AM_Natrolite_4
Formula: Si3 Al2 Na2 O10
Name: Natrolite
Unit cell: 16.167 16.938 6.438 90.0 90.0 89.68 , V=1762.93
Space group: F112 (5)

Wang H , Bish D L , American Mineralogist , 93 (2008) p.1191-1194, A PH2O-dependent structural phase transition in the zeolite natrolite, Sample: alpha1-metanatrolite at 400 C, 0.15 mbar