Brewsterite-Sr Schlenker J L, Pluth J J, Smith J V Acta Crystallographica B33 (1977) 2907-2910 Refinement of the crystal structure of brewsterite, Ba0.5Sr1.5Al4Si12O32*10H2O _database_code_amcsd 0009605 6.793 17.573 7.759 90 94.54 90 P2_1/m atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Sr .2501 .25 .1780 .71 .0080 .0009 .0042 0 .0005 0 Ba .2501 .25 .1780 .24 .0080 .0009 .0042 0 .0005 0 K .2501 .25 .1780 .01 .0080 .0009 .0042 0 .0005 0 Al(A) .3218 .0812 .8224 .27 .0054 .0013 .0029 .0001 .0002 0 Si(A) .3218 .0812 .8224 .73 .0054 .0013 .0029 .0001 .0002 0 Al(B) .4054 .0566 .2108 .37 .0068 .0012 .0036 .0001 .0005 .0001 Si(B) .4054 .0566 .2108 .63 .0068 .0012 .0036 .0001 .0005 .0001 Al(C) .5553 .1582 .5336 .36 .0064 .0011 .0031 .0002 .0007 .0002 Si(C) .5553 .1582 .5336 .64 .0064 .0011 .0031 .0002 .0007 .0002 Si(D) .9087 .0528 .6410 .0050 .0010 .0036 .0002 0 -.0001 O1 .3501 .1059 .0283 .0122 .0018 .0037 -.0003 .0009 -.0002 O2 .4218 .1240 .3607 .0104 .0029 .0062 .0008 .0009 -.0013 O3 .7825 .1211 .5454 .0096 .0019 .0071 .0013 .0012 .0009 O4 .4500 .1408 .7150 .0117 .0021 .0054 .0001 .0029 .0006 O5 .0850 .0920 .7615 .0081 .0025 .0097 .0022 -.0022 -.0020 O6 .2228 .9966 .2388 .0139 .0022 .0128 -.0012 .0022 .0021 O7 .3851 .9921 .7952 .0094 .0016 .0074 .0006 .0005 -.0004 O8 0 0 .5 .0189 .0030 .0096 .0029 -.0015 -.0030 O9 .5718 .25 .4994 .0204 .0014 .0134 0 .0089 0 Wat1 .0598 .25 .4699 .0256 .0040 .0123 0 .0063 0 Wat2 .9286 .1474 .1518 .0234 .0045 .0299 .0007 .0079 .0035 Wat3 .5996 .25 .0241 .0185 .0037 .0224 0 .0067 0 Wat4 .0665 .25 .8660 .0395 .0022 .0112 0 -.0017 0