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Thompson Mine, Darwin Mine (Anaconda; Bernon Mine; Defiance Mine; Essex Mine; Independence Mine; Intermediate Mine; Rip Van Winkle Mine; Thompson Mine), Darwin, Darwin District, Darwin Hills, Inyo Co., California, USA
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Scheelite
Thompson Mine, Darwin Mine, Darwin, Darwin District, Darwin Hills, Inyo Co., California, USA

Photo: 2001 John H. Betts
Latitude: 36°16'55"N
Longitude: 117°35'27"W
 
 
A W-Ag-Pb-Zn-Bi-Sn mine located in sec. 13, T19S, R40E, MDM, about 1.2 km (0.7 mile) SE of Ophir Mountain (coordinates of record) and about 1.5 km (5,100 feet) N of Darwin. Owned by the Darwin Mines, Inc. and then Anaconda Copper Co.

NOTE: This mine does not have a separate USGS MRDS database file assigned. It is mentioned in the files for the mine groups in the Darwin Mines.

NOTE: This is one of several mines incorporated into the "Darwin Mine" of the Anaconda Corp. It was also later incorporated into the group termed the "Darwin Mines," owned by Mexicanus Colorado Inc.

In 1945 The Anaconda Co. purchased the Bernon Defiance, Driver, Essex, Independence, Lane, Lucky Jim, Promontory, Rip Van Winkle and Thompson mines, and other small properties In the Darwin quadrangle and the Columbia mine at the south end of the Darwin Hills in the Coso Peak quadrangle, and they have operated some of them from 1945 to 1955.

The Company „Project Darwin LLC“ acquired the Darwin mines and 58 patented mining claims in 1996. The company is looking for investors to re-start the Darwin mines.

NOTE: Coordinates provided are approximate to the center of sec. 13.

Mineral List

Acanthite
'Andorite'
Anglesite
Azurite
Bismuth
Bornite
Brochantite
Calcite
Caledonite
Cerussite
Chalcopyrite
Chlorargyrite
Chrysocolla
Creedite
Diopside
Enargite ?
Epidote
Famatinite
Fluorite
Franckeite
Galena
Guanajuatite
Gypsum
Hydrozincite
Jarosite
'Limonite'
Linarite
Malachite
Plumbojarosite
Pyrite
Pyromorphite
Quartz
Scheelite
Sphalerite
Stannite
Stolzite ?
Sulphur
Tetrahedrite
Tungstite
Vanadinite
Wollastonite
Wulfenite


42 entries listed. 40 valid minerals.

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References

Tucker, W. Burling & Reid J. Sampson (1941), Recent developments in the tungsten resources of California: California Division Mines Report 37: 567.

Rocks & Minerals (1948): 23: 504-507.

Hall, Wayne Everett & E.M. Mackevett (1958), Economic geology of the Darwin quadrangle, Inyo County, California: Calif Division of Mines Special Report 51, 77 pp.: 17.

Hall, Wayne Everett & Edward M. Mackevett (1963), Geology and ore deposits of the Darwin quadrangle, Inyo County, California: USGS PP 368: 59, 61.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 74, 106, 175, 188, 208, 353.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 51, 93, 137, 139.

Mineralogical Record (1984): 15(1): 17.

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