Mineral Information and Data:

Sulphohalite
Na6(SO4)2ClF [CNMNC approved formula]

Named after its composition of sulfate plus NaCl (halite).

IMA status : Valid species (Pre-IMA 1888) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
30.01.07.01  
  (30) Anhydrous Sulfates Containing Hydroxyl or Halogen
  (30.01) where (A B)m (XO4)p Zq where m:p>2:1
  (30.01.07)
  
Nickel-Strunz
(10th edition) :
07.BD.05
  (07) Sulfates (selenates, tellurates, chromates, molybdates, wolframates)
  (07.B) Sulfates (selenates, etc.) with Additional Anions, without H2O
  (07.BD) With only large cations
  
Crystal system: Cubic System
Point group (H-M): m3m (or 4/m 3 2/m) — hexoctahedral
  
  
  
Other Properties: H2O Soluble.

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