AM_Gillespite_3 Formula: Ba Fe Si4 O10 Name: Gillespite Unit cell: 7.349 7.515 7.894 90.0 90.0 90.0 , V=435.97 Space group: P21212 (18)

Hazen R M , Burnham C W , American Mineralogist , 60 (1975) p.937-938, The Crystal Structure of Gillespite II at 26 Kilobars: Correction and Addendum