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Gold Coin Mine, Virginia Point, Coulterville District, Mother Lode Belt, Mariposa Co., California, USA

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A former lode Au mine located in secs. 14 & 23, T3S, R16E, MDM, 2.2 km (7,300 feet) W of Virginia Point (coordinates of record), and 3.3 km (2.0 miles) ESE of Horseshoe Bend Mountain (coordinates of record), along Whites Gulch (3½ miles SSE of Coulterville; on the W slope of Whites Gulch, ¼ mile E of the Adelaide Mine). Operated in 1938. Operated by J. K. Wadley (1938). MRDS database stated accuracy for this location is 500 meters.

Mineralization is a vein/pocket deposit hosted in slate. The ore body strikes N and dips 70E. This vein is a branch of the Mother Lode system. The main vein is well-defined and is cut by numerous NW-trending stringers. High-grade ore pockets at the vein-stringer intersections. Local rocks include Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains).

Workings include unspecified underground openings.

Production data are found in: Bowen, O.E., Jr. & C.H. Gray, Jr. (1957).

The amount produced from pockets prior to 1938 has not been recorded.

Mineral List

2 entries listed. 2 valid minerals.

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Julihn, C.E. and F.W. Horton (1940), Mines of the Southern Mother Lode Region, Part II - Tuolumne and Mariposa Counties; in: Mineral Industried Survey of the United States, California. U.S. Bureau of Mines, Bulletin 424: map facing p. 103.

USGS Coulterville, California, quadrangle topo map (1949).

Bowen, O.E., Jr. & C.H. Gray, Jr. (1957), Mines and mineral deposits of Mariposa County, California: California Journal of Mines and Geology (Report 53): 53(1&2): 264-265.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10030864 & 10114848.

U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0060430627.

Mineral and/or Locality  
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