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Mossback Mine (Gladys Mine; Alice B. Mine; Ida Mine; Mossback Extension Mine; Gold Reed Mining Co. Mine), Mossback vein, Oatman, San Francisco District, Oatman District (San Francisco District; Union Pass District), Black Mts, Mohave Co., Arizona, USA

Latitude: 35°5'48"N
Longitude: 114°24'32"W

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‡Ref.: Wilson, E.D., et al (1934), AZ Bur. of Mines Bull. 137: 98-99; Ransome, F.L. (1923), Geology of the Oatman Gold District, Arizona, USGS Bull. 743: Plate 1; Gardner, E.D. (1936), Gold mining and milling in the Black Mountains, western Mohave County, Arizona, US Bur. Mines Info. Circ. 6901: 33; Schrader, F.C. (1909), Mineral deposits of the Cerbat Range, Black Mountains, and the Grand Wash Cliffs, Mohave County, Arizona: USGS Bull. 397; Ransome, F.L. (1923), Geology of the Oatman Gold District, Arizona, USGS Bull. 743: 30-50; Cunningham & Butler, AZ Bur. Mines Bull. 137; USGS 7.5 minute Oatman topo. map; Bur. Land Mgmt. District map; AZ Dept. Min. Resources (ADMR) Householder map, AZ Dept. Min. Resources (ADMR); AZ Dept. Min. Resources (ADMR) Mossback Group Mine file; AZ Dept. Min. Resources (ADMR) Mohave card file; MRDS files #10027927, 10234386 & 10162238.

A former underground Au-Ag-fluorspar mine located in north-central sec. 28, T.20N., R.20W., about 2¼ miles East of the Moss Mine and NNW of Oatman at about 2,400 feet of altitude. Discovered and started in 1863 the Garry Mining Co. Operated 1933-1935.

35.10140; -114.41190.

Mineralization is the Mossback vein, which strikes NW-ward and dips 80º SW. The hanging wall is Moss Quartz Monzonite-porphyry and the footwall is Oatman Andesite. The vein filling is calcite, quartz and brecciated andesite. The vein is 23 feet (7 meters) wide at the surface. The best oreis associated with slicified areas.

Workings include a 330 foot deep shaft (before 1907), that was deepened to 700 feet (1918-19).

Mineral List

Calcite

Fluorite

Gold

3 entries listed. 3 valid minerals.

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
Current server date and time: 15th Jun 2012 02:32:01