβ“˜ Pearceite[Ag6As2S7][Ag9CuS4]
Agβ“˜ Galena var. Silver-bearing GalenaPbS with Ag
Agβ“˜ Cerussite var. Silver-bearing CerussitePbCO3 with Ag
SbAntimony
Sbβ“˜ Freibergite Subgroup(Ag6,[Ag6]4+)(Cu4 C22+)Sb4S12S0-1
Sbβ“˜ Tetrahedrite SubgroupCu6(Cu4C22+)Sb4S12S
PbLead
Pbβ“˜ CerussitePbCO3
Pbβ“˜ GalenaPbS
Pbβ“˜ PyromorphitePb5(PO4)3Cl
Pbβ“˜ Galena var. Silver-bearing GalenaPbS with Ag
Pbβ“˜ Cerussite var. Silver-bearing CerussitePbCO3 with Ag

Other Databases

Link to USGS MRDS:10048334

Localities in this Region

USA
  • Arizona
    • Santa Cruz County
      • Patagonia Mountains

Other Regions, Features and Areas containing this locality

Mexico
North America
North America PlateTectonic Plate

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