Mineral Information and Data:

Jarlite
Na2(Sr,Na)14Mg2Al12F64(OH,H2O)4 [CNMNC approved formula]

Named for Carl Frederik Jarl (1872-19510, Formerly President of the Danish Cryolite Company, who first noted the mineral.

IMA status : Valid species (Pre-IMA 1933) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
11.06.10.01  
  (11) Halide Complexes; Alumino-fluorides
  (11.06) with miscellaneous formulae
  (11.06.10) Jarlite Group
  
Nickel-Strunz
(10th edition) :
03.CC.20
  (03) Halides
  (03.C) Complex Halides
  (03.CC) Soro-aluminofluorides
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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