AM_Laumontite_2
Formula: Si4 Al2 O16.323 Ca H12
Name: Laumontite
Unit cell: 14.8786 13.1708 7.5373 90.0 110.196 90.0 , V=1386.22
Space group: C12/M1 (12)

Fridriksson T , Bish D L , Bird D K , American Mineralogist , 88 (2003) p.277-287, Hydrogen-bonded water in laumontite I: X-ray powder diffraction, study of water site occupancy and structural changes in laumontite, during room-temperature isothermal hydration/dehydration, Sample: P = P = 37.6 mbar PH2O