Mineral Information and Data:

Chladniite
Na2CaMg7(PO4)6 [CNMNC approved formula]

Named for Ernst Florens Friedrich Chladni (1756-1827), German physicist, University of Riga, Riga, Latvia who first espoused the extraterrestrial origin of meteorites.

IMA status : Approved Species 1994 ()
CLASSIFICATION 
Dana
(8th edition) :
38.02.05.03  
  (38) Anhydrous Phosphates, etc
  (38.02) (A+ B++)5 (XO4)3
  (38.02.05) Fillowite Group
  
Nickel-Strunz
(10th edition) :
08.AC.50
  (08) Phosphates, Arsenates, Vanadates
  (08.A) Phosphates, etc. without additional anions, without H2O
  (08.AC) With medium-sized and large cations
  
Crystal system: Trigonal System
Point group (H-M): 3 — rhombohedral
  
  
Geologic Setting: In iron and achrondite meteorites.
  

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