Greenback Mine (Bullion group; Garnet group; Vindicator Gold Mining Co. property; Golden King; Hinshaw property; Pinal shaft), Cathedral Rock area, Cimarron Mountains, Pinal County, Arizona, USAi
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Latitude & Longitude (WGS84):
32° 31' 3'' North , 112° 9' 48'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Kaka | 141 (2011) | 14.4km |
| Anegam | 151 (2011) | 20.3km |
| Santa Rosa | 628 (2011) | 24.4km |
| Vaiva Vo | 128 (2011) | 31.4km |
| Maish Vaya | 158 (2011) | 39.1km |
Mindat Locality ID:
62735
Long-form identifier:
mindat:1:2:62735:0
GUID (UUID V4):
48452ce5-276d-46a8-947f-4b68c90e22f3
A former underground Au-Ag-Cu mine located in sec. 33, T10S, R2E, about 2 miles S of Cathedral Rock, on the N slope of the Cimarron Mountains. Discovered 1895 and produced 1939-1940 prior to closure. Also known as / designated: Black Diamond group; Pinal Grande Mining Co. property; London group; Silver Queen group. Workings extend to secs. 29, 32 & 33. Additional claims were added to the original 10 located in 1916, including 17 claims in 1917, the Greenback group of 20 claims in 1918, and the Silver Queen group (Vindicator Gold Mining property) in 1921. Previous owners/operators include Humphrey (1916); Paul Hinshaw (1917-1919); the Pinal Grande Mining Co. (Paul Hinshaw) (1919-1924); Greenback Gold Mining Co. (Paul Hinshaw and Frank Royer) (1924-1926); Wesley Oates (1932); Frank M. Leonard (1932-?); and Ramon Andrade (1939-40).
Mineralization is a lens-shaped ore body hosted in Pinal Schis and in Tertiary volcanic rocks (dacite). The ore zone strikes N70E-N70W, dips 45-50S at 0.91 meters thick. Younger mineralization than in the Vekol District and the Copperosity Mine to the NE. Ore control was E-W-trending fault zones. An associated rock unit is dacite. Area structures include NW and NE-trending fault zones, E-W-trending fault zones and an E-W-trending fault zone through the mine. Two parallel NW-trending faults occur 1/3 mile SW of the mine.
Workings include the Pinal shaft (688 feet deep on a 50 degree incline), the Green Back shaft (100 feet deep on a 40 degree incline).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| ⓘ Gold Formula: Au |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 9 - Silicates | |||
| ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | Silicon | |
| Si | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Cu | Copper | |
| Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS MRDS: | 10109774 |
|---|
Other Regions, Features and Areas containing this locality
Mexico
- Sierra Madre OccidentalMountain Range
North America
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mazatzal DomainDomain
USA
- Arizona
- ⭔Tohono O'odham ReservationReservation
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References
