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Hamburg Mine (Hamburg claim; Hamburg prospect; Blake), Silver District, Trigo Mts, La Paz Co., Arizona, USA

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Latitude & Longitude (WGS84): 33° 6' 19'' North , 114° 35' 4'' West
Latitude & Longitude (decimal): 33.1052777778, -114.584444444
Other regions containing this locality:Sonoran Desert, North America

‡Ref.: The Resources of Arizona - A Manual of Reliable Information Concerning the Territory, compiled by Patrick Hamilton (1881), Scottsdale, AZ: 73.

Blake, W.P. (1881a), Vanadinite in Arizona, American Journal of Science: 22: 235.

Dana's System of Mineralogy, 6th edition (1896): 1094.

Wilson, E.D. (1933) Geology and Mineral Deposits of Southern Yuma County, Arizona. Arizona Bureau of Mines Bulletin 134: 63-64.

Rocks & Minerals (1938): 13: 99.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Seventh Edition, Volume II: 1085.

Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 80.

Parker, F.Z. (1966) The Geology and Mineral Deposits of the Silver District Trigo Mountains, Yuma County, Arizona. Masters Thesis, San Diego State College: 131-132.

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: 177 (Table 4);

Shannon, D.M. (1980), The Hamburg mine and vicinity, Yuma County, Arizona, Mineralogical Record: 11: 135-140.

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

Rocks & Minerals (1990): 65: 16.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 410, 425.

MRDS database Dep. ID file #10027197, MRDS ID #M002446.

A former underground Pb-Zn-Ag-Baryte-Fluorspar-Sr-Fe-Mo-V mine located in the center of sec. 1, T4S, R23W (protracted), on BLM-administered land. This mine adjoins the Princess Mine on the South. Started about 1880. Owned at times, or in part, by William W. Blake (1880-1881); Norton, Crawford & Lambie; the Neal Mining Co. (circa 1933), and the New Jersey Zinc Co.

Mineralization is nuggets of argentiferous lead carbonate, sulfate, and oxide intermingled with zinc carbonate and reportedly some galena, argentite, and chlorargyrite, with vanadinite and wulfenite in vugs, in a gangue of calcite and brecciated and silicified wall rock cemented with calcite, barite, celestine, quartz, fluorite, and irregular masses of iron oxide. Irregular fissure filling in a fault zone cutting metamorphic Mesozoic schist intruded by Laramide granodiorite and capped by Tertiary dacite flows and pyroclastics. Vein on surface consists of dark gray, ferruginous calcite up to 8 feet (2.44 meters) thick containing irregular bunches of hematite and coarse-grained, vitreous quartz. This is the same fault zone as the Princess Mine and it strikes NNW, dips 30SW, and curves and is traceable for a mile to the south.

Workings include shaft operations. Worked during the 1880's. No record of production from this mine.

Mineral List

19 valid minerals.

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