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: Crystallized from glass at 1200 degrees C for 350 hours Note: tetrahedral site occupancies are assumed, not refined _database_code_amcsd 0007854 17.047 9.7315 9.3463 90 90 90 Cccm atom x y z Biso MgM .339 0 .25 -1.5 AlT11 .25 .25 .252 -2.17 SiT16 0 .5 .25 -2.17 SiT21 .1889 .074 0 -2.17 SiT23 .1314 -.236 0 -2.17 AlT26 .0527 .299 0 -2.17 O11 .241 -.096 .362 -1.9 O16 .068 -.405 .352 -1.9 O13 -.178 -.308 .357 -1.9 O26 .047 -.227 0 -1.9 O11 .114 .180 0 -1.9 O23 .148 -.083 0 -1.9