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Centroid Mine group, Cunningham Pass Mining District, La Paz County, Arizona, USAi
Regional Level Types
Centroid Mine groupGroup of Mines
Cunningham Pass Mining DistrictMining District
La Paz CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
33° 56' 47'' North , 113° 33' 18'' West
Latitude & Longitude (decimal):
33.94642,-113.55521
GRN:
N23W68
Type:
Group of Mines
Köppen climate type:
BWh : Hot deserts climate
Nearest Settlements:
PlacePopulationDistance
Wenden728 (2011)13.8km
Salome1,530 (2011)19.2km
Vicksburg597 (2011)28.9km
Utting126 (2011)32.8km
Aguila798 (2011)35.1km
Mindat Locality ID:
33428
Long-form identifier:
mindat:1:2:33428:3
GUID (UUID V4):
0
Other/historical names associated with this locality:
Centroid Mine; Centroid Consolidated Mine; Robinson group; Harris group; Copper Hill Mine; Desert Mine; Black Reef Mine


A former surface and underground Cu-Au-Ag-Fe mine group located in the W½ (SW¼), sec. 18, T7N, R12W (Salome 15 minute topo map), on land of unknown status. Owned/opereated at times, or in part, by the Desert Mining & Development Co.; Black Reef Copper Co.; Desert Mining Co.; Consolidated Arizona Mines; Consolidated Mines Syndicate; Centroid Consolidated Mines; and Herbert. Owned and operated by Mr. Harris of Arizona; and, by Mr. Snyder (1949).

Mineralization is copper sulfides and secondary ores with quartz, hematite, siderite and wall rock breccia, in lenses and pods in strong, lensing, iron-rich, NW-striking veins along mineralized faults and shear zones cutting the Precambrian metamorphics, intruded by later granitic and diorite dikes. The wall rocks are chloritized. Strong leaching, oxidation, and enrichment occurred in the upper part of the veins.

Workings include a shaft, tunnels and open cut. This mine was prospected in the late 1800's and early 1900's, but was mined, mainly and sporadically, from about 1916 to 1949. Total production would be some 410 tons of ore averaging about 2.4% Cu, 0.38 oz. Au/T and 0.5 oz. Ag/T.

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


7 valid minerals.

Detailed Mineral List:

ⓘ Bornite
Formula: Cu5FeS4
ⓘ Chalcocite
Formula: Cu2S
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘ Cuprite
Formula: Cu2O
ⓘ Hematite
Formula: Fe2O3
ⓘ Siderite
Formula: FeCO3

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘChalcopyrite2.CB.10aCuFeS2
Group 4 - Oxides and Hydroxides
ⓘCuprite4.AA.10Cu2O
ⓘHematite4.CB.05Fe2O3
Group 5 - Nitrates and Carbonates
ⓘSiderite5.AB.05FeCO3
Group 9 - Silicates
ⓘChrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1

List of minerals for each chemical element

HHydrogen
Hⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
CCarbon
Cⓘ SideriteFeCO3
OOxygen
Oⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oⓘ CupriteCu2O
Oⓘ HematiteFe2O3
Oⓘ SideriteFeCO3
AlAluminium
Alⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
SiSilicon
Siⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
SSulfur
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ ChalcociteCu2S
FeIron
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ HematiteFe2O3
Feⓘ SideriteFeCO3
CuCopper
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ ChalcociteCu2S
Cuⓘ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuⓘ CupriteCu2O

Other Databases

GeoNames ID:5289188
Link to USGS MRDS:10210608

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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

Keith, Stanton B. (1978) Index of Mining Properties in Yuma County, Arizona. University of Arizona Bulletin 192. Bureau of Geology and Mineral Technology 189pp. p.143 - Table 4
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