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 = room temperature, in air
Locality: Durango, Mexico
13.405 27.016 5.2750 90 90 90 Pncn
atom x y z occ Uiso
Mg1 0 .0297 .25 .040
Mg2 0 .0850 .75 .040
Mg3 0 .1434 .25 .040
Mg4 0 .2049 .75 .040
Si1 .2026 .0282 .586 .040
Si2 .1973 .1409 .576 .040
Si3 .2042 .1949 .070 .040
O1 .0824 .0276 .585 .035
OH2 .0805 .0854 .081 .035
O3 .0762 .1431 .597 .035
O4 .0847 .1971 .077 .035
O5 .248 .0040 .324 .035
O6 .2451 .0849 .579 .035
O7 .243 .1708 .334 .035
O8 .249 .1736 .802 .035
O9 .25 .25 .089 .035
Wat10 .088 .2596 .594 .035
Wat11 .562 .910 .988 .91 .10
Wat12 .50 .180 .25 .10
Wat13 .50 .023 .25 .43 .10
Wat14 .439 .157 .74 .33 .10
Sample: T = 742 K
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
Brauner K, Preisinger A
Tschermaks Mineralogische und Petrographische Mitteilungen 6 (1956) 120-140
Struktur und entstehung des sepioliths
13.4 26.79999 5.28 90 90 90 Pncn
atom x y z
Mg1 0 .028 .25
Mg2 0 .916 .25
Mg3 0 .14 .25
Mg4 0 .804 .25
Si1 .208 .028 .5625
Si2 .208 .14 .5625
Si3 .208 .196 .0625
O1 .25 .25 .0625
O2 .084 .028 .5625
O3 .084 .14 .5625
O4 .084 .196 .0625
O5 .24 0 .3125
O6 .24 .084 .5625
O7 .24 .168 .3125
O8 .24 .168 .8125
OH .084 .084 .0625
Wat1 .083 .25 .5
Wat2 .083 .416 .9167
Wat3 0 .672 .25
Wat4 0 .485 .25
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Total number of retrieved datasets: 3 View in amc, download in amc
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