Dumortierite
Alexander V D, Griffen D T, Martin T J
American Mineralogist 71 (1986) 786-794
Crystal chemistry of some Fe- and Ti-poor dumortierites
Sample: #7, BYU 12-5119, from Virgin Mtns., Nevada, USA
O5y and O11x have been editted
_database_code_amcsd 0001023
11.798 20.210 4.710 90 90 90 Pmcn
atom     x     y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Si1    .75 .4053 .0871      .0027  .0102  .0029      0      0  .0001
Si2  .5243 .3283 .5870      .0066  .0056  .0036 -.0016  .0000  .0004
Al1    .75 .2498 .3997 .84  .0050  .0073  .0492      0      0 -.0002
Al2  .6104 .4725 .5580      .0029  .0045  .0035 -.0002 -.0003 -.0004
Al3  .4911 .4311 .0595      .0036  .0047  .0029 -.0001  .0001  .0000
Al4  .3586 .2891 .0576      .0047  .0063  .0058  .0014 -.0001 -.0011
B      .25 .4160 .2251      .0051  .0053  .0052      0      0 -.0009
O1     .75 .4540 .3771      .0056  .0131  .0066      0      0 -.0017
O2     .75 .3265 .1498      .0145  .0184  .0138      0      0  .0047
O3   .6394 .4243 .8963      .0057  .0105  .0055  .0005 -.0003  .0003
O4   .4359 .2827 .4011      .0077  .0110  .0067 -.0018 -.0007  .0005
O5   .5500 .3933 .3963      .0072  .0088  .0061 -.0003 -.0006  .0002
O6   .4539 .3502 .8805      .0100  .0107  .0077 -.0017  .0006 -.0007
O7   .6385 .2870 .6477      .0138  .0158  .0145  .0006 -.0042  .0026
O8     .25 .3505 .1621      .0059  .0101  .0146      0      0 -.0029
O9   .3511 .4479 .2548      .0058  .0096  .0094 -.0004  .0004 -.0019
O10    .25 .2724 .7612      .0082  .0143  .0073      0      0 -.0016
O11  .4664 .4881 .7499      .0046  .0080  .0049  .0002  .0000 -.0002