AM_Ralstonite_1 Formula: (Al1.548 Mg.452) Na.41 F4.578 O2.258 H3.094 Name: Ralstonite Unit cell: 9.91 9.91 9.91 90.0 90.0 90.0 , V=973.24 Space group: FD3M (227)

Effenberger H , Kluger F , Neues Jahrbuch fur Mineralogie, Monatshefte , 1984 (1984) p.97-108, Ralstonite: a contribution to the knowledge of composition and crystal structure, Locality: Ivigtut, Greenland