Mineral Information and Data:

Megakalsilite
KAlSiO4 [CNMNC approved formula]

Named to reflect the large (MEGA) unit cell relative to kalsilite.

IMA status : Approved Species 2002 ()
CLASSIFICATION 
Dana
(8th edition) :
76.02.01.07  (This Dana# Added)
  (76) Tectosilicate Al-Si Framework
  (76.02) Feldspathoids and related species
  (76.02.01) Nepheline group
  
Nickel-Strunz
(10th edition) :
09.FA.05
  (09) Silicates
  (09.F) Tektosilicates without Zeolitic H2O
  (09.FA) Tektosilicates without additional non-tetrahedral anions
  
Crystal system: Hexagonal System
Point group (H-M): 6 — pyramidal
  
  
  

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