AM_Sjogrenite Formula: (Mg.75 Fe.25) C.125 O2.875 H8 Name: Sjogrenite Unit cell: 3.13 3.13 15.66 90.0 90.0 120.0 , V=132.87 Space group: P63/MMC (194)

Ingram L , Taylor H F W , Mineralogical Magazine , 36 (1967) p.465-479, The crystal structures of sjoegrenite and pyroaurite, Locality: Sweden