Mineral Information and Data:

Rontgenite-(Ce)
Ca2Ce3(CO3)5F3 [CNMNC approved formula]

Named for William Conrad von Rontgen (1845-1923), German physicist and discoverer of X-rays.

IMA status : Approved Species 1953 ()
CLASSIFICATION 
Dana
(8th edition) :
16a.01.06.01  
  (16a) Carbonates - Hydroxyl or Halogen
  (16a.01) in the Bastnasite/Shynchysite/Parasite Groups
  (16a.01.06)
  
Nickel-Strunz
(10th edition) :
05.BD.20d
  (05) Carbonates and Nitrates
  (05.B) Carbonates with additional anions, without H2O
  (05.BD) With rare earth elements (REE)
  
Crystal system: Trigonal System
Point group (H-M): 3 — pyramidal
  
  
  

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