‡Ref.: The Resources of Arizona - A Manual of Reliable Information Concerning the Territory, compiled by Patrick Hamilton (1881), Prescott, AZ: 35.
Blake, W.P. (1882) The geology and veins of Tombstone, Arizona: American Institute of Mining Engineers, Transactions: 10: 336, 342-344.
Church, J.A. (1903) The Tombstone, Arizona, mining district: American Institute of Mining Engineers, Transactions: 33: 6, 9, 14-17, 21-22, 24, 25-26.
Guild, F.N. (1911), Mineralogische Notizen, Zeit. Krystal. und Mineral.: 49: 321-331.
Guild, F.N. (1917), A microscopic study of the silver ores and their associated minerals, Economic Geology: 12: 297-353.
Rasor, C.A. (1938), Bromyrite from Tombstone, Arizona, American Mineralogist: 23: 157-159.
Rasor, C.A. (1939), Manganese mineralization at Tombstone, Arizona, Economic Geologist: 34: 790-803.
Butler, B.S., et al (1938b), Geology and ore deposits of the Tombstone district, Arizona, Arizona Bureau of Mines Bull. 143: 41, 44, 51, 89, 92-93, Pl. III, IV.
Frondel, C. & F.H. Pough (1944), Two new tellurites of iron: Mackayite and blakeite, with new data on emmonsite and durdenite, American Mineralogist: 29: 211-225.
Galbraith, F.W. (1947), Minerals of Arizona, Arizona Bureau of Mines Bull. 153: 16, 27, 30.
Romslo, T.M. & S.F. Ravitz (1947), Arizona manganese-silver ores, U.S. Bureau of Mines Report of Investigation 4097.
Gilluly, James (1956) General geology of central Cochise County, Arizona, with sections on age and correlation, by A.R. Palmer, J.S. Williamson, and J.B. Reeside, Jr.: U.S. Geological Survey Professional Paper 281, 169 p., 13 sheets, scale 1:62,500.
Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 48, 53, 64, 65, 70, 92, 101.
Bideaux, R.A., et al (1960), Some new occurrences of minerals of Arizona, Arizona Geological Society Digest: 3: 53-56.
McLean, W.J. & J.W. Anthony (1972), The disordered ‘zeolite-like’ structure of connellite, American Mineralogist: 57: 426-438.
Keith, Stanton B. (1973), Arizona Bureau of Mines Bull. 187, Index of Mining Properties in Cochise County, Arizona: 79 (Table 4).
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 125, 131, 146, 157, 183, 196, 200, 211, 212, 219, 247, 261, 265, 281, 304, 306, 332, 357, 361, 374, 385, 392, 401.
Arizona Bureau of mines files.
MRDS database Dep. ID file #10039570, MRDS ID #M050351; and, Dep. ID #10258769, MAS ID #0040030692.
A former small underground Pb-Ag-Zn-Cu-Au-V-(Cd) mine located in the center of sec. 11 and 14, T.20S., R.22E, ¼ mile south of Tombstone, on private land. Discovered by A.E. Sheiffelin, February, 1878. One of Tombstone's first mines, included in the Tombstone group, adjoins the Empire shaft. Owned at times, or in part, by the Tombstone Mill & Mining Co., Tombstone Consolidated Mines Co., Bunker Hill mines Co., and the Tombstone Development Co.
Mineralization is a replacement deposit oxidized base metal sulfides in replacement orebodies in the lower section of the Cretaceous Bisbee Group beds along anticlinal rolls and in pipes where rolls are cut by 'northeast' fissures.
Local structures include the Tombstone Basin; N-trending dikes and NE fissures.
Workings include shafts, drifts, winzes and open cuts. Workings length is 1,219.2 meters in overall area 304.8 meters long, 228.6 meters wide and 152.4 meters deep, including the Empire and adjoining shaft. Several thousand tons of ore were produced in the late 1800's and early 1900's. After 1883 production was included under the Goodenough and the Tombstone group in ABGMT-USBM file data.
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Map Reference: 31°42'45"N , 110°4'0"W
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