AM_Nambulite Formula: (Li.55 Na.45) Mn4 Si5 O15 Name: Nambulite Unit cell: 7.621 11.761 6.731 92.767 95.083 106.867 , V=573.34 Space group: P-1 (2)

Narita H , Koto K , Morimoto N , Yoshii M , Acta Crystallographica, Section B , 31 (1975) p.2422-2426, The crystal structure of nambulite (Li,Na)Mn4Si5O14(OH)