Morning & Evening Mine group (Morning and Evening Mine; Morning Mine), Pajarito District, Pajarito Mts, Santa Cruz Co., Arizona, USA
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Cornwall, H.R. (1973), Field Examination.
Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 72 (Table 4).
Riggs, N.R. (1985) Stratigraphy, structure, and mineralization of the Pajarito Mountains, Santa Cruz County, Arizona: Tucson, University of Arizona, M.S. thesis, 102 p., 3 sheets, scale 1:12,000: Table 2.
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 16 (Table 1).
US Bureau of Mines staff (1994) U.S. Bureau of mines Open File Report MLA XX-94: A59.
U.S. Bureau of Mines file data-cluster #20 - Morning Mine.
U.S. Bureau of Mines - Arizona Bureau of Geology and Mineral Technology production file data.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10039616, MRDS ID #M050503; and, Dep. ID #10113696, MAS ID #0040230294.
A former small surface and underground Ag-Pb-Au-Cu-Zn-Mn mine located in the SW¼SW¼SW¼ sec. 35, T.23S., R.12E. (Ruby 15 minute topo map), on National Forest land. Produced 1890- ?, 1926-1930. Operated by Mr. W.B. Kimmel (1927).
Mineralization is argentiferous galena in pockets, largely oxidized, on irregular and lensing, narrow fissure veins cutting Cretaceous quartz latite volcanics. Strongly oxidized pyrite and manganese gossan with high-grade silver pockets. Also contains secondary copper minerals. The host rock unit is Pajarito Lavas. Ore is found only within the bounding fault planes; no trace of the host rock is left in the shear zone except for some quartz phenocrysts. Ore control was steeply-dipping NE shear zones. Ore concentration was epithermal open space filling and minor supergene enrichment. Alteration was marcasite to galena to anglesite and cerussite; pyrite gossan. Local structures include a NW-trending fault zone.
Workings include shallow shaft, adit, and open cut operations. Worked sporadically from the late 1800's through 1930, producing some 100 or more tons of ore averaging about 200 oz. Ag/T, 22% Pb, and minor gold and copper.
8 entries listed. 6 valid minerals.
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