Mineral Information and Data:

Manganolangbeinite
K2Mn2+2(SO4)3 [CNMNC approved formula]

Named as a manganese compound analogous to langbeinite.

IMA status : Valid species (Pre-IMA 1924) Grandfathered
CLASSIFICATION 
Dana
(8th edition) :
28.04.04.02  
  (28) Anhydrous Acid and Sulfates
  (28.04) with miscellaneous formulae
  (28.04.04) Langbeinite Series
  
Nickel-Strunz
(10th edition) :
07.AC.10
  (07) Sulfates (selenates, tellurates, chromates, molybdates, wolframates)
  (07.A) Sulfates (selenates, etc.) without Additional Anions, without H2O
  (07.AC) With medium-sized and large cations
  
Crystal system: Cubic System
Point group (H-M): 23 — tetartoidal
  
  
  

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