Hance Mine (Hance property; Hance Asbestos Company Mine), Shinumo quadrangle, Grand Canyon, Grand Canyon District, Coconino Co., Arizona, USA
‡Ref.: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 367; Selfridge, Jr., G.C. (1936), An X-ray and optical investigation of the serpentine minerals, Am.Min.: 21: 463-503; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 106; Allen, M.A. & G.M. Butler (1921), Asbestos, Univ. AZ Bull. 113: 20-24; Noble, L.F. (1914), The Shinumo quadrangle, Grand Canyon District, Arizona, USGS Bull. 549: 58-60; Breed, W.J. Roat, Ed (1974), Geology of the Grand Canyon: 172; USGS Mineral and Water Resources of Arizona (1969): 308; Phillips, K.A. (1987), Arizona Industrial Minerals, AZ Dept. of Mines & Minerals; Bur. Land Management Mining District sheet 103; Stewart, L. US Bur. Mines Info Circ. 7706: 115-118; Shride, A. in AZ Bur. Mines Bull. 180: 305.
An asbestos deposit 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 Co., 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 ListMineral list contains entries from the region specified including sub-localities
| Chrysotile|| 'Serpentine Group'|
5 entries listed. 1 valid mineral.
Localities in this Region
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.
This page is currently not sponsored. To sponsor this page click here.
|Fade toolbar when not in focus||Fix toolbar to bottom of page|
|Hide Social Media Links|
|Slideshow frame delay||seconds|
Locality Updated: Zmenj Meteorite, Brest Province, BelarusFrom Lon Clay Hill, 16th Sep 2014 02:37:06