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Maudina Mine (Campo Bonito gp; Bonito Mines; Other claims; Maudina claims/property), Campo Bonito Mines, Campo Bonito, Oracle District (Control District; Old Hat District; Santa Catalina District), Santa Catalina Mts, Pinal Co., Arizona, USA

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A W-Au-Ag-Pb-Mo-Cu mine (originally a gold property) located in sec. 20, T10S, R16E, on 29 claims about 1 mile SE of Campo Bonito at about 5,100 feet of altitude, on National Forest land. Operated 1908-1912 and 1915-1916. Owned in part, or at times, by the Cody-Dyer Arizona Mining and Milling Co. (1908 thru 1916); and, Campo Bonito Tungsten Mines. Owned by Edward H. Molson. Also known as/designated: Williams Tunsten; Cody tunnel; Campo Bonito Tungsten property; Unpatented claims MS 4250; the Maudina MS 4250 unpatented claim; Patented claims MS 1836; Morning Star MS 1836 patented claim; and Gold Bug. Claims extend into N½NW¼ sec. 20, NE¼NE¼ of sec. 19 and into sec. 12, secs. 17, 18 and 21.

Mineralization is quartz veins in granite with tungsten minerals. The principal oreshoot is located in the southern portion of a vertical fault zone that strikes parallel to the Mogul fault. Related structures are block faulting trending NNW; regional trends: post-Cretaceous pre-Pliocene thrusts and high angle normal and reverse faults. Cretaceous - Tertiary intrusives and consequent faulting; Mogul fault zone. Host rock units are the Abrigo Limestone, recrystallized to marble, and the Escabrosa Limestone. An associated rock unit is the Rice Peak Granodiorite Porphyry. Alteration is silicification of Escabrosa Limestone, restricted to faults and fractures related to the Mogul Fault. Ore control was fault block of Escabrosa Limestone adjacent to the Mogul Fault.

Prevailing rocks consist of Eastward-dipping sandstone, quartzite, impure limestone and shale of the Apache group. Some 1,200 feet farther North is the Mogul fault which strikes West to NW, dips steeply southward, and brings Apache and Paleozoic beds on the south in contact with Precambrian granite on the north. Earlier than this fault are diorite-porphyry dikes of northward strike and eastward dip. Associated with them in the granite area are quartz veins with scheelite.

Workings include a 175 foot deep vertical shaft and an adit tunnel.

Mineral List



11 entries listed. 11 valid minerals.

The above list contains all mineral locality references listed on mindat.org. 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 mindat.org 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.

References

Guild, F.N. (1910), The mineralogy of Arizona, The Chemical Publishing Co., Easton, PA.

University of Arizona Bull. 41 (1916-17), Mineralogy of Useful Minerals in AZ: 53.

Wilson, E.D. (1941), Tungsten Deposits of Arizona, Arizona Bureau of Mines Bull. 148: 32-33.

Bromfield, Calvin S. (1950) Geology of the Maudina Mine area, Northern Santa Catalina Mountains, Pinal County, Arizona, M.S. thesis, University of Arizona.

Dale, V.B. (1959) Tungsten Deposits of Yuma, Maricopa, Pinal, and Graham Counties, Arizona. U.S. Bureau of Mines Report of Investigation 5516: 52-61.

Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 81.

Creasey, S.C. (1967) General Geology of the Mammoth Quadrangle, Pinal County, Arizona, USGS Bulletin 1218.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 363.

U.S. Bureau of Land Management Mining District Sheets 709, 710.

Arizona Department of Mineral Resources Maudina Tungsten Mine file.

Arizona Department of Mineral Resources Santa Rosa Mine file.

Arizona Department of Mineral Resources U file.

USGS Campo Bonito Quadrangle map.

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

MRDS database Dep. ID #10039520, MRDS ID #M050212; and Dep. ID #10103553, MRDS ID #M030487; and Dep. ID #10138041, MAS ID #0040210920; and Dep. ID #10210244, MAS ID #0040210189.

 
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