Grand View Mine (Last Chance Mine; No. 1 Pat claim 3591; No. 5 Pat claim 3592a; No. 4 Pat claim 3592a; Canyon Copper Mine; Grand Canyon Mine), Cape Royal, Horseshoe Mesa, Grand Canyon National Park, Grandview District, Coconino Co., Arizona, USA
A former Cu-U mine located in the NE¼ sec. 5, T.30N., R.4E. (Vishnu Temple 15 minute topo map), on the Cape Royal cliff, North rim, Grand Canyon. The Grand View Mine and (this) Last Chance Mine are the same (Mineralogy of Arizona, 3rd. ed.). Discovered 1890. First production was 1893 and the last was 1916.
Mineralization is secondary Cu minerals with gangue species in a breccia zone along a monocline flexure in Shea basalt hosted in the Navajo sandstone. Redwall limestone is bleached, brecciated and marblized. The Grandview monocline lies along the WNW-trending Cremation fault.
References:
- Rogers, A.F. (1922), The optical properties and morphology of bisbeeite, Am. Min.: 7: 153-154
- Gordon, S.G. (1923), Recently described 'bisbeeite' from the Grand Canyon is cyanotrichite, Am.Min.: 8: 92-93
- Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 65
- USGS Minerals Yearbooks 1902-1967
- Roseveare, G.H. in USGS & AZ Bur. Mines, and US Bur. Of Reclamation 1969, Mineral and water resources of Arizona, AZ Bur. of Mines Bull. 180.
- Leicht, W.C. (1971), Minerals of the Grandview mine, Mineralogical Record: 2: 214-221
- Breed, W.J. & Roat, Ed (1974), Geology of the Grand Canyon: 172, 174
- Wenrich, Karen J., et al (1992), USGS Bull. 1683-D: D2
- Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, AZ Dept. Mines & Min. Resources Open File Rept. 92-10: 6 (Table 1)
- Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 102, 123, 125, 127, 146, 157, 160, 162, 198, 201-202, 271, 285, 297, 316, 322, 365, 374, 429
- AZ Dept. Min. Resources Last Chance Mine file
- Bur. Land Management Mining District sheet No. 102
- Emmons, S.F., USGS Bull. 260: 221-232
- US Atomic Energy Comm USAEC Prelim. Rpt. 172-479: 57
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Map Reference: 36°1'3"N , 111°58'26"W
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Mineral List:25 entries listed. 24 valid minerals. 1 type locality (valid mineral).
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