AM_Syngenite Formula: K2 Ca S2 O9 H2 Name: Syngenite Unit cell: 9.77 7.15 6.25 90.0 104.0 90.0 , V=423.63 Space group: P121/M1 (11)

Corazza E , Sabelli C , Zeitschrift fur Kristallographie , 124 (1967) p.398-408, The crystal structure of syngenite, K2Ca(SO4)2*(H2O), Locality: Kalasz, Galicia