Muderbach Mine (Mudersbach Mine; Mudersback Mine; Mudersbach Camp; Mudersbach Copper Camp; Mudersbach Gypsum Mine; Tuck Mine; Excelsior Mine), Ibex Peak, Plomosa District, Plomosa Mts, La Paz Co., Arizona, USA
Latitude: 33°48'18"N
Longitude: 114°3'38"W
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).
Mineral List
10 entries listed. 8 valid minerals.
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