AM_Emeleusite
Formula: Na2 Li Fe Si6 O15
Name: Emeleusite
Unit cell: 10.072 17.337 14.004 90.0 90.0 90.0 , V=2445.35
Space group: ACAM (64)

Johnsen O , Nielsen K , Sotofte I , Zeitschrift fur Kristallographie , 147 (1978) p.297-306, The crystal structure of emeleusite,, a novel example of sechser-doppelkette, Locality: Igdlutalik Island, Julianchab District, Greenland