Maya Blue Chiari G, Giustetto R, Ricchiardi G European Journal of Mineralogy 15 (2003) 21-33 Crystal structure refinements of palygorskite and Maya Blue from molecular modeling and powder synchrotron diffraction Sample: MP (3 cells+indigo) _database_code_amcsd 0006957 13.410 17.891 15.740 90 107.06 90 C2/m atom x y z occ Si1 .714 .413 .325 Si1' .272 .413 .013 Si1'' .714 .413 .659 Si2 .705 1/3 .494 Si2' .273 1/3 .844 Si2'' .705 1/3 .827 Mg2 .5 .416 .5 Mg2' .5 .416 5/6 Mg3 .5 .34 0 Mg3' .5 .34 2/3 OH .424 .5 .539 OH' .571 .5 .805 OH'' .424 .5 .873 O1 .587 .41 .287 O1' .399 .41 .05 O1'' .587 .41 .621 O2 .58 .347 .467 O2' .398 .347 .871 O2'' .58 .347 .8 Wat1 .584 .245 .648 Wat1' .383 .245 .686 Wat1'' .584 .245 .982 O3 .243 .5 .004 O3' .751 .5 .671 O3'' .243 .5 .671 O4 .25 .75 .5 O4' .25 .75 5/6 O4'' .25 .75 5/6 O5 .742 .372 .418 O5' .239 .372 .92 O5'' .742 .372 .751 O6 .754 .368 .589 O6' .228 .368 .749 O6'' .754 .368 .922 WatZ1 .5 .155 .5 .73 WatZ1' .5 .155 5/6 .73 WatZ2 .5 .084 0 .73 WatZ2' .5 .084 2/3 .73 C1 .0017 .5 .4549 .27 C2 .0036 .5747 .4013 .135 C3 .0068 .5436 .314 .27 C4 .0097 .5806 .2349 .27 C5 .0124 .5376 .1616 .27 N1 .0036 .4367 .4014 .135 Oin .0029 .6413 .4218 .135