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Big Chief Mine ("Kentrolite locality"), Percha Creek, Hillsboro, Hillsboro District, Sierra Co., New Mexico, USA

Located on a promontory atop cliffs overlooking the Percha Creek, about 2.5 miles (4 km) east of Hillsboro and across the canyon of Percha Creek from the Macy Mine.

The mineralization is apparently a vertical, or nearly so, vein running along the top of the cliffs and striking roughly north-south.

Workings visible from the surface (January 2008) include a small exploratory shaft, about 1 meter square, of unknown depth. The southern end of the vein has been excavated with an open cut about 3 meters wide and up to 3 meters deep, with the deeper end toward the north. At the bottom of the north end of the cut there is an undercut opening of about 1 to 2 meters in size. On the north (uphill) end of the vein, there is a trench about 100 feet long and which was apparently excavated to expose the length of the deposit.





Mineral List:
  • Calcite
    CaCO
     
    3
    Reference: [Eckhard Stuart & Chet Lemanski 1/28/08]
  • Kentrolite
    Pb
     
    2
    Mn
    3+
    2
    [O
     
    2
    |Si
     
    2
    O
     
    7
    ]
    Reference: [NMBMMR New Mexico Mineral symposium (2001) pp. 4-5]
    Site Photo
    Big Chief Mine ("Kentrolite locality"), Percha Creek, Hillsboro, Hillsboro District, Sierra Co., New Mexico, USA
    © FL Murray
  • Quartz
    SiO
     
    2
    Reference: [Eckhard Stuart & Chet Lemanski 1/28/08]
  • Vanadinite
    Pb
     
    5
    [Cl|(VO
     
    4
    )
     
    3
    ]
    Reference: [NMBMMR New Mexico Mineral symposium (2001) pp. 4-5]
  • 'Wad'
    Habit: Botryoidal, massive, films
    Colour: Black
    Fluorescence: None.
    Reference: [Chet Lemanski 1/28/08]
  • Wulfenite
    Pb[MoO
     
    4
    ]
    Reference: [NMBMMR New Mexico Mineral symposium (2001) pp. 4-5]


    6 entries listed. 5 valid minerals.

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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Jobs in New Mexico, USA Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 28th Nov 2009 14:22:53