Gillespite_1 Formula: Ba Fe Si4 O10 Name: Gillespite Unit cell: 7.5164 7.5164 16.0768 90.0 90.0 90.0 , V=908.28 Space group: P4/NCC (130)
Hazen R M , Burnham C W , American Mineralogist , 59 (1974) p.1166-1176, The crystal structures of gillespite I and II: A structure determination at, high pressure, P = 1 atm