Clinoferrosilite Hugh-Jones D A, Woodland A B, Angel R J American Mineralogist 79 (1994) 1032-1041 The structure of high-pressure C2/c ferrosilite and crystal chemistry of high-pressure C2/c pyroxenes P = 1.87 GPa _database_code_amcsd 0001680 9.540 8.996 5.008 90 103.01 90 C2/c atom x y z Biso Fe1 0 .9054 .25 .38 Fe2 0 .2721 .25 .28 Si .2988 .0882 .2225 .05 O1 .126 .095 .154 .30 O2 .377 .233 .373 .30 O3 .352 .053 .934 .30