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Oro Y Plata Mine (Oro-Plata Extension Mine; Red Wing Willard Mine; Pay Rock Mine; Silver Star Mine; Blue Wing Mine), Murphys, Esmeralda District (Murphy District; Sperry District), Calaveras Co., California, USA

Latitude: 38°8'45"N
Longitude: 120°28'5"W
A former Au-Cu-Pb-Ag-Sn-Hg-Zn-Sb mine located in secs. 5 & 6, T3N, R14E, MDM, near Murphy.

Mineralization is hosted in limestone and diorite. Stibnite hosting minor amounts of gold and silver has occasionally been found in the veins.

Production data are found in: Logan (1936); Clark (1962).

Mineral List

Cinnabar
Dolomite
Gold
Stibnite
Tetrahedrite


5 entries listed. 5 valid minerals.

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References

Turner, Henry Ward & F.L. Ransome (1898), Description of the gold belt; description of the Big Trees sheet, California: USGS Geol. Atlas, Big Trees folio (No. 51), 8 pp.: 6.

Logan, Clarence August and Franke, H. (1936), Mines and Mineral Resources of Calaveras Co.: California Division of Mines, California Journal of Mines & Geology (Report 32): 32(3): 278, 279, 280, 315.

Goodwin, Joseph Grant (1957) Lead and zinc in California. California Journal of Mines and Geology, Division of Mines: 53(3&4): 434.

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]: 29, 65, 172.

Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 349, 363.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 127, 133.

Clark, William B. & Lydon, Philip A. (1963), Mines and Mineral Resources of Calaveras County, California, California Division of Mines and Geology, County Report No. 2: page 128.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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