AM_Clinoptilolite-K Formula: (Si14.52 Al3.48) O38.58 Na.42 Ca.22 Ba.16 K1.06 H2.58 Name: Clinoptilolite-K Unit cell: 17.619 17.503 7.371 90.0 116.71 90.0 , V=2030.55 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 2, Data obtained from the ICSD