AM_Clinoptilolite-K_1 Formula: (Si14.52 Al3.48) O38.42 Na.38 Ca.16 Ba.16 K1.08 H2.42 Name: Clinoptilolite-K Unit cell: 17.61 17.456 7.36 90.0 116.77 90.0 , V=2019.98 Space group: C12/M1 (12)

Armbruster T , American Mineralogist , 78 (1993) p.260-264, Dehydration mechanism of clinoptilolite and heulandite: Single-crystal X-ray, study of Na-poor, Ca-, K-, Mg-rich clinoptilolite at 100 K, Sample Dehyd 3, Data obtained from the ICSD