Database of Zeolite Structures
 

Framework Type STI
Reference Material
  Material Name: Stilbite    
 
Chemical Formula:
 
|Na4Ca8 (H2O)56 |1/2 [Al20Si52O144]1/2-STI
 
   
Unit Cell:§
 
monoclinic

 C 1 2/m 1 (# 69)
    a' = 13.6400 Å b' = 18.2400 Å c' = 11.2700 Å  
    α' = 90.000° β' = 128.000° γ' = 90.000°  
(Relationship to unit cell of Framework Type: a' = a, b' = b , c' = c/(2sin(β'))
or, as vectors, a' = a, b' = b, c' = (c - a)/2)
   
Framework Density:
 
16.3 T/1000 Å3
 
 
Channels:
 
[100] 10 4.7 x 5.0* <-> [001] 8 2.7 x 5.6*
Dimensionality
  Sorption (molecular cross section > 3.4Å): 1-dimensional
  Topological (pore opening > 6-ring): 2-dimensional
   
References:
  Galli, E. and Gottardi, G.
  "The crystal structure of stilbite"
Miner. Petrogr. Acta, 12, 1-10 (1966)
Material name:   Stilbite
Chemical formula:   [Al20Si52O144]1/2-STI
  § Galli, E.
  "Refinement of the crystal structure of stilbite"
Acta Crystallogr., B27, 833-841 (1971)
  Slaughter, M.
  "Crystal structure of stilbite"
Am. Mineral., 55, 387-397 (1970)
Material name:   Stilbite
Chemical formula:   [Al20Si52O144]1/2-STI
 
 
Name and Code derivation:
    Stilbite
  STI
 
 
§ Chemical Formula and Unit Cell taken from the reference marked with this sign
Limiting Rings
 
10-ring viewed along [100]

8-ring along [001]