Ferrosilite
Sueno S, Cameron M, Prewitt C T
American Mineralogist 61 (1976) 38-53
Orthoferrosilite: High-temperature crystal chemistry
T = 980 deg C
_database_code_amcsd 0000492
18.614 9.172 5.3199 90 90 90 Pbca
atom      x     y     z B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3)  B(2,3)
Fe1  .37467 .6505 .8992 .00162 .00800 .01652  .00004 -.00085  .00034
Fe2  .37637 .4886 .3964 .00222 .01090 .02556 -.00048 -.00261  .00000
Si1   .2729 .3374 .0695 .00098 .00669 .01154 -.00015  .00014 -.00154
Si2   .4755 .3353 .7725 .00099 .00590 .01555  .00013 -.00054  .00120
O1A   .1862 .3394 .0669 .00093 .00969 .01998 -.00017  .00033  .00161
O2A   .3120 .4910 .0921 .00219 .00733 .02027 -.00136  .00024 -.00070
O3A   .3005 .2491 .8225 .00120 .01401 .02005  .00034 -.00035 -.01087
O1B   .5623 .3401 .7727 .00137 .00921 .02172 -.00064 -.00075  .00015
O2B   .4348 .4847 .7117 .00272 .00895 .02283  .00149  .00015 -.00015
O3B   .4493 .2229 .5455 .00184 .01421 .02248 -.00113  .00081 -.00548