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Midway Mining District, Buckskin Mountains, La Paz County, Arizona, USAi
Regional Level Types
Midway Mining DistrictMining District
Buckskin MountainsMountain Range
La Paz CountyCounty
ArizonaState
USACountry

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Latitude & Longitude:
33° North , 113° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~101km
Mindat Locality ID:
33571
Long-form identifier:
mindat:1:2:33571:4
GUID (UUID V4):
469497e9-de55-430b-b9fc-28c0ec0acf82


Ref.: Bancroft, H. (1911), Reconnaissance of the ore deposits in northern Yuma County, Arizona, USGS Bull. 451: 120-122.

Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch Bull. 192, Index of Mining Properties in Yuma County, Arizona: 162 (Table 4).

Arizona Bureau of Mines file data.

A Cu-Au-Ag-Fe-Ba-F-marble mining district located in T.8-9N., R.15-16W., at the South-central edge of the Buckskin Mountains.

Mineralization consists of: (1) Spotty, oxidized, copper mineralization with minor sulfides in Precambrian schist and Mesozoic sediments or as limestone replacements, usually associated with hematite or with quartz, barite, and fluorite along fracture or fault zones; and, (2) Varicolored marble, probably metamorphosed Paleozoic or Mesozoic limestone.

Workings include several small prospects and mines worked intermittently since the early 1900's. Total production would be some 212 tons of ore containing about 4.5 tons of copper, 45 oz. gold, and 35 oz. of silver.

Mineralization is gold

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Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

10 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Baryte
Formula: BaSO4
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ 'Chlorite Group'
β“˜ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
β“˜ Dioptase
Formula: CuSiO3 · H2O
Description: Occurs in small quantities.
β“˜ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜ Fluorite
Formula: CaF2
β“˜ Gold
Formula: Au
β“˜ Hematite
Formula: Fe2O3
β“˜ Magnetite
Formula: Fe2+Fe3+2O4
β“˜ Quartz
Formula: SiO2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
β“˜Chalcopyrite2.CB.10aCuFeS2
Group 3 - Halides
β“˜Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
β“˜Magnetite4.BB.05Fe2+Fe3+2O4
β“˜Hematite4.CB.05Fe2O3
β“˜Quartz4.DA.05SiO2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Baryte7.AD.35BaSO4
Group 9 - Silicates
β“˜Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜Dioptase9.CJ.30CuSiO3 Β· H2O
β“˜Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 Β· nH2O, x < 1
Unclassified
β“˜'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hβ“˜ DioptaseCuSiO3 · H2O
Hβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
OOxygen
Oβ“˜ BaryteBaSO4
Oβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oβ“˜ DioptaseCuSiO3 · H2O
Oβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oβ“˜ HematiteFe2O3
Oβ“˜ MagnetiteFe2+Fe23+O4
Oβ“˜ QuartzSiO2
FFluorine
Fβ“˜ FluoriteCaF2
AlAluminium
Alβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiSilicon
Siβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siβ“˜ DioptaseCuSiO3 · H2O
Siβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siβ“˜ QuartzSiO2
SSulfur
Sβ“˜ BaryteBaSO4
Sβ“˜ ChalcopyriteCuFeS2
CaCalcium
Caβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caβ“˜ FluoriteCaF2
FeIron
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feβ“˜ HematiteFe2O3
Feβ“˜ MagnetiteFe2+Fe23+O4
CuCopper
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuβ“˜ DioptaseCuSiO3 · H2O
BaBarium
Baβ“˜ BaryteBaSO4
AuGold
Auβ“˜ GoldAu

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