IdrialiteSkaggs Springs Mine, Skaggs Springs, Warm Springs Dam, Coast Range, Sonoma Co., California, USA
Photo: Caltech A Hg mine located in secs. 23, 24 & 26, T10N, R11W, MDM, at Skaggs Springs, 15 miles NW of Healdsburg.
Mineralization is hosted in rocks of the Franciscan Formation (sandstone and shale). The Franciscan rocks are cut by numerous fractures that have been filled by opal, idrialite, realgar, orpiment and the Hg ore minerals.
References
Wright, F.E. & E.T. Allen (1925), Curtisite, a new organic mineral from Skaggs Springs, Sonoma County, California (abstract): American Mineralogist: 11: 67 (1925) […American Mineralogist: 15: 169-173 (1930)]: 169.
Bradley, W.W. (1937), Thirty-third report of the State Mineralogist: California Division Mines Report 33: 345.
Bradley, W.W. (1939), Thirty-fifth report of the State Mineralogist: California Division Mines Report 35: 469.
Ransome, Alfred Leslie & J.L. Kellogg (1939), Quicksilver resources of California: California Journal of Mines and Geology, California Division Mines (Report 35): 35: 469.
Rocks & Minerals (1947): 22: 612.
Everhart, Donald Lough (1950a), Skaggs Springs quicksilver mine, Sonoma County, California: California Journal of Mines and Geology: 46: 385-394.
Holmes, Jr., G.W. (1965), Mercury in California: in: U.S. Bureau of Mines Information Circular 8252: 122.
Strunz, Hugo and Contag, B. (1965), Evenkit, Flagstaffit, Idrialin und Reficit. Neues Jahrbuch für Mineralogie, Monatshefte: 1: 19-25.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 150, 165, 263, 276, 283, 319.
Geissman, T.A., Sun, K.Y., and Murdoch, J. (1967) Organic minerals. Picine and chrysene as constituents of the mineral curtisite (idrialite). Experentia: 23: 793-794.
White, D.E. (1967) Mercury and base-metal deposits with associated thermal and mineral waters. In: H.L. Barnes (Editor), Geochemistry of hydrothermal ore deposits. Holt Reinhart and Winston, New York: 590.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 124, 132, 343, 355, 427.
American Mineralogist (2009): 94: 1325–1332.
Mineral List
10 entries listed. 9 valid minerals.
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