AM_Clinoptilolite-Na_5
Formula: Na2.06 Si16.4 Al1.6 O47.56 H30
Name: Clinoptilolite-Na
Unit cell: 17.641 18.031 7.402 90.0 116.43 90.0 , V=2108.37
Space group: C12/M1 (12)

Alberti A , Tschermaks Mineralogische und Petrographische Mitteilungen , 22 (1975) p.25-37, The crystal structure of two clinoptilolites, Locality: Alpe di Siusi, Italy