Palygorskite Post J E, Heaney P J American Mineralogist 93 (2008) 667-675 Synchotron powder X-ray diffraction study of the structure and dehydration behavior of palygorskite Locality: Yulu River, Korea Sample: T = 300 K _database_code_amcsd 0004564 13.2858 17.8476 5.2419 90 107.560 90 C2/m atom x y z occ Uiso AlM1 0 .0804 .5 .005 MgM2 0 .1681 0 .005 MgM3 0 0 0 .14 .005 Si1 .2140 .0845 .972 .975 .01 Al1 .2140 .0845 .972 .025 .01 Si2 .2081 .1640 .476 .975 .01 Al2 .2081 .1640 .476 .025 .01 O1 .0667 0 .413 .01 O2 .0838 .0883 .853 .01 O3 .0800 .1586 .388 .01 Wat4 .1027 .2528 .916 .01 O5 .25 .25 .5 .01 O6 .252 0 .004 .01 O7 .2570 .1264 .260 .01 O8 .2661 .1232 .761 .01 Wat1 .450 0 .697 .12 Wat2 .472 .1487 .551 .5 .05 H .13 0 .42 .015