Clinoferrosilite
Sueno S, Kimata M, Prewitt C T
American Mineralogist 69 (1984) 264-269
The crystal structure of high clinoferrosilicate
T = 1050 C
_database_code_amcsd 0000936
9.928 9.179 5.338 90 110.20 90 C2/c
atom     x     y     z Biso
Fe1      0 .9014   .25 2.03
Fe2      0 .2625   .25 2.84
Si   .2962 .0852 .2708 1.90
O1   .1241 .0903 .1587 3.28
O2   .3747 .2398 .3616 2.23
O3   .3589 .0134 .0445 2.40