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Widow No. 7 Mine (Old Widow), Ryan, Furnace Creek Borate District, Death Valley National Monument, Death Valley, Inyo Co., California, USA

REF:Deposit:: EVANS, J.R., TAYLOR, G.C., AND RAPP, J.S., 1976, MINES AND MINERAL DEPOSITS IN DEATH VALLEY NATIONAL MONUMENT, CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY SPECIAL REPORT 125, 61 P
Other Database:: CIMRI
Reserve-Resource:: EVANS AND OTHERS, 1976.
Commodities (Major) - Boron-Borates
Development Status: Past Producer
Deposit Model: 260: Lacustrine borates
Host Rock Unit: Furnace Creek Formation
Host Rock: Limestone, Shale





Map Reference: 36°17'47"N , 116°39'54"W

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Mineral List:
  • Calcite
    CaCO
     
    3
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  • Colemanite
    Ca[B
     
    3
    O
     
    4
    (OH)
     
    3
    ] · H
     
    2
    O
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
    Site Photo
    Widow No. 7 Mine (Old Widow), Ryan, Furnace Creek Borate District, Death Valley National Monument, Death Valley, Inyo Co., California, USA
     
  • Probertite
    NaCaB
     
    5
    O
     
    7
    (OH)
     
    4
    ·3H
     
    2
    O
    Reference: [Am Min (1931), 16:338-341]
  • Ulexite
    NaCa[B
     
    5
    O
     
    6
    (OH)
     
    6
    ] · 5H
     
    2
    O
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]


    4 entries listed. 4 valid minerals.

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