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Gesvrine, La-Chapelle-sur-Erdre, Nantes, Loire-Atlantique, Pays de Loire, France

Pegmatite found in 1991 during road works for the A821 highway.

Ref.:
Guiraud R. (2006) La bertrandite retrouvée. Le Cahier des Micomonteurs, 93, 26-33. (in French)





Mineral List:
  		•  Albite
  		• Anatase
  		• 'Apatite'
  		• Arsenopyrite
  		• Bertrandite
  		• Muscovite
  		• Orthoclase
    var: Adularia
  		• Quartz
  		• Rutile
  		• 'Sagenite'
  		• 'Tourmaline'


    11 entries listed. 7 valid minerals.

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