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Keays Quarry, Perth, Lanark Co., Ontario, Canada

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Ref.: Geological Survey of Canada Miscellaneous Report 41.

In pegmatite.

First major producer in the area in operation from 1921 to 1927. 18,903 tons of feldspar were mined. The operator was Rock Products Limited of Ohio. The pit is water-filled and measured 38 m x 15 m x 37 m.




Group 4 - Oxides and Hydroxides
  		• Magnetite4.BB.05
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
  		• Quartz4.DA.05
    SiO
     
    2
    Group 9 - Silicates
  		• Albite9.FA.35
    Na[AlSi
     
    3
    		O
     
    8
    		]
      var: Peristerite9.FA.35
    Na[AlSi
     
    3
    		O
     
    8
    		]
  		• Epidote9.BG.05
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Unclassified Minerals
  		• 'Bastnäsite'-
  		• 'Mica Group'-
  		• 'Tourmaline'-


    8 entries listed. 5 valid minerals.

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