Database of Zeolite Structures
 

Framework Type MON
Reference Material
  Material Name: Montesommaite    
 
Chemical Formula:		  
|(K,Na)4.5 (H2O)5 | [Al4.5Si11.5O32]-MON		  
   
Unit Cell: 		 
tetragonal
 I 41/a m d (# 141)
    a' = 7.1410 Å b' = 7.1410 Å c' = 17.3070 Å  
    α' = 90.000° β' = 90.000° γ' = 90.000°  
   
Framework Density: 		 
18.1 T/1000 Å3
 
  
Channels: 		 
[100] 8 3.3 x 3.3* <-> [001] 8 3.6 x 3.6*
Dimensionality
  Sorption (molecular cross section > 3.4Å): 1-dimensional
  Topological (pore opening > 6-ring): 3-dimensional
   
References:
  Rouse, R.C., Dunn, P.J., Grice, J.D., Schlenker, J.L. and Higgins, J.B.
  "Montesommaite, (K,Na)9Al9Si23O64·10H2O, a new zeolite related to merlinoite and the gismondine group"
Am. Mineral., 75, 1415-1420 (1990)
 
  
Name and Code derivation:
    Montesommaite
  MON
Limiting Rings
 
8-ring viewed along [100]

8-ring viewed along [001]


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