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Apex Mine (Apex property; Arizona Apex Mine; Lavell Mine; San Bernado), Chilito, Hayden area, Banner District, Dripping Spring Mts, Gila Co., Arizona, USA

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Latitude & Longitude (WGS84): 33° 4' 36'' North , 110° 48' 2'' West
Latitude & Longitude (decimal): 33.0766666667, -110.800555556
Other regions containing this locality:Sonoran Desert, North America
North America

A former underground Ag-Pb-Au-Cu mine located in the center S½ sec. 15, T4S, R15E, just N of the ghost town of Chilito, on land of mixed status. NOTE: Located near, or possibly identical to, the San Bernardo Junior Mine (stated to lie in sec. 23). Production occurred from 1910 to 1941.

Mineralization is a linear ore body hosted in the Martin formation and the Abrigo formation. Ore control was along quartz latite porphyry dikes and along limestone bedding planes, where the beds are broken by steeply inclined fractures. Alteration included limestone converted to marble through metamorphism. Extensive alteration is present.

Local structures include an E-W trending quartz latite porphyry dikes, and one NE-trending dike. Abrigo and Martin formation beds strike NNE to NE, and dip 9°-15°SE. Complex faulting with the major faults trending N-S, including the O'Carroll fault ¼ mile east, and other N-S and NE-trending faults.

Mineral List

12 valid minerals.

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.


Arizona Mining Journal (1918) March, 1918: 20.

Arizona Mining Journal (1919) June, 1919: 83.

Ross, Clyde P. (1925) Ore Deposits of the Saddle Mountain and Banner Mining Districts, Arizona, USGS Bull. 771: 63-64.

Elsing and Heineman (1936) Arizona Metal Production. Arizona Bureau of Mines Bulletin 140: 92.

Galbraith, F.W. (1947), Minerals of Arizona, Arizona Bureau of Mines Bull. 153: 70.

Galbraith, F.W. & Brennan (1959), Minerals of Arizona: 64.

Eastlick, John T. (1968), in: Ore Deposits of the United States, 1933-1967. Graton Sales Volume, John D. Ridge editor, A.I.M.E.: 1192.

Peirce, H. Wesley (1990), Arizona Geological Survey Industrial Minerals card file.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 261.

Mineralogical Record (1989): 20(5): 387.

USGS Hayden Quadrangle map.

U.S. Bureau of Mines - Arizona Bureau of Geology and Mining Technology file data.

Arizona Department of Mineral Resources Apex Mine file.

MRDS database Dep. ID #10233600, MRDS ID #M241235, MAS ID #0040070145; and, Dep. ID #10109789.

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