Sapphirine
Moore P B
American Mineralogist 54 (1969) 31-49
The crystal structure of sapphirine
_database_code_amcsd 0000187
11.266 14.401 9.929 90 125.46 90 P2_1/a
atom      x      y     z occ Biso
Al1   .0078  .1584 .1375      .27
Al2  -.0089  .1560 .6136      .40
Al3  -.0043  .0567 .3726 .50  .20
Mg3  -.0043  .0567 .3726 .50  .20
Mg4  -.0013  .0567 .8728      .38
Mg5   .0081  .3667 .1425      .31
Mg6  -.0084  .3649 .6079      .26
Al7       0  .2569 .8754      .33
Al8   .2510  .2496 .8755      .33
Al1   .1963  .5559 .2442      .42
Si2   .2018  .5536 .7552 .75  .44
Al2   .2018  .5536 .7552 .25  .44
Al3   .2026  .4502 .5072 .50  .20
Si3   .2026  .4502 .5072 .50  .20
Al4   .1993  .4420 .0051 .75  .19
Si4   .1993  .4420 .0051 .25  .19
Al5   .1878  .7552 .7553      .21
Al6   .1872  .2458 .5041      .20
O1    .1205  .2556 .1174      .26
O2    .1281  .2524 .6315      .54
O3    .1170  .0555 .1244      .39
O4    .1091  .0533 .6176      .54
O5    .1146  .1547 .3658      .49
O6    .1052  .1667 .8467      .58
O7    .1124 -.0540 .3754      .72
O8    .1114 -.0611 .8692      .55
O9    .3726  .2503 .1123      .35
O10   .3771  .2472 .6261      .64
O11   .3596  .0389 .1255      .54
O12   .3696  .0408 .6287      .60
O13   .3898  .3425 .3866      .63
O14   .3943  .3320 .9009      .23
O15   .3620  .1486 .3507      .36
O16   .3736  .1568 .8751      .53
O17   .1415  .4556 .1246      .35
O18   .1482  .4618 .6330      .42
O19   .1332  .3500 .3961      .62
O20   .1244  .3449 .8697      .28