AM_Wenkite Formula: (Ba3.5 K.5) (Ca5.5 Na.5) Si11 Al9 S3 O55 H2 Name: Wenkite Unit cell: 13.511 13.511 7.462 90.0 90.0 120.0 , V=1179.67 Space group: P-62M (189)

Merlino S , Acta Crystallographica, Section B , 30 (1974) p.1262-1266, The crystal structure of wenkite, Locality: Candoglia, Italy