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Ilex Mine (Anglo-Saxon Mine; Tiger Mine), Rich Gulch, Rich Gulch District, East Belt, Calaveras Co., California, USA

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A former Au-Pb-Sb-Cu mine located in the SE¼ sec. 35, T6N, R12E, MDM, 1.1 km (0.7 mile) ESE of Rich Gulch (town), and 6 miles E of Mokelumne Hill (2½ miles SW ofm Glenco). Operated during the periods of the 1850's and 1860's to the 1890's, 1935 to 1943, and 1945 to 1948. MRDS database stated accuracy for this location is 100 meters.

Mineralization is a vein deposit hosted in schist and plutonic rock. The ore body strikes N70-85E and dips 85S. There are at least 7 parallel veins with strike from N70 to 85E, and steeply dipping. The main vein is the Ilex in the center of the vein system. Country rock is coarse schist and impure quartzite with granodiorite gneiss to the N. Diorite dikes are associated with the veins. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).

Workings include surface and underground openings comprised of a 270 foot shaft, both inclined and verticle, plus a 100 foot drift. There is an adit on the Ilex vein with several shorter drifts on other veins. There are also numerous open cuts.

Local structures include diorite dikes associated with veins.

Production data are found in: Clark (1962).

Mineral List



7 entries listed. 7 valid minerals.

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

Crawford, James John (1894), Twelfth report of the State Mineralogist: California Mining Bureau. (Report 12): 12: 94.

Turner, Henry Ward (1894) Notes on the gold ores of California: American Journal of Science, 3rd. series: 47: 467-473; […(abstract): Zeitschr., prakt. Geologie, Jahrg. 4: 275 (1896)]: 468.

Turner, Henry Ward (1894a), Description of the gold belt; description of the Jackson sheet: USGS, Geologic Atlas Jackson folio (Folio No. 11), 6pp. (reprinted 1914).

Logan, Clarence August and Franke, H. (1936), Mines and Mineral Resources of Calaveras Co.: California Division of Mines, California Journal of Mines & Geology, California Division of Mines: 32(3): 264-265, 309.

California Division of Mines (1957), Economic Mineral Map of California No. 7.

Goodwin, Joseph Grant (1957) Lead and zinc in California. California Journal of Mines and Geology, Division of Mines (Report 53): 53(3&4): 430.

Clark, Wm. B. & P.A. Lydon (1962), Mines and mineral resources of Calaveras County, California: California Division of Mines & Geology County Report 2; [… Geological Society of America Proceedings, 1933: 312-313, 1934]: 51, 59-60, 159, Pl. B.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 363.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 127.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10102675 & 10138220.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060090549.

 
Mineral and/or Locality  
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