AM_Mordenite_2 Formula: K.66 Na.56 Ca.4 (Si9.96 Al2.04) O30.94 H22 Name: Mordenite Unit cell: 18.109 20.485 7.523 90.0 90.0 90.0 , V=2790.75 Space group: CMCM (63)

Passaglia E , Artioli G , Gualtieri A , Carnevali R , European Journal of Mineralogy , 7 (1995) p.429-438, Diagenetic mordenite from Ponza, Italy, Locality: Ponza, Italy