AM_Clinoptilolite-Na_3 Formula: Na1.56 Ca.66 K.36 (Al4.08 Si13.92) O43.96 H7.96 Name: Clinoptilolite-Na Unit cell: 17.576 17.58 7.403 90.0 116.97 90.0 , V=2038.65 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: dehyd3