Marguerite Mine, Rock Creek, Placer Co., California, USA
A former Au-Cu-Pb mine.
Mineralization is hosted in serpentinite.
ReferencesCrawford, James John (1894), Gold Placer County: Twelfth report of the State Mineralogist: California Mining Bureau. Report 12: 210.
Crawford, James John (1896), Thirteenth report of the State Mineralogist: California Mining Bureau. Report 13: 282-283.
Waring, Clarence A. (1917), Placer County: Report 15 of the State Mineralogist, California State Mining Bureau: 344.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 256.
6 entries listed. 5 valid minerals.
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Locality Updated: Gruvdalen Mine (Skeppsdal), Österåker, Uppland, SwedenFrom Knut Edvard Larsen, 26th Jul 2014 13:11:57