Picacho Mine (Picachos Mine; Los Picachos Mine; Picahotes Mine; Benta Mine; Hernandez Mine; Ramirez Mine; Bonanza Mine), New Idria District, Diablo Range, San Benito Co., California, USA
A former Hg mine located in the E½SE¼NW¼NE¼ sec. 19, T18S, R12E, MDM, on the SW edge of the New Idria serpentione body.
Mineralization is hosted in the Panoche Upper Cretaceous sandstone and shale.
Local structures include a NW-trending, SW-dipping shear zone.
References:
Rogers, Austin Flint (1912), Notes on rare minerals from California: Columbia University, School of Mines Quarterly: 33: 373, 374.
Bradley, W.W. (1918), Quicksilver resources of California, with a section on metallurgy and ore dressing: California Mining Bureau. Bulletin 78, 389 pp.
Ransome, Alfred Leslie & J.L. Kellogg (1939), Quicksilver resources of California: California Journal of Mines and Geology, California Division Mines (Report 35): 35: 353-486.
Eckel, Edwin Butt & W.B. Myers (1946), Quicksilver deposits of the New Idria district, San Benito and Fresno Counties, California: California Journal of Mines and Geology, California Division Mines (Report 42): 42: 81-124.
Averill, Charles V. (1947), Mines and mineral resources of San Benito County: California Journal of Mines and Geology, California Division Mines (Report 43): 43: 41-60.
Holmes, G.H. (1965) Mercury in California. US Bureau of Mines Information Circular 8252.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 262, 379.
Murdoch, Joseph and Geissman, T.A. (1967) Pendletonite, a new hydrocarbon mineral from California. American Mineralogist: 52: 611-616.
Murdoch, Joseph and Geissman, TA. (1968) Pendletonite: a correction American Mineralogist: 53: 1061-1062.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 343.
Bailey, E. H., USGS, personal files.
Echigo, T., Kimata, M., Maruoka, T. (2007): Crystal-chemical and carbon-isotopic characteristics of karpatite (C24H12) from the Picacho Peak Area, San Benito County, California: Evidences for the hydrothermal formation, American Mineralogist: 92: 1262-1269.
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Map Reference: 36°20'48"N , 120°41'39"W
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Mineral List:7 entries listed. 6 valid minerals.
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