AM_Nabesite Formula: Na2 Be Si4 O14 H8 Name: Nabesite Unit cell: 9.748 10.133 11.954 90.0 90.0 90.0 , V=1180.77 Space group: P212121 (19)

Petersen O V , Giester G , Brandstatter F , Niedermayr G , The Canadian Mineralogist , 40 (2002) p.173-181, Nabesite, Na2BeSi4O10.4H2O, a new mineral species from the Ilimaussaq alkaline, complex, South Greenland, Sample: T = 293 K, Locality: Ilimaussaq alkaline complex, South Greenland