Middlemarch Mine, Middle Pass Mining District, Cochise County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Middlemarch Mine | Mine |
| Middle Pass Mining District | Mining District |
| Cochise County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
31° 52' 49'' North , 109° 56' 56'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Dragoon | 209 (2011) | 18.5km |
| Tombstone | 1,312 (2017) | 21.7km |
| Saint David | 1,699 (2011) | 25.2km |
| Sunizona | 281 (2011) | 27.9km |
| Elfrida | 459 (2011) | 32.9km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Sunsites Gem and Mineral Club | Pearce, Arizona | 12km |
| Huachuca Mineral and Gem Club | Sierra Vista, Arizona | 49km |
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 ElementsMineral List
Mineral list contains entries from the region specified including sub-localities35 valid minerals.
Detailed Mineral List:
| ⓘ Andradite Formula: Ca3Fe3+2(SiO4)3 |
| ⓘ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Cerussite Formula: PbCO3 References: |
| ⓘ Chalcanthite Formula: CuSO4 · 5H2O |
| ⓘ Chalcocite Formula: Cu2S |
| ⓘ Chalcomenite Formula: CuSeO3 · 2H2O Locality: Missionary shaft, Middlemarch Mine, Middle Pass Mining District, Cochise County, Arizona, USA Habit: Orthorhombic crystals in parallel aggregates, bowties & radiating clusters. Description: Isolated pods in a skarn with associated species; crystals on quartz & garnet. |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Chamosite Formula: (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 References: |
| ⓘ 'Chlorite Group' |
| ⓘ Clinozoisite Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) References: |
| ⓘ Covellite Formula: CuS |
| ⓘ Cuprite Formula: Cu2O References: |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ Galena Formula: PbS |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 Localities: Description: Occurs as garnet-wollastonite schist. |
| ⓘ Goethite Formula: Fe3+O(OH) |
| ⓘ Grossular Formula: Ca3Al2(SiO4)3 |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ Hematite Formula: Fe2O3 References: |
| ⓘ Hydrozincite Formula: Zn5(CO3)2(OH)6 References: |
| ⓘ 'Iridescent coating' References: |
| ⓘ Jarosite Formula: KFe3+3(SO4)2(OH)6 References: |
| ⓘ 'Limonite' References: |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ 'Manganese Oxides' References: |
| ⓘ 'Manganese Oxides var. Manganese Dendrites' References: |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 References: |
| ⓘ Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 References: |
| ⓘ Native Copper Formula: Cu References: |
| ⓘ Phlogopite Formula: KMg3(AlSi3O10)(OH)2 |
| ⓘ Prehnite Formula: Ca2Al2Si3O10(OH)2 Description: Occurs as sparse veinlets in garnet-wollastonite schist. |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyrrhotite Formula: Fe1-xS |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Rosasite Formula: (Cu,Zn)2(CO3)(OH)2 References: |
| ⓘ Scheelite Formula: Ca(WO4) |
| ⓘ Serpierite Formula: Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
| ⓘ Smithsonite Formula: ZnCO3 References: |
| ⓘ Sphalerite Formula: ZnS |
| ⓘ Wollastonite Formula: Ca3(Si3O9) Description: Occurs as garnet-wollastonite schist. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcocite | 2.BA.05 | Cu2S |
| ⓘ | Covellite | 2.CA.05a | CuS |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrrhotite | 2.CC.10 | Fe1-xS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Chalcomenite | 4.JH.05 | CuSeO3 · 2H2O |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Smithsonite | 5.AB.05 | ZnCO3 |
| ⓘ | Cerussite | 5.AB.15 | PbCO3 |
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| ⓘ | Rosasite | 5.BA.10 | (Cu,Zn)2(CO3)(OH)2 |
| ⓘ | Hydrozincite | 5.BA.15 | Zn5(CO3)2(OH)6 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Jarosite | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
| ⓘ | Chalcanthite | 7.CB.20 | CuSO4 · 5H2O |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| ⓘ | Serpierite | 7.DD.30 | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
| Group 9 - Silicates | |||
| ⓘ | Andradite | 9.AD.25 | Ca3Fe3+2(SiO4)3 |
| ⓘ | Grossular | 9.AD.25 | Ca3Al2(SiO4)3 |
| ⓘ | Clinozoisite | 9.BG.05a | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | Wollastonite | 9.DG.05 | Ca3(Si3O9) |
| ⓘ | Prehnite | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
| ⓘ | Chamosite | 9.EC.55 | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
| ⓘ | 'Manganese Oxides var. Manganese Dendrites' | - | |
| ⓘ | '' | - | |
| ⓘ | 'Iridescent coating' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Chalcomenite | CuSeO3 · 2H2O |
| H | ⓘ Chalcanthite | CuSO4 · 5H2O |
| H | ⓘ Chamosite | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| H | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| H | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| H | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| H | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| H | ⓘ Serpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
| H | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| C | Carbon | |
| C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Cerussite | PbCO3 |
| C | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| C | ⓘ Smithsonite | ZnCO3 |
| O | Oxygen | |
| O | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Cerussite | PbCO3 |
| O | ⓘ Chalcomenite | CuSeO3 · 2H2O |
| O | ⓘ Chalcanthite | CuSO4 · 5H2O |
| O | ⓘ Chamosite | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| O | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Grossular | Ca3Al2(SiO4)3 |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| O | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| O | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| O | ⓘ Scheelite | Ca(WO4) |
| O | ⓘ Serpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
| O | ⓘ Smithsonite | ZnCO3 |
| O | ⓘ Wollastonite | Ca3(Si3O9) |
| O | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Mg | Magnesium | |
| Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | ⓘ Chamosite | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| Mg | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Chamosite | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| Al | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Al | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Al | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | ⓘ Chamosite | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| Si | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| Si | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Wollastonite | Ca3(Si3O9) |
| Si | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Chalcanthite | CuSO4 · 5H2O |
| S | ⓘ Chalcocite | Cu2S |
| S | ⓘ Covellite | CuS |
| S | ⓘ Galena | PbS |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Pyrrhotite | Fe1-xS |
| S | ⓘ Serpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
| S | ⓘ Sphalerite | ZnS |
| K | Potassium | |
| K | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Phlogopite | KMg3(AlSi3O10)(OH)2 |
| K | ⓘ Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Clinozoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Ca | ⓘ Serpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
| Ca | ⓘ Wollastonite | Ca3(Si3O9) |
| Fe | Iron | |
| Fe | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
| Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Chamosite | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Pyrrhotite | Fe1-xS |
| Cu | Copper | |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Chalcomenite | CuSeO3 · 2H2O |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Chalcanthite | CuSO4 · 5H2O |
| Cu | ⓘ Chalcocite | Cu2S |
| Cu | ⓘ Covellite | CuS |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Native Copper | Cu |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| Cu | ⓘ Serpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
| Zn | Zinc | |
| Zn | ⓘ Hydrozincite | Zn5(CO3)2(OH)6 |
| Zn | ⓘ Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| Zn | ⓘ Serpierite | Ca(Cu,Zn)4(SO4)2(OH)6 · 3H2O |
| Zn | ⓘ Smithsonite | ZnCO3 |
| Zn | ⓘ Sphalerite | ZnS |
| Se | Selenium | |
| Se | ⓘ Chalcomenite | CuSeO3 · 2H2O |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
| Pb | Lead | |
| Pb | ⓘ Cerussite | PbCO3 |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10037134 |
|---|
Mindat Articles
Middlemarch Mine, Dragoon Mountains, Arizona by Rolf LuetckeLocalities in this Region
- Arizona
- Cochise County
- Middle Pass Mining District
- Middlemarch Mine
- Middle Pass Mining District
- Cochise County
Other Regions, Features and Areas containing this locality
Mexico
- Sierra Madre OccidentalMountain Range
North AmericaContinent
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mazatzal DomainDomain
- Pedregosa BasinBasin
- Southern Basin and RangeWide Rift
USA
- Arizona
- Cochise County
- Dragoon MountainsMountain Range
- Cochise County
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0040030063
Middlemarch Mine, Middle Pass Mining District, Cochise County, Arizona, USA