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Durham Mine, Darwin, Darwin District, Inyo Co., California, USA
Latitude: 36°16'20"N
Longitude: 117°34'20"W
Longitude: 117°34'20"W
The ore was first treated in a mill in the Darwin Wash, then in Bishop.
The Durham mine is accessible by a jeep-track from the N Main Street, 2.2 miles (3.52 km) east of Darwin (1.1 miles as the crow flies).
Workings consist of an inclined shaft 250 feet deep with 4 levels totaling 1,100 feet of drifts and crosscuts. The 100 feet level connects with the bottom of the Fernando mine. The Fernando Mine and the Durham Mine have been worked for a time as a unit through this connection.
The rocks in this mining area consist of limestone, marble, calc-hornfels and tactite.
Corrected description and position N36.26811 W117.57191 by Richard Muster, courtesy Walt Margerum, Gail Dunning and Robert Hously.
Mineral List
| Andradite Anglesite Bismuth | Bismuthinite Bismutite Cerussite | Fluorite Galena Pyrite | Scheelite |
10 entries listed. 10 valid minerals.
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References
Knopf, Adolph (1914) “The Darwin Lead-Silver Mining District California;” United States Geological Survey Bulletin 580-A, 19 p.
Wilson L. Kenneth (1943), Tungsten deposits of the Darwin Hills Inyo County, California Economic Geology 38: 543-560.
Butner, D.W. (1949), Investigation of tungsten occurrences in Darwin district, Inyo County, California: US Bureau Mines Report of Investigation 4475.
Norman, L.A., and Stewart, R.A. (1951), Mines and Mineral Resources of Inyo County, California, California Division of Mines and Geology, Vol. 47, No. 1, January 1951.
Hall, Wayne Everett & E.M. Mackevett (1958), Economic geology of the Darwin quadrangle, Inyo County, California: Calif Division of Mines Special Report 51, p.: 64.
Hall, Wayne Everett & Edward M. Mackevett (1963), Geology and ore deposits of the Darwin quadrangle, Inyo County, California: USGS PP 368: 59, 76, 77.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 106, 107.
Morrison, Greg (1980) Tungsten Occurrences and Potential in the Darwin Hill, Inyo County, California, University of Western Ontario, February, 1980.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 102 (map 3-6), 125-126, 234, 333.
Stolburg, C. S. (1984) “The Mines and Minerals of Darwin, California;" The Mineralogical Record: 15(1): 5-18.
Randol Mining Directory (1990).
Cooper; Fen and Dunning, Gail (2003) : Occasional Publication of the Bay Area Mineralogists, February, 2003.
Margerum, W. (2004) The Darwin Tungsten Area Part II: Mines and Mineralogy in the Bulletin of the Mineralogical Society of Southern California Vol. 74(5).
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID # 10187676.
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060270700.
Wilson L. Kenneth (1943), Tungsten deposits of the Darwin Hills Inyo County, California Economic Geology 38: 543-560.
Butner, D.W. (1949), Investigation of tungsten occurrences in Darwin district, Inyo County, California: US Bureau Mines Report of Investigation 4475.
Norman, L.A., and Stewart, R.A. (1951), Mines and Mineral Resources of Inyo County, California, California Division of Mines and Geology, Vol. 47, No. 1, January 1951.
Hall, Wayne Everett & E.M. Mackevett (1958), Economic geology of the Darwin quadrangle, Inyo County, California: Calif Division of Mines Special Report 51, p.: 64.
Hall, Wayne Everett & Edward M. Mackevett (1963), Geology and ore deposits of the Darwin quadrangle, Inyo County, California: USGS PP 368: 59, 76, 77.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 106, 107.
Morrison, Greg (1980) Tungsten Occurrences and Potential in the Darwin Hill, Inyo County, California, University of Western Ontario, February, 1980.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 102 (map 3-6), 125-126, 234, 333.
Stolburg, C. S. (1984) “The Mines and Minerals of Darwin, California;" The Mineralogical Record: 15(1): 5-18.
Randol Mining Directory (1990).
Cooper; Fen and Dunning, Gail (2003) : Occasional Publication of the Bay Area Mineralogists, February, 2003.
Margerum, W. (2004) The Darwin Tungsten Area Part II: Mines and Mineralogy in the Bulletin of the Mineralogical Society of Southern California Vol. 74(5).
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID # 10187676.
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060270700.
External Links
http://mccd.edu/faculty/daviesr/Geology/Geology%20References/Minerals%20of%20California.pdf (Butner, D.W. (1949) )
http://pubs.usgs.gov/pp/0368/report.pdf (Hall, Wayne Everett & Edward M. Mackevett (1963),)
http://www.mineralsocal.org/bulletin/2004/2004_may.htm (Mineralogy)
http://www.baymin.org/Field/Darwin/Localities.html (Mineralogy)
http://www.projectdarwin.net/files/project_darwin_70_tungsten_occurrences-_gregg_morr.pdf (Tungsten occurrences)
http://pubs.usgs.gov/pp/0368/report.pdf (Hall, Wayne Everett & Edward M. Mackevett (1963),)
http://www.mineralsocal.org/bulletin/2004/2004_may.htm (Mineralogy)
http://www.baymin.org/Field/Darwin/Localities.html (Mineralogy)
http://www.projectdarwin.net/files/project_darwin_70_tungsten_occurrences-_gregg_morr.pdf (Tungsten occurrences)
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Locality Updated: Mujuram, MoroccoFrom David Von Bargen, 23rd May 2013 12:19:45