Phase-B-anhydrous Hazen R M, Finger L W, Ko J American Mineralogist 77 (1992) 217-220 Crystal chemistry of Fe-bearing anhydrous phase B: Implications for transition zone mineralogy _database_code_amcsd 0001445 5.908 14.241 10.069 90 90 90 Pmcb atom x y z occ Biso Si1 0 0 0 .40 Si2 .5 .3117 .17584 .40 Si3 0 .37466 .99769 .36 Mg1 .5 0 .5 .881 .62 Fe1 .5 0 .5 .119 .62 Mg2 .5 .17325 .35657 .910 .63 Fe2 .5 .17325 .35657 .080 .63 Mg3 .5 0 0 .591 .53 Fe3 .5 0 0 .409 .53 Mg4 .24024 .00208 .25556 .925 .51 Fe4 .24024 .00208 .25556 .075 .51 Mg5 0 .17678 .82023 .912 .52 Fe5 0 .17678 .82023 .088 .52 Mg6 .24384 .16952 .08159 .887 .50 Fe6 .24384 .16952 .08159 .113 .50 O1 0 .9136 .3471 .46 O2 0 .5752 .3541 .50 O3 0 .2419 .4960 .51 O4 .5 .0863 .1738 .54 O5 .5 .4248 .1700 .49 O6 .5 .7605 .4706 .56 O7 .2323 .0881 .4207 .63 O8 .2121 .4267 .4253 .47 O9 .2834 .7622 .2521 .50