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Czar Mine (Czar shaft), Copper Queen Mine (Halero Mine), Queen Hill, Bisbee, Warren District, Mule Mts, Cochise Co., Arizona, USA

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Latitude & Longitude (WGS84): 31° 26' 30'' North , 109° 54' 33'' West
Latitude & Longitude (decimal): 31.44194,-109.90944
Other regions containing this locality:Sonoran Desert, North America

A former large output underground Cu-Ag-Au-Pb-Zn mine located in the South-central sec. 9, T23S, R24E (Bisbee 7.5 minute topo map), approximately 1½ miles NW of Lowell, on private land. A major shaft of the Copper Queen Mine workings. Owned by the Phelps Dodge Corp.

Mineralization is mainly oxidized copper ores with some areas of zinc and lead ore in irregular replacement bodies in Devonian Martin and Lower Mississippian Escabrosa limestones that have been shattered and crushed by faulting and fracturing and altered and intruded by porphyry dikes and sills. Ore control was nearby dikes and sills, and faulting and associated brecciation. Ore concentration was bornite replacing pyrite. Alteration was gossan with Mn and Fe oxides induced by hydrothermal metamorphism. An associated rock unit is the Sacramento Hill Stock.

Local structures include common pre-mineralization faulting and tilting. Main fault directions are N10W to N40E and S30W to N50W.

Workings include underground openings comprised of a deep shaft to 134.11 meters deep. This shaft has 4 levels that connect to the other shafts. A major producer in its early history. Tonnages are included in Phelps Dodge totals.

Mineral List

16 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

1600 - 1800 Ma
Early Proterozoic metamorphic rocks

Age: Statherian (1600 - 1800 Ma)

Description: Undivided metasedimentary, metavolcanic, and gneissic rocks. (1600-1800 Ma)

Lithology: Major:{metasedimentary,metavolcanic,gneiss}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Ransome, F.L. (1904a) The geology and ore deposits of the Bisbee quadrangle, Arizona. USGS Professional Paper 21: 110.

Palache, C. and H.E. Merwin (1909) On connellite and chalcophyllite from Bisbee, Arizona. American Journal of Science: 28: 537-540.

Ford, W.E. and Bradley, W.M. (1915) On the identity of footeite with connellite together with the description of two occurrences of the mineral. American Journal of Science: 39: 570-676.

Bonillas, Y.S., Tenny, and Feuchere (1917) Geology of the Warren mining district: A.I.M.E. Transactions, Vol. 55: 324, 328, 336-337.

Holden, E.F. (1922) Ceruleofibrite, a new mineral. American Mineralogist: 7: 80-83.

Holden, E.F. (1924) Ceruleofibrite is connellite. American Mineralogist: 9: 55-56.

Frondel, C. (1941) Paramelaconite: A tetragonal oxide of copper. American Mineralogist: 26: 567-672.

Frondel, C. (1949) Crystallography of spangolite. American Mineralogist: 34: 181-187.

Bannister, F.A., Hey, M.H., and Claringbull, G.F. (1950) Connellite, buttgenbachite, and tallingite. Mineralogical Magazine, vol. 29, n° 211, 280-286 (referring to Ford and Bradley (1915)).

Palache, C., Berman, H., and Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 573.

Galbraith, F.W. and Brennan, D.J. (1959) Minerals of Arizona: 65.

Keith, Stanton B. (1973) Arizona Bureau of Mines Bull. 187, Index of Mining Properties in Cochise County, Arizona: 86 (Table 4).

Graeme, R. (1981) Famous mineral localities: Bisbee, Arizona, Mineralogical Record: 12: 256-319.

Niemuth, N.J. and Phillips, K.A. (1992) Copper Oxide Resources. Arizona Department of Mines & Mineral Resources Open File Report 92-10: 4 (Table 1).

Anthony, J.W., et al. (1995) Mineralogy of Arizona, 3rd.ed.: 148, 183.

Arizona Bureau of Mines files.

MRDS database Dep. ID file #10046247, MRDS ID #M241116; and, Dep. ID #10112426, MAS ID #0040030594.

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