Senecia Mine, Dragoon District (Golden Rule District), Cochise County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Senecia Mine | Mine |
| Dragoon District (Golden Rule District) | Mining District |
| Cochise County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
31° 58' 3'' North , 109° 59' 3'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Dragoon | 209 (2011) | 8.5km |
| Saint David | 1,699 (2011) | 22.8km |
| Benson | 4,888 (2017) | 29.2km |
| Tombstone | 1,312 (2017) | 29.4km |
| Sunizona | 281 (2011) | 32.6km |
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 | 17km |
Other/historical names associated with this locality:
Senika Mine; Seneca Mine; Lewis group
A former small surface and underground Cu-Zn-Pb-Ag (Cd) mine located in the SE ¼ sec. 10, T.17S., R.23E., on the northeastern margin of the Dragoon Mountains, 9 miles NW of Pearce and approximately ¾ mile N of Mt Glenn. Discovered 1916. Produced 1942-1943. Owned by the Le Roy Mines Co. Operated by Skinner & Lewis.
Mineralization is sulfides in irregular masses in brecciated wall rock in a vein structure in metamorphosed Naco Limestone.
Prevailing rock consists of metamorphosed siliceous Naco limetone which, less than ½ mile father south, is intruded by the Stronghold Granite. The workings are on the gently eastward-dipping flank of a low anticlinal roll in the limestone.
Local structures include closely folded rocks, thrusts, deep reverse faults with superimposed oligocene metamorphism; complex Tertiary faulting of Paleozoic and Cretaceous sediments; and Tertiary intrusives.
The vein strikes south and dips 20º to 30ºE., and is intersected by a tight barren fracture along the back of the adit. Much of the vein is thin and weakly mineralized. It becomes 1 to 5 feret thick where intersected by zones of inconspicuous northeast fissures.
Workings include an adit extending S.30ºW., with some small stopes and short raises; and a shaft of undertermined depth. workings. About 248 tons of ore were shipped in 1942-1943, containing 25% Zn, 5% Pb, and 1.5 oz. Ag/T.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10046201 |
|---|
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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