Sepiolite Post J E, Bish D L, Heaney P J American Mineralogist 92 (2007) 91-97 Synchrotron powder X-ray diffraction study of the structure and dehydration behavior of sepiolite Sample: T = 742 K Locality: Durango, Mexico _database_code_amcsd 0004270 23.446 11.352 5.2782 90 89.06 90 P2_1/n atom x y z Uiso Mg1 .0238 .023 .244 .02 Mg2 .0862 .115 .729 .02 Mg3 .1431 .179 .244 .02 Mg4 .1942 .246 .719 .02 Si1 .0869 .833 .561 .02 Si2 .2012 .970 .539 .02 Si3 .2504 .027 .028 .02 O1 .0558 .959 .580 .025 OH2 .1024 .042 .074 .025 O3 .1664 .0903 .568 .025 O4 .2185 .153 .040 .025 O5 .0680 .744 .340 .025 O6 .1529 .870 .574 .025 O7 .235 .950 .273 .025 O8 .2387 .947 .784 .025 O9 .3172 .034 .061 .025 Wat10 .2733 .211 .512 .025 Si1b .9668 .234 .916 .02 Si2b .0807 .374 .894 .02 Si3b .1278 .454 .405 .02 O1b .0092 .124 .923 .02 OH2b .0601 .174 .386 .025 O3b .1172 .257 .917 .025 O4b .1653 .336 .407 .025 O5b .9260 .227 .166 .025 O6b .0152 .332 .868 .025 O7b .092 .446 .152 .025 O8b .0798 .443 .627 .025