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Madonna No. 3 pegmatite (Madonna Western pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA

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Sec 2 T8S R70W





Mineral List:
  		•  Fluorite
    CaF
     
    2
    Description: Selective replacement of quartz in a graphic granite resulted in a graphic fluorite-feldspar rock.
    Reference: [Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Ser 11]
  		•  Fluorite
    var: Yttrofluorite
    (Ca,Y)F
     
    2+x
    Reference: [Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Ser 11]
  		•  'Gadolinite'
    Reference: [Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Ser 11]
  		•  Microcline
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Ser 11]
  		•  'Monazite'
    Reference: [Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Ser 11]
  		•  Quartz
    SiO
     
    2
    Reference: [Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Ser 11]
  		•  Synchysite-(Y) ?
    Ca(Y,Ce)[F|(CO
     
    3
    		)
     
    2
    		]
    Reference: [Rare-Earth Pegmatites of the South Platte District, Colorado CGS Res Ser 11]


    7 entries listed. 4 valid minerals.

    The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
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