Ingersol Mine (Bob Ingersol Mine; Ingersoll Mine; Bob Ingersoll Mine; Blue Monday Mine; Hearst-Hagen Estate), Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA
Latitude: 31°42'15"N
Longitude: 110°4'15"W
‡Ref.: The Resources of Arizona - A Manual of Reliable Information Concerning the Territory, compiled by Patrick Hamilton (1881), Scottsdale, AZ: 37.
Blake, W.P. (1882) The geology and veins of Tombstone, Arizona: American Institute of Mining Engineers, Transactions: 10: 334-345; also Engineering and Mining Journal: 33: 145-146, 157, 231-232, 328; and, vol. 34: 29-30.
Butler, B.S., Wilson, E.D., and Rasor, C.A. (1938b), Geology and ore deposits of the Tombstone district, Arizona, Arizona Bureau of Mines Bull. 143: 44, 48, 77, 89, 91, 96, Pl. IV.
Rasor, C.A. (1939), Manganese mineralization at Tombstone, Arizona, Economic Geology: 34: 790-803.
Galbraith, F.W. (1947), Minerals of Arizona, Arizona Bureauf Mines Bull. 153: 28.
Romslo, T.M. & S.F. Ravitz (1947), Arizona manganese-silver ores, U.S. Bureau of Mines Report of Investigation 4097.
Burnham, C.W. (1959), Metallogenic provinces of the southwestern US and northern Mexico: New Mexico Bureau of Mines and Mineral Resources Bull. 65: 31.
Keith, Stanton B. (1973), Arizona Bureau of Mines Bull. 187, Index of Mining Properties in Cochise County, AZ: 76 (Table 4).
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 5.(Table 1).
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 219, 392.
Arizona Bureau of Mines files.
MRDS database Dep. ID file #10026910, MRDS ID #M000997; and, Dep. ID #10185728, MAS ID #0040030631.
A former small underground Pb-Ag-Zn-Au-Cu-Cd-Mn mine located in the SE ¼ sec. 11, T.20S., R.22E. (Tombstone 7.5 minute topo map), 3/4 mile SW of Tombstone, on private land. Produced 1885-1932. Legend exists that George Hearst won the property in an 1880's poker game in Tombstone. Owned at times, or in part, by the Hearst-Hagen Estate and the VMP Leasing Co.
Mineralization is oxidized replacement deposits of base metal sulfides with small, high grade streaks of silver-gold values in an overturned fold of Cretaceous Bisbee Group limestone cut by 'northeast' fissures. The ore is oxidized.
Local structures include post-mineralization faulting which occurred on WNW and NNW trends, tilting the basin NNE; "Northeast fissures."
Workings include a shaft(s)(200 foot deep shaft (1881)), and ultimately to 121.92 meters. Work on the 100-400 foot levels, 400 foot level worked in 1923-1932. Probably 2000 or more feet of workings. Several thousand tons of ore were produced in the 1880's and a few thousand tons intermittently from 1918 to 1932. No zinc reported to USBM; however, zinc was reported in literature.
Mineral List
2 entries listed. 2 valid minerals.
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