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Hance Mine (Hance property; Hance Asbestos Company Mine), Grand Canyon, Coconino Co., Arizona, USA

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Latitude & Longitude (WGS84): 36° 2' 52'' North , 111° 56' 32'' West
Latitude & Longitude (decimal): 36.0480537415, -111.942497253
Other regions containing this locality:Grand Canyon National Park, Arizona, USA


An asbestos occurrence in the bottom of the Grand Canyon and side canyons. The property extends for some 9,000 feet down river from the cableway. Owned by the Hance Asbestos Company, New York.

Mineralization is hosted in Precambrian Bass Limestone altered by diabase sills (Shea basalt). The larger veins of chrysotile lie in limestones that are beneath the diabase sill. The smaller veins above the sill are more widely distributed. The veins beneath the sill may lie anywhere from 5 to 15 feet below the limestone-diabase contact.

Workings include a cableway installed about 1,200 feet above the river.

Mineral List

Mineral list contains entries from the region specified including sub-localities

1 valid mineral.

Rock Types Recorded

Entries shown in red are rocks recorded for this region.

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Rock list contains entries from the region specified including sub-localities


Localities in this Region

USA

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

Noble, L.F. (1914), The Shinumo quadrangle, Grand Canyon District, Arizona, USGS Bulletin 549: 58-60.

Allen, M.A. & G.M. Butler (1921), Asbestos, University of Arizona Bulletin 113: 20-24.

Selfridge, Jr., G.C. (1936), An X-ray and optical investigation of the serpentine minerals, American Mineralogist: 21: 463-503.

Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 106.

Shride, A., in: Moore, R.T. and Roseveare, G.H. (1969) Mineral and water resources of Arizona: U.S. 90th Congress, 2nd Session, Senate Committee on Interior and Insular Affairs. Arizona Bureau of Mines Bulletin 180: 305.

USGS Mineral and Water Resources of Arizona (1969): 308.

Breed, W.J., Roat, Ed (1974), Geology of the Grand Canyon: 172.

Phillips, K.A. (1987), Arizona Industrial Minerals, Arizona Department of Mines & Minerals, Bureau of Land Management Mining District sheet 103.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 367.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10027306.

Stewart, L. U.S. Bureau of Mines Information Circular 7706: 115-118.

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