Cordierite Schwartz K B, Leong D B, McConville R L Physics and Chemistry of Minerals 20 (1994) 563-574 Structural chemistry of synthetic cordierite: evidence for solid solutions and disordered compositional domains in Bi-flux-grown Mg-cordierites Sample: Synthesized in 10 at% bismuth oxide flux at 1000 C for 12 hours Note: tetrahedral site occupancies are assumed, not refined _database_code_amcsd 0007857 17.0409 9.7382 9.3285 90 90 90 Cccm atom x y z occ Biso MgM .3376 0 .25 1.09 AlT11 .25 .25 .2526 .79 SiT16 0 .5 .25 .87 SiT21 .1915 .0795 0 .85 SiT23 .1348 -.2381 0 .74 AlT26 .0497 .3100 0 .69 O11 .2473 -.1038 .3581 .97 O16 .0633 -.4163 .3485 .89 O13 -.1733 -.3107 .3581 .82 O26 .0420 -.2504 0 1.43 O21 .1201 .1881 0 1.45 O23 .1639 -.0803 0 1.27 BiC1 0 0 .25 .105 12 BiC2 0 0 0 .039 8