Blue Moon Mine (Porcupine Mine; Blue Cloud Mine; Red Cloud Mine), Hornitos, West Belt, Mariposa Co., California, USA

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A former Zn-Cu-Pb-Au-Ag mine located in sec. 30, T4S, R16E, MDM, 3 miles N of Hornitos.

Mineralization is a replacement deposit (Deposit Model: 184: Massive sulfide, kuroko), hosted in schist and greenstone.

Related tectonic structures include an island arc.

Production data are found in: Eric, J. H., and Cox, M. W. (1948): 145.

References

Turner, Henry Ward & F.L. Ransome (1897), Description of the gold belt; description of the Sonora sheet: USGS Geol. Atlas, Sonora folio (No. 41), 7 pp.

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: 164-168.

Heyl, G.R. (1943) Report on the Brief Examination of Copper-Zinc Mines in the Vicinity of Hornitos, Mariposa County, California. U.S. Bureau of Mines File Report, October 16, 1943, 3 pp.

Mining World (1944), Hecla's California Project, Red Cloud Mines Inc. Mining World, April 1944: 11-13.

U.S. Bureau of Mines (1945), War Minerals Report. American Eagle Mine, Mariposa County, California. United States Department of the Interior - Bureau of Mines, W.M.R. 407 - Zinc, June 1945, 8 pp.

Eric, J.H. and M.W. Cox (1948) Zinc deposits of the American Eagle-Blue Moon area, Mariposa County, California. California Division Mines Bulletin 144: 134-150.

Wiebelt, F.J., Sanborn, W.C., Trengrove, R.R., and Ricker, A.S. (1951) Investigaton of West Belt copper-zinc mines, El Dorado, Amador, Calaveras, and Mariposa counties. U.S. Bureau of Mines Report of Investigation 4760, 62 pp.

DMPA Application 2162 - Sierra Zinc Inc. - Reported May, 1952 by Weheit - DMEA Index - California - Nevada: 9.

Wiebelt, F.J. (1952), Office memorandum - Sierra Zinc Producers, Inc. U.S. Bureau of Mines, May 5, 1952, 3 pp.

Bowen, Jr., O.E., and C.H. Gray, Jr. (1957), Mines and Mineral Resources of Mariposa County, California, California Journal of Mines and Geology: 53(1&2): 35-223, 199-202.

California Journal of Mines and Geology (1957): 53(3&4): 547.

Wetzel, N. (1978), MAS File Report on the Blue Moon - American Eagle Mines, Mariposa County, California. U.S. Bureau of Mines File Report, June 1978, 5 pp.

Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 84, 103, 134.

North American Gold Mining Industry News (1984). Colony Pacific's Blue Moon Grade and Tonnage Estimates Up. November 9, 1984: 8.

Mining Activity Digest (1986), Exploration Briefs. Enginerring & Mining Journal International Directory: 12(11) April 18, 1986.

Mining Journal (1986). Industry in Action: Westmins Good Grades.
Mining Journal: 306(7859), April 4, 1986.

Wright Engineers Limited (1986). Westmin Resources Ltd. - Blue Moon Project, California, U.S.A. Wright Engineers Property Evaluation Report, Volumes I & II, Project 1422, January, 1986.

War Minerals Report (1986). Blue Moon Mine Westmin Exploration Ltd. Preliminary Prospectus, February 25, 1986, 46 pp.

Colony Pacific 1991 Annual Report: 1, 7.

Randol Mining Directory (1996/97), U.S. Mines and Mining Companies: 150.

News Release. Colony Sells Blue Moon Property to Westmin. May 16, 1996. 1P.

Mineral List

Baryte Calcite Chalcocite Chalcopyrite

Galena Hematite Limonite Malachite

Muscovite var: Sericite Pyrite Quartz Sphalerite

Tetrahedrite

13 entries listed. 11 valid minerals.