Boggsite Zanardi S, Cruciani G, Alberti A, Galli E American Mineralogist 89 (2004) 1033-1042 Dehydration and rehydration process in boggsite: an in-situ X-ray single-crystal study Note: Ca represents an unknown distribution across the Ca sites of [Ca.806,Mg.138,Na.041,K.007,Fe.006,Sr.001] Note: Reported occupancies are discrepant with reported formula. Sample: BOG-500, T = 500 C _database_code_amcsd 0003582 20.041 23.814 12.869 90 90 90 Imma atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Al1 .18720 .18501 .6746 .22 .0427 .0475 .0363 .0441 .0009 .0012 -.0054 Si1 .18720 .18501 .6746 .78 .0427 .0475 .0363 .0441 .0009 .0012 -.0054 Al2 .18952 .02465 .3305 .30 .04557 .0487 .0519 .0359 .0024 -.0051 -.0027 Si2 .18952 .02465 .3305 .70 .04557 .0487 .0519 .0359 .0024 -.0051 -.0027 Al3 .07665 .18452 .8404 .24 .0463 .0405 .0371 .0613 .0023 .0061 .0073 Si3 .07665 .18452 .8404 .76 .0463 .0405 .0371 .0613 .0023 .0061 .0073 Al4 .07831 .01987 .1633 .23 .0442 .0380 .0533 .0410 -.0003 .0009 .0013 Si4 .07831 .01987 .1633 .77 .0442 .0380 .0533 .0410 -.0003 .0009 .0013 Al5 .21889 .08420 .5376 .04 .0448 .0468 .0451 .0422 -.0024 .0002 -.0080 Si5 .21889 .08420 .5376 .96 .0448 .0468 .0451 .0422 -.0024 .0002 -.0080 Al6 .12373 .08518 .9669 .04 .0483 .0489 .0459 .0499 -.0042 -.0044 .0081 Si6 .12373 .08518 .9669 .96 .0483 .0489 .0459 .0499 -.0042 -.0044 .0081 O1 .1841 .25 .6405 .067 .094 .036 .069 0 .004 0 O2 .1208 .1660 .7388 .072 .068 .067 .080 -.007 .024 -.007 O3 .1924 .1442 .5740 .072 .095 .057 .063 .012 -.001 -.021 O4 .1905 .0685 .4266 .072 .092 .070 .053 .004 -.014 -.021 O5 .1181 .0280 .2720 .077 .064 .106 .059 .003 -.018 -.006 O6 .0868 .25 .8666 .076 .095 .037 .094 0 .004 0 O7 0 .1687 .8087 .075 .037 .081 .104 0 0 .002 O8 0 .0194 .1903 .087 .046 .117 .098 0 0 -.006 O9 .1948 .0400 .6247 .100 .170 .062 .068 -.021 .017 .010 O10 .0991 .1465 .9394 .080 .113 .050 .075 .006 -.010 .016 O11 .0966 .0662 .0774 .081 .104 .077 .061 -.006 .015 .021 O12 .2027 .0829 .9641 .115 .041 .168 .133 -.005 -.006 .036 O13 .0967 .0436 .8776 .088 .122 .064 .077 -.018 -.007 -.013 O14 .25 .1716 .75 .079 .068 .084 .084 0 -.033 0 O15 .25 -.0344 .75 .088 .064 .135 .064 0 -.020 0 Ca1 .0772 .0803 .7043 .243 .098 .147 .063 .084 -.010 -.036 .003 Ca2 0 .0858 .7532 .120 .110 Ca3 0 .1267 .0550 .023 .066 Ca4 .1929 .0789 .7779 .166 .074