Napa Mine, Castle Rock Springs area, West Mayacmas District, Mayacmas Mts (Mayacamas Mts), Sonoma Co., California, USA
A Hg occurrence/mine located 4.1 km (2.6 miles) S of Castle Rock Springs.
ReferencesFortsner, William (1908), Quicksilver Resources of California: California Division of Mines and Geology Bulletin 27, 270 p.
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(4): 353-486.
Holmes, Jr., G.W. (1965), Mercury in California: in: U.S. Bureau of Mines Information Circular 8252.
1 entry listed. 1 valid mineral.
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Locality Updated: Cold Valley, Bad Harzburg, Harz, Lower Saxony, GermanyFrom Frank K. Mazdab, 10th Dec 2013 08:40:40