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-350, T = 350 C _database_code_amcsd 0003581 20.053 23.838 12.850 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 .18703 .18526 .6745 .23 .0381 .0419 .0319 .0404 .0013 .0009 -.0040 Si1 .18703 .18526 .6745 .77 .0381 .0419 .0319 .0404 .0013 .0009 -.0040 Al2 .18929 .02486 .3301 .31 .0413 .0460 .0458 .0319 .0025 -.0037 -.0033 Si2 .18929 .02486 .3301 .69 .0413 .0460 .0458 .0319 .0025 -.0037 -.0033 Al3 .07692 .18450 .8410 .23 .0412 .0367 .0322 .0547 .0020 .0046 .0066 Si3 .07692 .18450 .8410 .77 .0412 .0367 .0322 .0547 .0020 .0046 .0066 Al4 .07832 .02062 .1630 .20 .0391 .0339 .0463 .0368 .0000 -.0000 .0008 Si4 .07832 .02062 .1630 .80 .0391 .0339 .0463 .0368 .0000 -.0000 .0008 Al5 .21870 .08387 .5390 .05 .0407 .0439 .0396 .0383 -.0030 .0002 -.0079 Si5 .21870 .08387 .5390 .95 .0407 .0439 .0396 .0383 -.0030 .0002 -.0079 Al6 .12429 .08451 .9639 .04 .0443 .0462 .0404 .0460 -.0038 -.0042 .0075 Si6 .12429 .08451 .9639 .96 .0443 .0462 .0404 .0460 -.0038 -.0042 .0075 O1 .1823 .25 .6386 .058 .082 .034 .056 0 .002 0 O2 .1200 .1655 .7383 .063 .061 .058 .070 -.006 .019 -.004 O3 .1922 .1439 .5741 .066 .087 .052 .057 .011 -.000 -.020 O4 .1916 .0690 .4263 .067 .088 .061 .050 .002 -.014 -.017 O5 .1176 .0301 .2715 .072 .060 .098 .057 .007 -.017 -.008 O6 .0873 .25 .8671 .066 .081 .034 .083 0 .002 0 O7 0 .1689 .8104 .068 .032 .076 .094 0 0 -.000 O8 0 .0221 .1882 .085 .039 .114 .100 0 0 -.021 O9 .1902 .0398 .6243 .087 .142 .057 .060 -.019 .014 .009 O10 .1007 .1465 .9392 .071 .104 .042 .064 .004 -.007 .011 O11 .0987 .0650 .0743 .078 .105 .071 .056 -.004 .015 .024 O12 .2030 .0806 .9588 .106 .041 .148 .128 -.004 -.011 .036 O13 .0950 .0439 .8735 .078 .104 .055 .073 -.020 -.004 -.014 O14 .25 .1745 .75 .071 .061 .074 .077 0 -.027 0 O15 .25 -.0339 .75 .079 .059 .120 .056 0 -.019 0 Ca1 .0785 .0797 .6956 .284 .084 .124 .055 .072 -.012 -.020 .003 Ca2 0 .0859 .7456 .135 .115 Ca3 0 .1388 .0729 .028 .070 Ca3b 0 .0862 -.0469 .022 .062 Ca4 .1944 .0807 .7831 .109 .069