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Bergenite

• 
  Streuberg Quarry, Bergen, Bergen U deposit, Zobes-Bergen District, Vogtland, Saxony, Germany
  © Paul Schumacher

• Formula:
  Ca₂Ba₄(UO₂)₉(PO₄)₆O₆ · 16H₂O

• System: Monoclinic

• Name:
  For Bergen, Saxony, Germany, close to which the type locality is situated.

• IMA Status: Valid (Grandfathered)

• Type Locality:
  Streuberg Quarry, Bergen, Bergen U deposit, Zobes-Bergen District, Vogtland, Saxony, Germany

• Dana 8th: 42.4.5.3
  
  42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
  4 : (AB)₅(XO₄)₂Z_q·xH₂O

• Density: 4.82 g/cm³ (calculated)

• Colour: Yellow