Database of Zeolite Structures
 

Framework Type NAB
Type Material
  Material Name: Nabesite    
 
Chemical Formula:
 
|Na+8 (H2O)16| [Be4Si16 O40]-NAB
 
   
Unit Cell:
 
orthorhombic

 P 21 21 21 (# 19)
    a = 9.7480Å b = 10.1330Å c = 11.9540Å  
    α = 90.000 ° β = 90.000° γ = 90.000°  
   
Framework density:
 
16.9 T/1000 Å3
 
 
Channels:
 
[110] 9 2.7 x 4.1* <-> [-1 -1 0] 9 3.0 x 4.6* (3-dimensional)
 
Stability:
 
reversable dehydration
   
References:
    Petersen, O.V., Giester, G., Brandstätter, F. and Niedermayr, G.
   "Nabesite, Na2BeSi4O10.4H2O, a new mineral species from the Ilímaussaq alkaline complex, South Greenland"
   Can. Mineral., 40, 173-181 (2002)
 
 
Name and Code derivation:
    Nabesite
  NAB
Limiting Rings
 
9-ring viewed along [110]

9-ring viewed along [-1-1 0]