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Rainy Creek Mine (W. R. Grace Mine), Libby, Libby District (Snowshoe District), Lincoln Co., Montana, USA

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Formerly the world's largest producer of vermiculite. Closed in 1990.





Mineral List:
  		•  Actinolite
    ☐Ca
     
    2
    		(Mg,Fe
    2+
     
    		)
     
    5
    		(Si
     
    8
    		O
     
    22
    		)(OH)
     
    2
    Reference: []
  		•  Apatite-(CaF)
    Ca
     
    5
    		[F|(PO
     
    4
    		)
     
    3
    		]
    Reference: []
  		•  'Asbestos'
    Reference: []
  		•  Baryte
    BaSO
     
    4
    Reference: []
  		•  Biotite
    Reference: []
  		•  Chrysotile
    Mg
     
    3
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    Reference: []
  		•  'Clinopyroxene Subgroup'
    Reference: []
  		•  Diopside
    CaMg[Si
     
    2
    		O
     
    6
    		]
    Reference: []
  		•  Ferro-edenite
    [Na][Ca
     
    2
    		][Fe
    2+
    5
    		][(OH)
     
    2
    		|AlSi
     
    7
    		O
     
    22
    		]
    Reference: []
  		•  Hydrobiotite
    Reference: []
  		•  Magnesio-arfvedsonite
    [Na][Na
     
    2
    		][Mg
     
    4
    		Fe
    3+
     
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: []
  		•  Magnesioriebeckite
    [ ][Na
     
    2
    		][Mg
     
    3
    		Fe
    3+
    2
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: []
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: []
  		•  Richterite
    Na[CaNa][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: []
  		•  Riebeckite
    var: Crocidolite
    Reference: []
  		•  Strontianite
    SrCO
     
    3
    Reference: []
  		•  Tremolite
    ☐[Ca
     
    2
    		][Mg
     
    5
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: []
  		•  Vermiculite
    (Mg,Fe,Al)
     
    3
    		(Al,Si)
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·4H
     
    2
    		O
    Reference: []
  		•  Winchite
    ☐[CaNa][Mg
     
    4
    		(Al,Fe
    3+
     
    		)][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: []


    19 entries listed. 15 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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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Jobs in Montana, 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 01:49:32