Mineral Information and Data:

Biraite-(Ce)
Ce2Fe2+Si2O7(CO3) [CNMNC approved formula]

Named after the locality: Biraia, Vitim, Irkutsk Oblast, Zabaikalye, (Siberia), Russia.

IMA status : Approved Species 2003 ()
CLASSIFICATION 
Dana
(8th edition) :
56.05.02.01  (This Dana# Added)
  (56) Sorosilicate Si2O7 Groups and O, OH, F. and H2O
  (56.05)
  (56.05.02)
  
Nickel-Strunz
(10th edition) :
09.BE.90
  (09) Silicates
  (09.B) Sorosilicates (dimer) structures
  (09.BE) Si2O7 groups, with additional anions; cations in octahedral [6] and greater coordination
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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