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Bomboy Mine (Bumboy Mine; Bombay Mine; King Copper group), Roblas Butte area, Wood Camp Canyon District, Pinal Co., Arizona, USA
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Latitude: 33°19'9"N
Longitude: 111°12'48"W
 
 
A former underground Cu-Ag-Au-V-Pb mine located in the SW¼NW¼NW¼ sec. 26 T1S, R11E (Picketpost Mountain 7.5 minute topo map), about 1¾ miles SSE of Roblas Butte (old Wood Camp Canyon District). It is 2½ miles westerly from Hewitt Station. Superior is 8 miles east by air, 13 miles by road, on National Forest land. Produced 1916-1971. Owned by Mr. Tom Gray (1958); Ethel Gray had unspecified involvement here. Operators included: Ethel Gray, West and Russell, Guzmann and Schwartz, M., Gray and Davy, C. Bomboy, T.D. Teakell, Dan Kinnard, T.D. Trochell, The King Copper Mine, Anton Johnson (1956), and Tom C. Gray (1955).

Mineralization is a vein deposit comprised of 2 veins, one 3 to 5 feet wide, 70 feet long, and one 4 to 5 feet wide, and 50 feet long. The ore zone overall is 21.34 meters long, 1.52 meters wide, strikes N25E and dips 45E. Quartzite occurs on the hanging wall, diabase dike below. Host rock units are diabase and quartzite. Ore control was along a dike with a N25E trend. This deposit is probably in Precambrian epiclastic rocks. The age of mineralization is unknown. There is no detailed geologic map of the area. Quartzite was reported as Cambrian in 1943. The ADMR advised that it may be Bolsa, or it may be Precambrian Troy Quartzite.

Workings are 213.36 meters total length, 121.92 meters long, 30.48 meters wide, and 60.96 meters deep. Further development of workings may have occurred.

Mineral List

Chrysocolla
Copper
'Limonite'


3 entries listed. 2 valid minerals.

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References

Flagg, A.L., Vanadium Reports, Book IV.

Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 13 (Table 1).

U.S. Bureau of Mines file cluster #402.

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

USGS Picketpost Mountain Quadrangle topo map.

Arizona Department of Mineral Resources Bomboy Mine file.

Yale Peabody GNIS database (NOTE: this database is derived from USGS 1:24,000 topographic map data).

MRDS database Dep. ID #10109779, MRDS ID M241190; and, Dep. ID #10210569, MAS ID #0040210186.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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