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Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Saint Theresa Mine (St. Theresa Mine; Golden Eagle Mine; Gold Charm Mine; Double Eagle Gold Mines property; Gold Leaf vein), Groom Creek, Groom Creek Mining District, Bradshaw Mountains (Bradshaw Range), Yavapai County, Arizona, USAi
Regional Level Types
Saint Theresa Mine (St. Theresa Mine; Golden Eagle Mine; Gold Charm Mine; Double Eagle Gold Mines property; Gold Leaf vein)Mine
Groom CreekUnincorporated Community
Groom Creek Mining DistrictMining District
Bradshaw Mountains (Bradshaw Range)Mountain Range
Yavapai CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
34° 25' 38'' North , 112° 26' 41'' West
Latitude & Longitude (decimal):
34.42722,-112.44473
GeoHash:
G#: 9w05c7230
GRN:
N23W67
Type:
Mine
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Prescott41,899 (2017)12.7km
Wilhoit868 (2011)13.0km
Mayer1,497 (2011)19.4km
Dewey-Humboldt3,894 (2011)21.8km
Prescott Valley42,197 (2017)23.5km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Prescott Gem & Mineral ClubPrescott Valley, Arizona24km
Black Canyon City Rock ClubBlack Canyon City, Arizona48km
Mindat Locality ID:
63246
Long-form identifier:
mindat:1:2:63246:8
GUID (UUID V4):
0


A former underground Au-Ag-Cu mine located in the SE¼ sec. 16, T.15N., R.1E. (Prescott Valley N 7.5 minute topo map). Produced 1934-1949. Claims extend into secs. 9, 10, 15, 17 and 11.

Mineralization is a vein deposit with a tabular ore body. Ore control was faulting and shearing. Ore concentration was oxidation and enrichment at near-surface. Alteration was minor. An associated rock unit is the Government Canyon Granodiorite, which is rather massive.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


1 valid mineral.

Detailed Mineral List:

ⓘ Pyrite
Formula: FeS2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2

List of minerals for each chemical element

SSulfur
Sⓘ PyriteFeS2
FeIron
Feⓘ PyriteFeS2

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

USGS GQ map GQ-997.
U.S. Bureau of Mines - Arizona Bureau of Geology and Mineral Technology file data.
USGS Groom Creek Quadrangle map.
Arizona Department of Mineral Resources Double Eagle Gold Mines file.
U.S. Bureau of Land Management Arizona Mining Claims Lead File #18949.
MRDS database Dep. ID #10048239, MRDS ID #M800346 (M800348 [?]); and, Dep. ID #10186253, MAS ID #0040250809.
Wilson, E.D., Cunningham, J.B., and Butler, G.M. (1934), Arizona Lode Gold Mines and Gold Mining (revised 1967), Arizona Bureau of Mines Bull. 137: 50.
Niemuth, Nyal J., Phillips, Ken A. (1992, July) Copper Oxide Resources. Open-file Report 92-10. Arizona Department of Mines and Mineral Resourcesp.17 - Table 1
(2024) Peabody GNIS Service, Yale Peabody Museum.
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