A former Hg mine located in sec. 23, T10N, R7W, MDM, near Middletown and Mount St. Helena (not Mt Saint Helens). Started 1870. NOTE: Curtisite needs to be researched & entered.
References:
Crawford, James John (1894), Twelfth report of the State Mineralogist: California Mining Bureau. Report 12: 360.
Ransome, Alfred Leslie & J.L. Kellogg (1939), Quicksilver resources of California: California Division Mines Report 35: 392.
Rocks & Minerals: 19: 40-41, 346.
Rocks & Minerals: 22:613-614.
Rocks & Minerals: 23:797.
Bradley, W.W. (1939), Thirty-fifth report of the State Mineralogist: California Division Mines Report 35: 393.
Nichols, J.B. (1948) Minerals of Lake County, California. Mineralogist: 16: 171-177., 176.
Davis, F.F. and E.H. Bailey (1966) Mercury. California Division Mines and Geol. Bulletin 191: 247-254.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 165, 172, 260, 262.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 111 (map 3-7), 219, 342.
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Map Reference: 38°42'1"N , 122°36'2"W
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Mineral List:6 entries listed. 5 valid minerals.
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