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Middlemarch Mine, Middle Pass Mining District, Cochise County, Arizona, USAi
Regional Level Types
Middlemarch MineMine
Middle Pass Mining DistrictMining District
Cochise CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
31° 52' 49'' North , 109° 56' 56'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Dragoon209 (2011)18.5km
Tombstone1,312 (2017)21.7km
Saint David1,699 (2011)25.2km
Sunizona281 (2011)27.9km
Elfrida459 (2011)32.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Sunsites Gem and Mineral ClubPearce, Arizona12km
Huachuca Mineral and Gem ClubSierra Vista, Arizona49km
Mindat Locality ID:
32798
Long-form identifier:
mindat:1:2:32798:2
GUID (UUID V4):
bdfbe185-8657-43fd-a06c-90c027cce4ad
Other/historical names associated with this locality:
Missouri Mine; Missouri shaft; Morning Glory shaft


A former small underground Cu-Zn-Ag-Au-Pb-Mo-W mine located in the center of sec. 12, T.18S., R.23E. Discovered 1895. First produced 1895. Owned at times, or in part, by the Middlemarch Copper Co. and the Arizona Middlemarch Copper Co.

Mineralization is copper, zinc, and minor lead carbonates and sulfides in an oval-shaped chimney orebody associated with lime silicates in a fault zone cutting Paleozoic and Cretaceous limestone beds. The host rock unit is the Bisbee Group, and an associated rock unit is the Stronghold Granite. Ore control was favorable beds intersected by faults and a granite intrusion forming skarns in limestone. Alteration was skarn formation; epidote and phlogopite-chlorite alteration at the faults and more intense near the faults.

Local structures include the hinge zone of a NW-trending fold with the west limb cut off by SW dipping reverse fault (Red Ant Fault), which juxtaposes Precambrian Cochise Peak Quartz Monzonite against Bisbee Group. A NW-trending rhyolite dike exists to the NE.

Workings include an adit and shaft. Some 5,000 or more tons of ore were produced intermittently from the early 1900s to the 1950s. Missionary shaft is one of the levels of the Middlemarch Mine. This shaft is now completely flooded and underwater.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

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

35 valid minerals.

Detailed Mineral List:

β“˜ Andradite
Formula: Ca3Fe3+2(SiO4)3
β“˜ Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜ Azurite
Formula: Cu3(CO3)2(OH)2
β“˜ Calcite
Formula: CaCO3
β“˜ Cerussite
Formula: PbCO3
β“˜ Chalcanthite
Formula: CuSO4 · 5H2O
β“˜ Chalcocite
Formula: Cu2S
β“˜ Chalcomenite
Formula: CuSeO3 · 2H2O
Habit: Orthorhombic crystals in parallel aggregates, bowties & radiating clusters.
Description: Isolated pods in a skarn with associated species; crystals on quartz & garnet.
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ Chamosite
Formula: (Fe2+)5Al(Si,Al)4O10(OH,O)8
β“˜ 'Chlorite Group'
β“˜ Clinozoisite
Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
β“˜ Copper
Formula: Cu
β“˜ Covellite
Formula: CuS
β“˜ Cuprite
Formula: Cu2O
β“˜ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜ Galena
Formula: PbS
β“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
Description: Occurs as garnet-wollastonite schist.
β“˜ Goethite
Formula: Ξ±-Fe3+O(OH)
β“˜ Grossular
Formula: Ca3Al2(SiO4)3
β“˜ Gypsum
Formula: CaSO4 · 2H2O
β“˜ Hematite
Formula: Fe2O3
β“˜ Hydrozincite
Formula: Zn5(CO3)2(OH)6
β“˜ 'Iridescent coating'
β“˜ Jarosite
Formula: KFe3+3(SO4)2(OH)6
β“˜ 'Limonite'
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
β“˜ 'Manganese Oxides'
β“˜ 'Manganese Oxides var. Manganese Dendrites'
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
β“˜ Prehnite
Formula: Ca2Al2Si3O10(OH)2
Description: Occurs as sparse veinlets in garnet-wollastonite schist.
β“˜ Pyrite
Formula: FeS2
β“˜ Pyrrhotite
Formula: Fe1-xS
β“˜ Quartz
Formula: SiO2
β“˜ Rosasite
Formula: (Cu,Zn)2(CO3)(OH)2
β“˜ Scheelite
Formula: Ca(WO4)
β“˜ Serpierite
Formula: Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O
β“˜ Smithsonite
Formula: ZnCO3
β“˜ Sphalerite
Formula: ZnS
β“˜ Wollastonite
Formula: Ca3(Si3O9)
Description: Occurs as garnet-wollastonite schist.

Gallery:

(CaxMgyFez)(Mgy1Fez1)Si2O6β“˜ Augite
Cu3(CO3)2(OH)2β“˜ Azurite
CuSO4 · 5H2Oβ“˜ Chalcanthite
(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)β“˜ Epidote
Ξ±-Fe3+O(OH)β“˜ Goethite
CaSO4 · 2H2Oβ“˜ Gypsum
Cu2(CO3)(OH)2β“˜ Malachite
(Cu,Zn)2(CO3)(OH)2β“˜ Rosasite
Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2Oβ“˜ Serpierite

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
β“˜Chalcocite2.BA.05Cu2S
β“˜Covellite2.CA.05aCuS
β“˜Sphalerite2.CB.05aZnS
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Pyrrhotite2.CC.10Fe1-xS
β“˜Galena2.CD.10PbS
β“˜Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
β“˜Goethite4.00.Ξ±-Fe3+O(OH)
β“˜Cuprite4.AA.10Cu2O
β“˜Hematite4.CB.05Fe2O3
β“˜Quartz4.DA.05SiO2
β“˜Chalcomenite4.JH.05CuSeO3 Β· 2H2O
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
β“˜Smithsonite5.AB.05ZnCO3
β“˜Cerussite5.AB.15PbCO3
β“˜Azurite5.BA.05Cu3(CO3)2(OH)2
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
β“˜Rosasite5.BA.10(Cu,Zn)2(CO3)(OH)2
β“˜Hydrozincite5.BA.15Zn5(CO3)2(OH)6
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Jarosite7.BC.10KFe3+3(SO4)2(OH)6
β“˜Chalcanthite7.CB.20CuSO4 Β· 5H2O
β“˜Gypsum7.CD.40CaSO4 Β· 2H2O
β“˜Serpierite7.DD.30Ca(Cu,Zn)4(SO4)2(OH)6 Β· 3H2O
β“˜Scheelite7.GA.05Ca(WO4)
Group 9 - Silicates
β“˜Andradite9.AD.25Ca3Fe3+2(SiO4)3
β“˜Grossular9.AD.25Ca3Al2(SiO4)3
β“˜Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜Clinozoisite9.BG.05a(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
β“˜Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
β“˜Wollastonite9.DG.05Ca3(Si3O9)
β“˜Prehnite9.DP.20Ca2Al2Si3O10(OH)2
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
β“˜Chamosite9.EC.55(Fe2+)5Al(Si,Al)4O10(OH,O)8
Unclassified
β“˜'Limonite'-
β“˜'Chlorite Group'-
β“˜'Garnet Group'-X3Z2(SiO4)3
β“˜'Manganese Oxides
var. Manganese Dendrites'
-
β“˜''-
β“˜'Iridescent coating'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ AzuriteCu3(CO3)2(OH)2
Hβ“˜ ChalcomeniteCuSeO3 · 2H2O
Hβ“˜ ChalcanthiteCuSO4 · 5H2O
Hβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Hβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Hβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hβ“˜ GoethiteΞ±-Fe3+O(OH)
Hβ“˜ GypsumCaSO4 · 2H2O
Hβ“˜ HydrozinciteZn5(CO3)2(OH)6
Hβ“˜ JarositeKFe33+(SO4)2(OH)6
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Hβ“˜ PrehniteCa2Al2Si3O10(OH)2
Hβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
Hβ“˜ SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Hβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
Cβ“˜ AzuriteCu3(CO3)2(OH)2
Cβ“˜ CalciteCaCO3
Cβ“˜ CerussitePbCO3
Cβ“˜ HydrozinciteZn5(CO3)2(OH)6
Cβ“˜ MalachiteCu2(CO3)(OH)2
Cβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
Cβ“˜ SmithsoniteZnCO3
OOxygen
Oβ“˜ AndraditeCa3Fe23+(SiO4)3
Oβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Oβ“˜ AzuriteCu3(CO3)2(OH)2
Oβ“˜ CalciteCaCO3
Oβ“˜ CerussitePbCO3
Oβ“˜ ChalcomeniteCuSeO3 · 2H2O
Oβ“˜ ChalcanthiteCuSO4 · 5H2O
Oβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Oβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Oβ“˜ CupriteCu2O
Oβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oβ“˜ GoethiteΞ±-Fe3+O(OH)
Oβ“˜ GrossularCa3Al2(SiO4)3
Oβ“˜ GypsumCaSO4 · 2H2O
Oβ“˜ HematiteFe2O3
Oβ“˜ HydrozinciteZn5(CO3)2(OH)6
Oβ“˜ JarositeKFe33+(SO4)2(OH)6
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Oβ“˜ PrehniteCa2Al2Si3O10(OH)2
Oβ“˜ QuartzSiO2
Oβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
Oβ“˜ ScheeliteCa(WO4)
Oβ“˜ SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Oβ“˜ SmithsoniteZnCO3
Oβ“˜ WollastoniteCa3(Si3O9)
Oβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oβ“˜ Garnet GroupX3Z2(SiO4)3
MgMagnesium
Mgβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mgβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
AlAluminium
Alβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Alβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Alβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alβ“˜ GrossularCa3Al2(SiO4)3
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Alβ“˜ PrehniteCa2Al2Si3O10(OH)2
Alβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siβ“˜ AndraditeCa3Fe23+(SiO4)3
Siβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Siβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Siβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Siβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siβ“˜ GrossularCa3Al2(SiO4)3
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Siβ“˜ PrehniteCa2Al2Si3O10(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ WollastoniteCa3(Si3O9)
Siβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siβ“˜ Garnet GroupX3Z2(SiO4)3
SSulfur
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ ChalcanthiteCuSO4 · 5H2O
Sβ“˜ ChalcociteCu2S
Sβ“˜ CovelliteCuS
Sβ“˜ GalenaPbS
Sβ“˜ GypsumCaSO4 · 2H2O
Sβ“˜ JarositeKFe33+(SO4)2(OH)6
Sβ“˜ PyriteFeS2
Sβ“˜ PyrrhotiteFe1-xS
Sβ“˜ SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Sβ“˜ SphaleriteZnS
KPotassium
Kβ“˜ JarositeKFe33+(SO4)2(OH)6
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Kβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caβ“˜ AndraditeCa3Fe23+(SiO4)3
Caβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Caβ“˜ CalciteCaCO3
Caβ“˜ Clinozoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Caβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caβ“˜ GrossularCa3Al2(SiO4)3
Caβ“˜ GypsumCaSO4 · 2H2O
Caβ“˜ PrehniteCa2Al2Si3O10(OH)2
Caβ“˜ ScheeliteCa(WO4)
Caβ“˜ SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Caβ“˜ WollastoniteCa3(Si3O9)
FeIron
Feβ“˜ AndraditeCa3Fe23+(SiO4)3
Feβ“˜ Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ Chamosite(Fe2+)5Al(Si,Al)4O10(OH,O)8
Feβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feβ“˜ GoethiteΞ±-Fe3+O(OH)
Feβ“˜ HematiteFe2O3
Feβ“˜ JarositeKFe33+(SO4)2(OH)6
Feβ“˜ PyriteFeS2
Feβ“˜ PyrrhotiteFe1-xS
CuCopper
Cuβ“˜ AzuriteCu3(CO3)2(OH)2
Cuβ“˜ ChalcomeniteCuSeO3 · 2H2O
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ ChalcanthiteCuSO4 · 5H2O
Cuβ“˜ ChalcociteCu2S
Cuβ“˜ CovelliteCuS
Cuβ“˜ CupriteCu2O
Cuβ“˜ CopperCu
Cuβ“˜ MalachiteCu2(CO3)(OH)2
Cuβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
Cuβ“˜ SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
ZnZinc
Znβ“˜ HydrozinciteZn5(CO3)2(OH)6
Znβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
Znβ“˜ SerpieriteCa(Cu,Zn)4(SO4)2(OH)6 · 3H2O
Znβ“˜ SmithsoniteZnCO3
Znβ“˜ SphaleriteZnS
SeSelenium
Seβ“˜ ChalcomeniteCuSeO3 · 2H2O
WTungsten
Wβ“˜ ScheeliteCa(WO4)
PbLead
Pbβ“˜ CerussitePbCO3
Pbβ“˜ GalenaPbS

Other Databases

Link to USGS MRDS:10037134

Mindat Articles

Middlemarch Mine, Dragoon Mountains, Arizona by Rolf Luetcke


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