AM_Natrolite_13 Formula: Na2 (Si3.073 Al1.927) O12 H4 Name: Natrolite Unit cell: 18.347 18.561 6.587 90.0 90.0 90.0 , V=2243.13 Space group: FDD2 (43)

Alberti A , Cruciani G , Dauru I , European Journal of Mineralogy , 7 (1995) p.501-508, Order-disorder in natrolite-group minerals