Mineral Information and Data:

Stenonite
Sr2Al(CO3)F5 [CNMNC approved formula]

Named for Nicholaus Stenonis (Steno) (1638-1686), Danish scientist, who determined the constancy of interfacial angles of crystals.

IMA status : Approved Species 1962 ()
CLASSIFICATION 
Dana
(8th edition) :
12.01.01.01  
  (12) Compound Halides
  (12.01) with miscellaneous anions
  (12.01.01)
  
Nickel-Strunz
(10th edition) :
03.CG.05
  (03) Halides
  (03.C) Complex Halides
  (03.CG) Aluminofluorides with CO3, SO4, PO4
  
Crystal system: Monoclinic System
Point group (H-M): 2/m — prismatic
  
  
  

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