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Hardshell Mine (Manto Mine; Eagle-Picher properties), Hardshell Gulch, Harshaw, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USAi
Regional Level Types
Hardshell Mine (Manto Mine; Eagle-Picher properties)Mine
Hardshell GulchGulch
Harshaw- not defined -
Harshaw Mining DistrictMining District
Patagonia MountainsMountain Range
Santa Cruz CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
31° 27' 29'' North , 110° 42' 51'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Patagonia890 (2017)9.9km
Kino Springs136 (2011)13.9km
Beyerville177 (2011)17.3km
Francisco Miguel CΓ‘rdenas Valdez (MascareΓ±as)541 (2014)21.7km
Nogales20,252 (2017)24.6km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Huachuca Mineral and Gem ClubSierra Vista, Arizona40km
Mindat Locality ID:
7989
Long-form identifier:
mindat:1:2:7989:4
GUID (UUID V4):
80e9c476-cbd0-4eee-ac03-039e24aa8616


A former small surface and underground Pb-Ag-Mn-Cu-Zn-Au occurrence/mine located in the center of sec. 4, T23S, R16E (protracted) on 42 claims, in Hardshell Gulch, at the foot of the steep southerly slope from Table Mountain, about 1 mile SW of Harshaw, a short distance West of Hermosa, on the easterly slope of the Patagonia Mountains, at 5,150 feet of altitude, on private (patented) land. Discovered by David Harshaw and JosΓ© Andrade in 1879. Produced 1896-1964. Owned at times, or in part, by Mr. R.R. Richardson (1880-1890; 1895-1896; 1897-1901); Mr. Heney of Tucson (1905- ); the Empire Mining & Milling Co. (Mr. Fitzgerald; Columbia Co.)(1896- ); Hardshell Mining Co.; Gardner & Young; Bender; Big Jim Mines, Inc.; Valenzuela; McFarland; and, the American Smelting & Refining Corp. (ASARCO).

Mineralization is irregular, lensing ore bodies and ore shoots of ferruginous and manganiferous, argentiferous cerussite, complex lead and zinc oxidation products, chlorargyrite and other silver halides, and spotty copper and gold as replacement of fault gouge and silicified fault breccia in a strong fault zone. The ore zone is 460 meters long, 275 meters wide and 18 meters thick, strikes E-W and dips 35N. The shear zone is about 300 feet long and 30 feet wide. Wall rocks are Jurassic-Triassic volcanics and Cretaceous andesite with thin interbedded limestone, shale, and conglomerate. Some spotty, high-grade manganese oxide areas. Cretaceous dioritic and andesitic dikes are present. Generally weak base metal sulfides found in depth.

Rocks which underlie the Hardshell group of claims are limestone, quartzite, conglomerate and intrusive rhyolite and felsite. In the mine the rhyolite and felsite are the dominant rocks, but there are also beds of quartzite and limestone.

The Hardshell Mine explores a shear zone that strikes NE and dips NW at angles varying from a few degrees to 35ΒΊ. The shear zone ranges from a few feet to 60 feet or more in width and the ore deposits occur rather irregularly in it but with a persistent vein along its footwall.

The material of the shear zone is greatly crushed quartzite, rhyolite, felsite, a persistent band of kaolinized material and the ore, consisting of lead carbonate and subordinate galena associated with iron and manganese oxides. The iron and manganese oxides are generally separate. In some places the manganous ore is 6 feet wide and fairly persistent but elsewhere it occurs as bunches and stringers and in nodular masses disseminated in kaolinized material. Oxidized lead ore is intimately associated with the manganese deposits.

Local structures include the Corral Canyon fault block with downthrow to the SW. Located on the N-S-trending American fault.

Workings include a 600 foot deep inclined shaft on the dip and drifts on several levels which extend about 200 feet East of the incline and about 75 feet West of it. Workings attain a vertical depth of 250 feet. Workings aggregate some 3,000 feet of openings. Worked from about 1896 through 1964. Produced some 35,000 tons of ore averaging about 6% Pb, 8 ounces Ag/ton, 0.5% Cu and minor Zn and Au; and about 1,000 tons of Mn ore and concentrate averaging about 40% Mn. Reserve has a refractory metallurgical problem due to Mn.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

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

26 valid minerals.

Detailed Mineral List:

β“˜ Anglesite
Formula: PbSO4
β“˜ 'Bisbeeite' ?
Formula: (Cu,Mg)SiO3 · nH2O
Habit: Fibrous; crystals orthorhombic
Colour: Blue
β“˜ Braunite
Formula: Mn2+Mn3+6(SiO4)O8
β“˜ Cerussite
Formula: PbCO3
β“˜ Cerussite var. Silver-bearing Cerussite
Formula: PbCO3 with Ag
β“˜ Chlorargyrite
Formula: AgCl
β“˜ Corkite
Formula: PbFe3(PO4)(SO4)(OH)6
β“˜ Cornubite
Formula: Cu5(AsO4)2(OH)4
β“˜ Descloizite
Formula: PbZn(VO4)(OH)
β“˜ Galena
Formula: PbS
β“˜ Gold
Formula: Au
β“˜ Gypsum
Formula: CaSO4 · 2H2O
β“˜ Gypsum var. Selenite
Formula: CaSO4 · 2H2O
β“˜ Hausmannite
Formula: Mn2+Mn3+2O4
Description: A constituent of the mnaganese ores.
β“˜ Hematite
Formula: Fe2O3
β“˜ Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
β“˜ Hydrozincite
Formula: Zn5(CO3)2(OH)6
β“˜ Kaolinite
Formula: Al2(Si2O5)(OH)4
Colour: Light brown, whitish
Description: On hanging wall side of deposit and from 8 to 30 feet wide.
β“˜ 'Limonite'
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
β“˜ 'Manganese Oxides'
β“˜ 'Manganese Oxides var. Manganese Dendrites'
β“˜ Manganite
Formula: Mn3+O(OH)
β“˜ Mimetite
Formula: Pb5(AsO4)3Cl
Habit: Micro-crystals
β“˜ Nsutite
Formula: (Mn4+,Mn2+)(O,OH)2
Description: Occurs with several other manganese oxides.
β“˜ Phosphohedyphane
Formula: Ca2Pb3(PO4)3Cl
β“˜ 'Psilomelane'
β“˜ Pyrolusite
Formula: Mn4+O2
β“˜ Pyromorphite
Formula: Pb5(PO4)3Cl
β“˜ Quartz
Formula: SiO2
β“˜ Quartz var. Chalcedony
Formula: SiO2
β“˜ 'Serpentine Subgroup'
Formula: D3[Si2O5](OH)4
β“˜ Smithsonite
Formula: ZnCO3
β“˜ Vanadinite
Formula: Pb5(VO4)3Cl
β“˜ Wulfenite
Formula: Pb(MoO4)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
β“˜Galena2.CD.10PbS
Group 3 - Halides
β“˜Chlorargyrite3.AA.15AgCl
Group 4 - Oxides and Hydroxides
β“˜Hausmannite4.BB.10Mn2+Mn3+2O4
β“˜Hematite4.CB.05Fe2O3
β“˜Quartz
var. Chalcedony
4.DA.05SiO2
β“˜4.DA.05SiO2
β“˜Pyrolusite4.DB.05Mn4+O2
β“˜Nsutite4.DB.15c(Mn4+,Mn2+)(O,OH)2
β“˜Manganite4.FD.15Mn3+O(OH)
Group 5 - Nitrates and Carbonates
β“˜Smithsonite5.AB.05ZnCO3
β“˜Cerussite5.AB.15PbCO3
β“˜var. Silver-bearing Cerussite5.AB.15PbCO3 with Ag
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
β“˜Hydrozincite5.BA.15Zn5(CO3)2(OH)6
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Anglesite7.AD.35PbSO4
β“˜Gypsum7.CD.40CaSO4 Β· 2H2O
β“˜var. Selenite7.CD.40CaSO4 Β· 2H2O
β“˜Wulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Cornubite8.BD.30Cu5(AsO4)2(OH)4
β“˜Descloizite8.BH.40PbZn(VO4)(OH)
β“˜Corkite8.BL.05PbFe3(PO4)(SO4)(OH)6
β“˜Vanadinite8.BN.05Pb5(VO4)3Cl
β“˜Phosphohedyphane8.BN.05Ca2Pb3(PO4)3Cl
β“˜Pyromorphite8.BN.05Pb5(PO4)3Cl
β“˜Mimetite8.BN.05Pb5(AsO4)3Cl
Group 9 - Silicates
β“˜Braunite9.AG.05Mn2+Mn3+6(SiO4)O8
β“˜Hemimorphite9.BD.10Zn4Si2O7(OH)2 Β· H2O
β“˜Kaolinite9.ED.05Al2(Si2O5)(OH)4
Unclassified
β“˜'Psilomelane'-
β“˜'Serpentine Subgroup'-D3[Si2O5](OH)4
β“˜'Bisbeeite' ?-(Cu,Mg)SiO3 Β· nH2O
β“˜'Manganese Oxides
var. Manganese Dendrites'
-
β“˜''-
β“˜'Limonite'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ CorkitePbFe3(PO4)(SO4)(OH)6
Hβ“˜ CornubiteCu5(AsO4)2(OH)4
Hβ“˜ DescloizitePbZn(VO4)(OH)
Hβ“˜ GypsumCaSO4 · 2H2O
Hβ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Hβ“˜ HydrozinciteZn5(CO3)2(OH)6
Hβ“˜ KaoliniteAl2(Si2O5)(OH)4
Hβ“˜ ManganiteMn3+O(OH)
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ Nsutite(Mn4+,Mn2+)(O,OH)2
Hβ“˜ Gypsum var. SeleniteCaSO4 · 2H2O
Hβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Hβ“˜ Bisbeeite(Cu,Mg)SiO3 · nH2O
CCarbon
Cβ“˜ CerussitePbCO3
Cβ“˜ HydrozinciteZn5(CO3)2(OH)6
Cβ“˜ MalachiteCu2(CO3)(OH)2
Cβ“˜ SmithsoniteZnCO3
Cβ“˜ Cerussite var. Silver-bearing CerussitePbCO3 with Ag
OOxygen
Oβ“˜ AnglesitePbSO4
Oβ“˜ BrauniteMn2+Mn63+(SiO4)O8
Oβ“˜ CerussitePbCO3
Oβ“˜ Quartz var. ChalcedonySiO2
Oβ“˜ CorkitePbFe3(PO4)(SO4)(OH)6
Oβ“˜ CornubiteCu5(AsO4)2(OH)4
Oβ“˜ DescloizitePbZn(VO4)(OH)
Oβ“˜ GypsumCaSO4 · 2H2O
Oβ“˜ HausmanniteMn2+Mn23+O4
Oβ“˜ HematiteFe2O3
Oβ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Oβ“˜ HydrozinciteZn5(CO3)2(OH)6
Oβ“˜ KaoliniteAl2(Si2O5)(OH)4
Oβ“˜ ManganiteMn3+O(OH)
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ MimetitePb5(AsO4)3Cl
Oβ“˜ Nsutite(Mn4+,Mn2+)(O,OH)2
Oβ“˜ PyrolusiteMn4+O2
Oβ“˜ PyromorphitePb5(PO4)3Cl
Oβ“˜ QuartzSiO2
Oβ“˜ SmithsoniteZnCO3
Oβ“˜ VanadinitePb5(VO4)3Cl
Oβ“˜ WulfenitePb(MoO4)
Oβ“˜ Gypsum var. SeleniteCaSO4 · 2H2O
Oβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Oβ“˜ Cerussite var. Silver-bearing CerussitePbCO3 with Ag
Oβ“˜ Bisbeeite(Cu,Mg)SiO3 · nH2O
Oβ“˜ PhosphohedyphaneCa2Pb3(PO4)3Cl
MgMagnesium
Mgβ“˜ Bisbeeite(Cu,Mg)SiO3 · nH2O
AlAluminium
Alβ“˜ KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Siβ“˜ BrauniteMn2+Mn63+(SiO4)O8
Siβ“˜ Quartz var. ChalcedonySiO2
Siβ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Siβ“˜ KaoliniteAl2(Si2O5)(OH)4
Siβ“˜ QuartzSiO2
Siβ“˜ Serpentine SubgroupD3[Si2O5](OH)4
Siβ“˜ Bisbeeite(Cu,Mg)SiO3 · nH2O
PPhosphorus
Pβ“˜ CorkitePbFe3(PO4)(SO4)(OH)6
Pβ“˜ PyromorphitePb5(PO4)3Cl
Pβ“˜ PhosphohedyphaneCa2Pb3(PO4)3Cl
SSulfur
Sβ“˜ AnglesitePbSO4
Sβ“˜ CorkitePbFe3(PO4)(SO4)(OH)6
Sβ“˜ GalenaPbS
Sβ“˜ GypsumCaSO4 · 2H2O
Sβ“˜ Gypsum var. SeleniteCaSO4 · 2H2O
ClChlorine
Clβ“˜ ChlorargyriteAgCl
Clβ“˜ MimetitePb5(AsO4)3Cl
Clβ“˜ PyromorphitePb5(PO4)3Cl
Clβ“˜ VanadinitePb5(VO4)3Cl
Clβ“˜ PhosphohedyphaneCa2Pb3(PO4)3Cl
CaCalcium
Caβ“˜ GypsumCaSO4 · 2H2O
Caβ“˜ Gypsum var. SeleniteCaSO4 · 2H2O
Caβ“˜ PhosphohedyphaneCa2Pb3(PO4)3Cl
VVanadium
Vβ“˜ DescloizitePbZn(VO4)(OH)
Vβ“˜ VanadinitePb5(VO4)3Cl
MnManganese
Mnβ“˜ BrauniteMn2+Mn63+(SiO4)O8
Mnβ“˜ HausmanniteMn2+Mn23+O4
Mnβ“˜ ManganiteMn3+O(OH)
Mnβ“˜ Nsutite(Mn4+,Mn2+)(O,OH)2
Mnβ“˜ PyrolusiteMn4+O2
FeIron
Feβ“˜ CorkitePbFe3(PO4)(SO4)(OH)6
Feβ“˜ HematiteFe2O3
CuCopper
Cuβ“˜ CornubiteCu5(AsO4)2(OH)4
Cuβ“˜ MalachiteCu2(CO3)(OH)2
Cuβ“˜ Bisbeeite(Cu,Mg)SiO3 · nH2O
ZnZinc
Znβ“˜ DescloizitePbZn(VO4)(OH)
Znβ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Znβ“˜ HydrozinciteZn5(CO3)2(OH)6
Znβ“˜ SmithsoniteZnCO3
AsArsenic
Asβ“˜ CornubiteCu5(AsO4)2(OH)4
Asβ“˜ MimetitePb5(AsO4)3Cl
MoMolybdenum
Moβ“˜ WulfenitePb(MoO4)
AgSilver
Agβ“˜ ChlorargyriteAgCl
Agβ“˜ Cerussite var. Silver-bearing CerussitePbCO3 with Ag
AuGold
Auβ“˜ GoldAu
PbLead
Pbβ“˜ AnglesitePbSO4
Pbβ“˜ CerussitePbCO3
Pbβ“˜ CorkitePbFe3(PO4)(SO4)(OH)6
Pbβ“˜ DescloizitePbZn(VO4)(OH)
Pbβ“˜ GalenaPbS
Pbβ“˜ MimetitePb5(AsO4)3Cl
Pbβ“˜ PyromorphitePb5(PO4)3Cl
Pbβ“˜ VanadinitePb5(VO4)3Cl
Pbβ“˜ WulfenitePb(MoO4)
Pbβ“˜ Cerussite var. Silver-bearing CerussitePbCO3 with Ag
Pbβ“˜ PhosphohedyphaneCa2Pb3(PO4)3Cl

Other Databases

Link to USGS MRDS:10103551

Localities in this Region

  • Arizona
    • Santa Cruz County

Other Regions, Features and Areas containing this locality

Mexico
North America
North America PlateTectonic Plate

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.

References

 
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