Mineral Information and Data:

Stornesite-(Y)
Na6(Ca5Na3)YMg43(PO4)36 [CNMNC approved formula]

Named after the locality: Johnston Fjord, Stornes Peninsula, Prydz Bay, East Antarctica.

IMA status : Approved Species 2005 ()
CLASSIFICATION 
Dana
(8th edition) :
38.02.05.06  (This Dana# Added)
  (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
  
  
  

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