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Muderbach Mine (Mudersbach Mine; Mudersback Mine; Mudersbach Camp; Mudersbach Copper Camp; Mudersbach Gypsum Mine; Tuck Mine; Excelsior Mine), Ibex Peak, Plomosa Mining District, Plomosa Mountains, La Paz Co., Arizona, USAi
Regional Level Types
Muderbach Mine (Mudersbach Mine; Mudersback Mine; Mudersbach Camp; Mudersbach Copper Camp; Mudersbach Gypsum Mine; Tuck Mine; Excelsior Mine)Mine
Ibex PeakPeak
Plomosa Mining DistrictMining District
Plomosa MountainsMountain Range
La Paz Co.County
ArizonaState
USACountry

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Key
Latitude & Longitude (WGS84):
33° 48' 18'' North , 114° 3' 38'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Bouse996 (2011)15.0km
Utting126 (2011)16.5km
Brenda676 (2011)17.6km
Quartzsite3,626 (2017)22.2km
Vicksburg597 (2011)29.3km


Ref.: Bancroft, H. (1911), Reconnaissance of the ore deposits in northern Yuma County, Arizona, USGS Bull. 451: 91-92.

Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 60.

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: 168 (Table 4).

Phillips, K.A. (1987), Arizona Industrial Minerals, 2nd. Edition, Arizona Department of Mines & Minerals Mineral Report 4, 185 pp.

Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 9 (Table 1).

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 241.

MRDS database Dep. ID file #10027049, MRDS ID #M001809; and, Dep. ID file #10102214, MRDS ID #I001097; and, Dep. ID #10210423, MAS ID #0040120203.

A former surface and underground Cu-Fe-Ag-Au-Gypsum mine located in West-central sec. 5 and in the NE¼ sec. 6, T5N, R17W (Bouse 15 minute topo map), 8 miles SW of Bouse, on BLM-administered land. Owned at times, or in part, by the Excelsior Gold & Copper Co.; the Record Mines Co.; and, Williams.

Mineralization is a replacement deposit with ore in irregular and pockety distribution copper and iron sulfides are in a pyrometasomatic deposit, oxidized near the surface, with a garnet-epidote gangue and strong hematitic-copper carbonate gossan. The irregular deposit is in faulted and deformed metamorphosed Mesozoic limestone interbedded with schist and intruded by quartz monzonite.

Workings are relatively shallow with 2 shallow shafts, tunnels, and open cuts. This mine was worked intermittently from the early 1900's through 1930. It produced some 700 tons of ore averaging about 4.4% Cu, 0.67 oz. Ag/T, and 0.03 oz. Au/T. One carload of ore has been shipped, which the owner reported averaged 10.4% Cu and $1.00 in Au per ton (period values)(owner's identification and timefame not specified).

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

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


Mineral List


8 valid minerals.

Detailed Mineral List:

Bornite
Formula: Cu5FeS4
Reference: Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geol. Sur. Br. Bull. 192, Index of Mining Properties in Yuma Co., Arizona: 168 (Table 4); Bancroft (1911): 91-92; Arizona Bureau of Mines file data.
Calcite
Formula: CaCO3
Reference: MRDS database Dep. ID file #10027049, MRDS ID #M001809.
Chalcopyrite
Formula: CuFeS2
Reference: Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geol. Sur. Br. Bull. 192, Index of Mining Properties in Yuma Co., Arizona: 168 (Table 4); Bancroft (1911): 91-92; Arizona Bureau of Mines file data.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geol. Sur. Br. Bull. 192, Index of Mining Properties in Yuma Co., Arizona: 168 (Table 4); Bancroft (1911): 91-92; Arizona Bureau of Mines file data.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geol. Sur. Br. Bull. 192, Index of Mining Properties in Yuma Co., Arizona: 168 (Table 4); Bancroft (1911): 91-92; Arizona Bureau of Mines file data.
Gold
Formula: Au
Reference: MRDS database Dep. ID file #10027049, MRDS ID #M001809.
Gypsum
Formula: CaSO4 · 2H2O
Description: Occurs as as a bed several feet thick.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 241; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 60.
Hematite
Formula: Fe2O3
Description: In hematitic-copper carbonate gossan.
Reference: Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geol. Sur. Br. Bull. 192, Index of Mining Properties in Yuma Co., Arizona: 168 (Table 4); Bancroft (1911): 91-92; Arizona Bureau of Mines file data.
Hematite var: Specularite
Formula: Fe2O3
Reference: MRDS database Dep. ID file #10027049, MRDS ID #M001809; Copper Handbook 1911
Pyrite
Formula: FeS2
Reference: Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geol. Sur. Br. Bull. 192, Index of Mining Properties in Yuma Co., Arizona: 168 (Table 4); Bancroft (1911): 91-92; Arizona Bureau of Mines file data.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Bornite2.BA.15Cu5FeS4
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
var: Specularite4.CB.05Fe2O3
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Gypsum7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Unclassified Minerals, Rocks, etc.
'Garnet Group'-X3Z2(SiO4)3

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Unclassified Minerals, Mixtures, etc.
'Garnet Group'-X3Z2(SiO4)3
Hematite
var: Specularite
-Fe2O3

List of minerals for each chemical element

HHydrogen
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H GypsumCaSO4 · 2H2O
CCarbon
C CalciteCaCO3
OOxygen
O Garnet GroupX3Z2(SiO4)3
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O HematiteFe2O3
O GypsumCaSO4 · 2H2O
O Hematite (var: Specularite)Fe2O3
O CalciteCaCO3
AlAluminium
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
SiSilicon
Si Garnet GroupX3Z2(SiO4)3
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
SSulfur
S ChalcopyriteCuFeS2
S BorniteCu5FeS4
S PyriteFeS2
S GypsumCaSO4 · 2H2O
CaCalcium
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca GypsumCaSO4 · 2H2O
Ca CalciteCaCO3
FeIron
Fe ChalcopyriteCuFeS2
Fe BorniteCu5FeS4
Fe PyriteFeS2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe HematiteFe2O3
Fe Hematite (var: Specularite)Fe2O3
CuCopper
Cu ChalcopyriteCuFeS2
Cu BorniteCu5FeS4
AuGold
Au GoldAu

Other Databases

USGS MRDS Record:10027049

Other Regions, Features and Areas containing this locality

North America
North America PlateTectonic Plate

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