AM_Wilkinsonite Formula: Na Fe2.75 Si3 O10 Name: Wilkinsonite Unit cell: 10.3355 10.7847 8.9142 105.048 96.461 125.302 , V=738.37 Space group: P-1 (2)

Burt J B , Downs R T , Costin G , Acta Crystallographica, Section E , 63 (2007) p.i122-i124, Single-crystal X-ray refinement of wilkinsonite, Na2Fe2+4Fe3+2Si6O20., Locality: Warrumbungle Volcano, central New South Wales, Australia