AM_Clinoptilolite-Na_2 Formula: Na1.64 Ca.772 K.1 Mg.05 (Al4.08 Si13.92) O44.82 H8.82 Name: Clinoptilolite-Na Unit cell: 17.607 17.692 7.412 90.0 116.84 90.0 , V=2060.13 Space group: C12/M1 (12)

Armbruster T , Gunter M E , American Mineralogist , 76 (1991) p.1872-1883, Stepwise dehydration of heulandite-clinoptilolite from Succor Creek, Oregon,, U.S.A.: A single-crystal X-ray study at 100K, sample name: dehyd2