Akizuki M, Kudoh Y, Kuribayashi T
American Mineralogist 81 (1996) 1501-1506
Crystal structures of the {011}, {610}, and {010} growth sectors in brewsterite
Sample: {610} sector
6.779 17.530 7.750 89.98 94.49 90.13 P-1
atom x y z occ Biso
SiTa .3218 .0806 .8229 .75 .95
AlTa .3218 .0806 .8229 .25 .95
SiTa' .3205 .4185 .8223 .70 .95
AlTa' .3205 .4185 .8223 .30 .95
SiTb .4060 .0568 .2115 .65 1.09
AlTb .4060 .0568 .2115 .35 1.09
SiTb' .4055 .4432 .2105 .55 1.09
AlTb' .4055 .4432 .2105 .45 1.09
SiTc .5560 .1583 .5340 .50 1.01
AlTc .5560 .1583 .5340 .50 1.01
SiTc' .5542 .3421 .5333 .70 .90
AlTc' .5542 .3421 .5333 .30 .90
SiTd .9085 .0528 .6407 .94
SiTd' .9077 .4472 .6411 .90
Sr .24969 .25010 .17711 .40 1.60
BaM .24969 .25010 .17711 .55 1.60
KM .24969 .25010 .17711 .01 1.60
O1 .3506 .1045 .0288 1.5
O1' .3494 .3936 .0285 1.4
O2 .4234 .1243 .3592 2.0
O2' .4218 .3761 .3619 1.9
O3 .7855 .1216 .5463 1.8
O3' .7806 .3797 .5449 1.5
O4 .4497 .1406 .7160 1.8
O4' .4501 .3589 .7120 1.8
O5 .0848 .0900 .7637 2.0
O5' .0834 .4076 .7606 1.9
O6 .2250 .9967 .2412 2.6
O6' .2213 .5030 .2389 2.5
O7 .3854 .9912 .7948 1.6
O7' .3847 .5081 .7961 1.5
O8 0 0 .5 3.0
O8' 0 .5 .5 2.8
O9 .5715 .2512 .4991 2.4
Wat10 .0580 .2507 .4700 3.6
Wat11 .9285 .1461 .1506 4.9
Wat11' .9252 .3543 .1493 4.9
Wat12 .6031 .2490 .0238 4.9
Wat13 .0639 .2494 .8631 4.9
Cabella R, Lucchetti G, Palenzona A, Quartieri S, Vezzalini G
European Journal of Mineralogy 5 (1993) 353-360
First occurrence of a Ba-dominant brewsterite: structural features
6.790 17.581 7.735 90 94.50 90 P2_1/m
BaBA1 .2458 1/4 .1734 .82 1.3
NaBA1 .2458 1/4 .1734 .035 1.3
KBA1 .2458 1/4 .1734 .02 1.3
MgBA1 .2458 1/4 .1734 .04 1.3
BaBA2 .264 1/4 .043 .04 4.0
BaBA3 .211 1/4 .297 .04 4.0
AlTA .3215 .0803 .8230 .35 1.1
SiTA .3215 .0803 .8230 .65 1.1
AlTB .4070 .0566 .2116 .35 1.1
SiTB .4070 .0566 .2116 .65 1.1
AlTC .5534 .1581 .5349 .35 .9
SiTC .5534 .1581 .5349 .65 .9
SiTD .9067 .0526 .6412 1.1
O1 .3537 .1034 .028 1.3
O2 .426 .1222 .360 1.8
O3 .784 .1212 .547 1.7
O4 .446 .1403 .714 1.8
O5 .081 .0911 .765 2.5
O6 .227 .9969 .240 2.6
O7 .383 .9920 .795 1.7
O8 0 0 1/2 2.8
O9 .564 1/4 .501 2.1
Wat1 .051 1/4 .469 .96 3.2
Wat2 .920 .1414 .142 5.0
Wat3 .607 1/4 .022 .96 4.1
Wat4 .060 1/4 .854 .96 3.5
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