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Psilomelane from Mendocino County, California, USA

USA
 
  • California
    • Mendocino County
      • Coastal Range
        • Bowman Place
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
        • Calpella
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 298.
Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 42-43
        • DeCamp
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
        • Duncan Springs
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 304.
Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 39-49
        • Fair Oaks
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
        • Hearst
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
          • Sanhedrin Mountain
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 298.
Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 44
        • Longvale
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
        • McClure Place
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
        • Middle Fork Eel River
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 298.
Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 40
        • Potter Valley area
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 298.
Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 40
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 298.
Bradley, W.W., Huguenin, Emile, Logan, C.A., Tucker, W.B., and Waring, C.A. (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 46
        • Redwood Valley
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
        • Reeves Place
          • Leech Lake Mountain
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
      • Pieta
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
      • Potter Valley
        • Potter Valley
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 298, 304.
Bradley, W.W., et al (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 42-43
      • Redwood Valley
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 298.
Bradley, W.W., Huguenin, Emile, Logan, C.A., Tucker, W.B., and Waring, C.A. (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 46
 
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