Republic Mine, Johnson Camp, Gunnison Copper Project, Cochise Mining District, Cochise County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Republic Mine | Mine |
| Johnson Camp | Village (Abolished) |
| Gunnison Copper Project | Project (Active) |
| Cochise Mining District | Mining District |
| Cochise County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
32° 5' 59'' North , 110° 3' 50'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Dragoon | 209 (2011) | 8.3km |
| Saint David | 1,699 (2011) | 25.9km |
| Benson | 4,888 (2017) | 26.2km |
| Willcox | 3,552 (2017) | 27.7km |
| Whetstone | 2,617 (2011) | 30.6km |
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 | 32km |
Other/historical names associated with this locality:
Republic Copper Co. property
A former small underground Cu-Zn-Ag-W-Pb-Au-Mo-Bi-Be mine located in East-central sec. 26, T.15S., R.22E, 5.5 miles NNW of Dragoon; on SE edge of the town of Johnson, 2 miles NE of the Primrose Mine, on private land. Produced 1882-1952. Owned in part, or at times, by the Black Prince Copper Co., Arizona Consolidated Mining Co., Arizona United Mining Co., Arizona United Development Co., and the Coronado Copper & Zinc Co.
Mineralization is sulfides in pyrometasomatic mantos and chimneys in garnetized, silicated and marmolized, faulted and fissured Cambrian Middle Member Abrigo Limestone. Ore control was faults cutting favorable beds, axes of shallow anticlines. The ore zone is 457.2 meters long, 121.92 meters wide, 91.44 meters depth to top, 274.32 meters depth to bottom, 12.19 meters thick, striking N50W, dipping 40NE, with a plunge of S600-85E 1-25. Assay data: 4-4.5% Cu, 0.5-0.75% oz/t Ag, unknown % Zn (pre-1940); 1.5-3% Cu, 5-10% Zn, 0.3 oz/t Ag to 0.1% W (post-1940).
Another ore body was 800 by 200-400 by 15-40 feet, perpendicular to bedding, localized along the axis of shallow anticline trending N10W. The clearest association of ore with a fold is where the main manto ore body lies along an anticlinal flexure between the 700 and 1300 levels. The main manto fold dies out a short distance above the 700 level but the ore body continues with the same trend almost to the surface.
Workings include extensive shaft workings. Workings total 6,4000 meters in length and 121.92 meters deep. The workings are comprised of drifts, crosscuts, stopes, winzes, and extensive shaft workings. A total of at least 600,000 tons of ore was produced from the early 1880's to recent times.
Other ore in minable grade was discovered but construction costs were prohibitive. Favorable beds on the hanging wall side of the Republic Fault have been thoroughly explored.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
13 valid minerals.
Detailed Mineral List:
| ⓘ Bornite Formula: Cu5FeS4 Description: Occurs locally. |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ 'Chlorite Group' |
| ⓘ Diopside Formula: CaMgSi2O6 Description: Abundant contact metamorphic silicate mineral in limestone. References: |
| ⓘ Galena Formula: PbS Description: Minor. |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 |
| ⓘ Molybdenite Formula: MoS2 |
| ⓘ Native Copper Formula: Cu Description: Trace amounts in oxidized ore. References: |
| ⓘ Orthoclase Formula: K(AlSi3O8) |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Scheelite Formula: Ca(WO4) |
| ⓘ Sphalerite Formula: ZnS |
| ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S Description: Occurs in small quartz veins. |
| ⓘ Zoisite Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) Description: Sparse in contact-metamorphosed rocks containing other calc-silicate minerals. |
| ⓘ Zoisite var. Thulite Formula: {Ca2}{Al,Mn3+3}(Si2O7)(SiO4)O(OH) Description: Occurs in vugs & as coatings on joint surfaces. References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
| Group 9 - Silicates | |||
| ⓘ | Zoisite var. Thulite | 9.BG.10 | {Ca2}{Al,Mn3+3}(Si2O7)(SiO4)O(OH) |
| ⓘ | 9.BG.10 | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) | |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Orthoclase | 9.FA.30 | K(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Zoisite var. Thulite | {Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH) |
| H | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Orthoclase | K(AlSi3O8) |
| O | ⓘ Scheelite | Ca(WO4) |
| O | ⓘ Zoisite var. Thulite | {Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH) |
| O | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Mg | Magnesium | |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Al | Aluminium | |
| Al | ⓘ Orthoclase | K(AlSi3O8) |
| Al | ⓘ Zoisite var. Thulite | {Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH) |
| Al | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Si | Silicon | |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Orthoclase | K(AlSi3O8) |
| Si | ⓘ Zoisite var. Thulite | {Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH) |
| Si | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| S | Sulfur | |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Molybdenite | MoS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| K | Potassium | |
| K | ⓘ Orthoclase | K(AlSi3O8) |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Ca | ⓘ Zoisite var. Thulite | {Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH) |
| Ca | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Mn | Manganese | |
| Mn | ⓘ Zoisite var. Thulite | {Ca2}{Al,Mn33+}(Si2O7)(SiO4)O(OH) |
| Fe | Iron | |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Native Copper | Cu |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| Sb | Antimony | |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10103755 |
|---|
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
- Little Dragoon MountainsMountain Range
- Cochise County
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