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School Section mine (Shipley Cut; Meyers Cut), Eight Mile Park pegmatite District, Fremont Co., Colorado, USA

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In the southwestern part of Eight Mile Park in sec. 16, T. 18 S., R. 71 W.

Ref.: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 852.

Pearl, 1958. Colorado Gem Trails & Mineral Guide, p.123.

Eckel, 1997. Minerals of Colorado (updated & revised), p.15.





Mineral List:
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  Albite
    var: Cleavelandite
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  Albite
    var: Oligoclase-Albite
    Reference: [AmMin 32:518-526 (1947)]
  		•  'Apatite'
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Apatite-(CaF)
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  Beryl
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  Beyerite
    Ca(BiO)
     
    2
    		(CO
     
    3
    		)
     
    2
    Reference: [Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 282; Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  Biotite
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  Bismutite
    (BiO)
     
    2
    		CO
     
    3
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  Calcite
    CaCO
     
    3
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  Chalcocite ?
    Cu
     
    2
    		S
    Description: Proved to be djurleite
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  'Chlorite Group'
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Chrysocolla
    (Cu,Al)
     
    2
    		H
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    		·nH
     
    2
    		O
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Columbite
    (Fe,Mn)(Nb,Ta)
     
    2
    		O
     
    6
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  Covellite
    CuS
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Djurleite
    Cu
     
    31
    		S
     
    16
    Reference: [Minerals of Colorado (1997) Eckel, E. B.]
  		•  'Garnet Group'
    X
     
    3
    		Z
     
    2
    		(TO
     
    4
    		)
     
    3
    		 (X = Ca, Fe, etc·, Z = Al, Cr, etc·, T = Si, As, V)
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  Malachite
    Cu
     
    2
    		[(OH)
     
    2
    		|CO
     
    3
    		]
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Microcline
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  Muscovite
    KAl
     
    2
    		[(OH)
     
    2
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  Quartz
    SiO
     
    2
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  Schorl
    [Na][Fe
    2+
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
    Reference: [Pearl, 1958. Colorado Gem Trails & Mineral Guide]
  		•  'Sericite'
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Silver
    Ag
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Thorite
    (Th,U)[SiO
     
    4
    		]
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  'Tourmaline'
    AD
     
    3
    		G
     
    6
    		(BO
     
    3
    		)
     
    3
    		[T
     
    6
    		O
     
    18
    		]Y
     
    3
    		Z
    Habit: Radiating "suns" to 4 feet in diameter
    Reference: [U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.]
  		•  Triplite
    (Mn
    2+
     
    		,Fe
    2+
     
    		)
     
    2
    		[(F,OH)|PO
     
    4
    		]
    Reference: [Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 852; Pearl, 1958. Colorado Gem Trails & Mineral Guide.]


    27 entries listed. 18 valid minerals.

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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Jobs in Colorado, 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: 30th Nov 2009 10:49:41