Tranquility Mine, Contention-Grand Central Mine group, Tombstone Mining District, Cochise County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Tranquility Mine | Mine |
| Contention-Grand Central Mine group | Group of Mines |
| Tombstone Mining District | Mining District |
| Cochise County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
31° 42' 28'' North , 110° 3' 42'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Tombstone | 1,312 (2017) | 0.8km |
| Saint David | 1,699 (2011) | 26.1km |
| Whetstone | 2,617 (2017) | 26.3km |
| Huachuca City | 1,755 (2017) | 27.2km |
| Sierra Vista | 43,355 (2017) | 28.5km |
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 |
|---|---|---|
| Huachuca Mineral and Gem Club | Sierra Vista, Arizona | 29km |
| Sunsites Gem and Mineral Club | Pearce, Arizona | 32km |
Other/historical names associated with this locality:
Tranquility Shaft
A former small underground Ag-Au-Pb-Cu-Zn mine located in T.20S., R.22E, on private land. Owned at times, or in part, by the Western Mining Co., Grand Central Mining Co., Tombstone Mill & Mining Co., Head Center Co., Head Center & Tranquility Co., Contention Mining Co., Tombstone Consolidated Mines Co., Bunker Hill Mines Co., and the Tombstone Development Co.
Mineralization is oxidized argentiferous and auriferous galena and minor copper and zinc ores in large, rich orebodies in faulted and fractured segments of a large dike, and in brecciated footwall zones of the dike. Ore was also found in replacements of Cretaceous Bisbee Group limestone beds where they were intersected by "northeast" fissures. The host rock unit is the Bisbee Group. Ore control was NE-trending fissures.
Local structures include the Tombstone Basin, with post-mineralization tilting to the NNE.
Workings included extensive shaft. The shaft adjoins the Empire shaft to the north and the Silver Thread shaft to the northeast. There were 3 levels from the shaft, with the 1st level being the most extensive. One of the earliest and most productive mines of the district. Over $10,000,000 was produced prior to 1886 and several hundred thousand tons were produced from the 1880s to the early 1900s. There was some sporadic production up to 1929. Production was included under the Tombstone group.
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
3 valid minerals.
Detailed Mineral List:
| ⓘ Galena Formula: PbS |
| ⓘ Galena var. Silver-bearing Galena Formula: PbS with Ag |
| ⓘ Linarite Formula: PbCu(SO4)(OH)2 |
| ⓘ Native Gold Formula: Au |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | var. Silver-bearing Galena | 2.CD.10 | PbS with Ag |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Linarite | 7.BC.65 | PbCu(SO4)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Linarite | PbCu(SO4)(OH)2 |
| O | Oxygen | |
| O | ⓘ Linarite | PbCu(SO4)(OH)2 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Linarite | PbCu(SO4)(OH)2 |
| S | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Cu | Copper | |
| Cu | ⓘ Linarite | PbCu(SO4)(OH)2 |
| Ag | Silver | |
| Ag | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Linarite | PbCu(SO4)(OH)2 |
| Pb | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
Other Databases
| Link to USGS MRDS: | 10027014 |
|---|
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
- Tombstone HillsGroup of Hills
- Cochise County
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Tranquility Mine, Contention-Grand Central Mine group, Tombstone Mining District, Cochise County, Arizona, USA