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Sugar Loaf Mine, Sugarloaf (4), East Shasta Copper - Zinc District, Klamath Mts, Shasta Co., California, USA

Latitude: 40°45'7"N
Longitude: 122°5'32"W

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A Cu occurrence/mine located in sec. 4, T33N, R2W, MDM, 0.3 km (1,100 feet) ESE of Sugarloaf (coordinates of record), on National Forest land. MRDS database accuracy for this location is not stated.

Mineralization is a replacement vein deposit, hosted in rhyolite. Ore controls included a contact zone. This prospect is on a contact between the Bully Hill Rhyolite and the Pit Formation. Local rocks include Triassic marine rocks, unit 2 (Eastern Klamath Mountains).

Workings include underground openings with a length of 327.66 meters and an overall depth of 48.77 meters. Operations include adits. The upper adit is 250 feet in length and the lower adit is 800 feet in length. Two feet of ore was located in the last 25 to 30 feet of the lower adit.

Mineral List

Baryte
Chalcopyrite

Dolomite
Galena

Pyrite
Quartz

Sphalerite
Tetrahedrite

8 entries listed. 8 valid minerals.

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References

Albers, John P. & Jacques F. Robertson (1961), Geology and ore deposits of East Shasta copper-zinc district, Shasta County, California, USGS Professional Paper 338: 102.

USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10033888.

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the 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 hundreds 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.
Current server date and time: 15th Jun 2012 00:45:36