Cordierite Hochella M F, Brown G E, Ross F K, Gibbs G V American Mineralogist 64 (1979) 337-351 High-temperature crystal chemistry of hydrous Mg- and Fe-cordierite White Well, T = 375 C _database_code_amcsd 0000706 17.113 9.741 9.358 90 90 90 Cccm atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Mg .1622 .5 .25 .955 .00075 .00259 .00436 0 0 .00010 Fe .1622 .5 .25 .045 .00075 .00259 .00436 0 0 .00010 Al11 .25 .25 .2500 .00093 .00224 .00272 .00022 0 0 Si16 0 .5 .25 .00060 .00245 .00228 0 0 0 Si21 .1920 .0783 0 .00060 .00155 .00239 .00011 0 0 Al26 .0506 .3076 0 .00062 .00220 .00268 .00021 0 0 Si23 -.1351 .2369 0 .00057 .00176 .00247 -.00014 0 0 O11 .2470 .1036 .1407 .00137 .00277 .00308 .00024 -.00040 -.00068 O16 .0620 .4166 .1512 .00090 .00376 .00331 .00024 -.00016 -.00150 O13 -.1736 .3090 .1418 .00111 .00342 .00285 -.00026 .00036 -.00090 O21 .1220 .1846 0 .00135 .00368 .00718 .00133 0 0 O26 -.0434 .2478 0 .00069 .00594 .00711 -.00031 0 0 O23 -.1641 .0793 0 .00163 .00189 .00779 -.00076 0 0