AM_Yugawaralite_3 Formula: Ca Al2 Si6 O20.038 H7.909 Name: Yugawaralite Unit cell: 6.7 13.972 10.039 90.0 111.07 90.0 , V=876.94 Space group: P1C1 (7)

Kvick A , Artioli G , Smith J V , Zeitschrift fur Kristallographie , 174 (1986) p.265-281, Neutron diffraction study of the zeolite yugawaralite at 13 K, Locality: Hvalfjordur, Iceland, Sample: T = 13 K