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Teófilo Otoni, Mucuri valley, Minas Gerais, Southeast Region, Brazil

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Article entry:
Fipp 2008 Brazil Gem ShowEdgar Poubel de Matos Fernandes




Group 4 - Oxides and Hydroxides
  		• Chrysoberyl4.BA.05
    BeAl
     
    2
    		O
     
    4
  		• Quartz4.DA.05
    SiO
     
    2
      var: Rutilated Quartz4.DA.05
    SiO
     
    2
      var: Smoky Quartz4.DA.05
    SiO
     
    2
  		• Rutile4.DB.05
    TiO
     
    2
    Group 9 - Silicates
  		• Beryl
    var: Aquamarine    		9.CJ.05
    Be
     
    3
    		Al
     
    2
    		Si
     
    6
    		O
     
    18
  		• Haiweeite9.AK.25
    Ca(UO
     
    2
    		)
     
    2
    		[Si
     
    5
    		O
     
    12
    		(OH)
     
    2
    		]·4.5H
     
    2
    		O
  		• Schorl9.CK.05
    [Na][Fe
    2+
    3
    		][Al
     
    6
    		][(OH)
     
    3
    		|OH|(BO
     
    3
    		)
     
    3
    		|Si
     
    6
    		O
     
    18
    		]
  		• Topaz9.AF.35
    Al
     
    2
    		[(F,OH)
     
    2
    		|SiO
     
    4
    		]


    9 entries listed. 9 valid minerals.

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