Boralsilite Peacor D R, Rouse R C, Grew E S American Mineralogist 84 (1999) 1152-1161 The crystal structure of boralsilite and its relation to a family of boroaluminosilicates, sillimanite, and andalusite _database_code_amcsd 0002272 14.767 5.574 15.079 90 91.96 90 C2/m atom x y z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Al1 .86873 0 .33837 .0058 .0038 .0065 0 .0004 0 Al2 .81194 0 .15838 .0071 .0041 .0040 0 .0009 0 Al3 .57170 0 .06951 .0059 .0048 .0088 0 .0030 0 Al4 .67697 0 .34140 .0046 .0038 .0067 0 .0002 0 Al5 .00396 .74670 .24322 .0062 .0033 .0068 0 -.0004 -.0001 Al6 .25 .25 0 .0057 .0037 .0055 .0001 -.0005 -.0007 Al7 .25 .25 .5 .0066 .0037 .0051 .0004 .0002 .0009 Si .42541 0 .41917 .0059 .0039 .0063 0 .0008 0 B1 .1018 0 .1009 .014 .003 .008 0 .006 0 B2 .3774 0 .1192 .009 .008 .009 0 -.005 0 B3 .1356 0 .3633 .009 .008 .004 0 .001 0 O1 .7658 0 .2671 .0055 .0107 .0062 0 -.0008 0 O2 .7965 0 .4340 .0077 .0046 .0078 0 .0016 0 O3 .9244 0 .2214 .0038 .0042 .0075 0 -.0001 0 O4 .9355 .7387 .3573 .0086 .0069 .0086 .0006 .0023 .0013 O5 0 .5 .5 .0114 .0127 .0099 0 -.0032 0 O6 .3234 0 .4584 .0072 .0047 .0089 0 .0006 0 O7 .8208 .7151 .1063 .0077 .0059 .0080 .0001 -.0027 -.0009 O8 .6973 0 .0613 .0056 .0055 .0078 0 .0024 0 O9 .0680 .7843 .1333 .0086 .0054 .0082 .0004 .0016 .0001 O10A .4444 0 .0494 .95 .0087 .0158 .0126 0 -.0011 0 O10B 0 .5 0 .15 2.7 O11 .6678 .2877 .3991 .0092 .0064 .0060 -.0002 -.0020 -.0011 O12 .5757 0 .2812 .0047 .0059 .0084 0 -.0011 0 O13 .4313 0 .2005 .0075 .0045 .0094 0 -.0016 0 O14 .0767 0 .2927 .0068 .0050 .0066 0 -.0013 0 O15 .8314 0 .9594 .0052 .0044 .0098 0 .0002 0